Create Library module. Moved book controller to library controller. Added series addition to library while adding all known volumes in background. Fixed Google search context.

backend/database.postgres.sql

@@ -11,6 +11,8 @@ DROP TABLE IF EXISTS book_origins;
 
 DROP TABLE IF EXISTS refresh_tokens;
 
+DROP TABLE IF EXISTS series_subscriptions;
+
 DROP TABLE IF EXISTS users;
 
 DROP TABLE IF EXISTS books;
@@ -53,7 +55,7 @@ CREATE TABLE
         PRIMARY KEY (book_id),
         -- FOREIGN KEY (series_id) REFERENCES series (series_id),
         FOREIGN KEY (provider, provider_series_id) REFERENCES series (provider, provider_series_id) ON DELETE CASCADE,
-        UNIQUE NULLS NOT DISTINCT (provider_series_id, provider_book_id)
+        UNIQUE NULLS NOT DISTINCT (provider_series_id, provider_book_id, book_volume)
     );
 
 ALTER TABLE books
@@ -61,7 +63,7 @@ ALTER COLUMN added_at
 SET DEFAULT now ();
 
 -- CREATE INDEX books_series_id_idx ON books (series_id);
-CREATE INDEX books_provider_series_id_idx ON books (provider_series_id);
+CREATE INDEX books_provider_provider_series_id_idx ON books (provider, provider_series_id);
 
 -- CREATE INDEX books_isbn_idx ON books USING HASH (isbn);
 CREATE INDEX books_book_title_idx ON books (book_title);

backend/nestjs-seshat-api/package-lock.json

@@ -10,6 +10,7 @@
       "license": "UNLICENSED",
       "dependencies": {
         "@nestjs/axios": "^4.0.0",
+        "@nestjs/bullmq": "^11.0.2",
         "@nestjs/common": "^10.0.0",
         "@nestjs/config": "^4.0.0",
         "@nestjs/core": "^10.0.0",
@@ -19,6 +20,7 @@
         "@nestjs/typeorm": "^11.0.0",
         "argon2": "^0.41.1",
         "axios": "^1.7.9",
+        "bullmq": "^5.41.7",
         "class-transformer": "^0.5.1",
         "class-validator": "^0.14.1",
         "cookie-parser": "^1.4.7",
@@ -959,6 +961,12 @@
       "dev": true,
       "license": "BSD-3-Clause"
     },
+    "node_modules/@ioredis/commands": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@ioredis/commands/-/commands-1.2.0.tgz",
+      "integrity": "sha512-Sx1pU8EM64o2BrqNpEO1CNLtKQwyhuXuqyfH7oGKCk+1a33d2r5saW8zNwm3j6BTExtjrv2BxTgzzkMwts6vGg==",
+      "license": "MIT"
+    },
     "node_modules/@isaacs/cliui": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
@@ -1596,6 +1604,84 @@
         "node": ">=8"
       }
     },
+    "node_modules/@msgpackr-extract/msgpackr-extract-darwin-arm64": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-darwin-arm64/-/msgpackr-extract-darwin-arm64-3.0.3.tgz",
+      "integrity": "sha512-QZHtlVgbAdy2zAqNA9Gu1UpIuI8Xvsd1v8ic6B2pZmeFnFcMWiPLfWXh7TVw4eGEZ/C9TH281KwhVoeQUKbyjw==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@msgpackr-extract/msgpackr-extract-darwin-x64": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-darwin-x64/-/msgpackr-extract-darwin-x64-3.0.3.tgz",
+      "integrity": "sha512-mdzd3AVzYKuUmiWOQ8GNhl64/IoFGol569zNRdkLReh6LRLHOXxU4U8eq0JwaD8iFHdVGqSy4IjFL4reoWCDFw==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@msgpackr-extract/msgpackr-extract-linux-arm": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-linux-arm/-/msgpackr-extract-linux-arm-3.0.3.tgz",
+      "integrity": "sha512-fg0uy/dG/nZEXfYilKoRe7yALaNmHoYeIoJuJ7KJ+YyU2bvY8vPv27f7UKhGRpY6euFYqEVhxCFZgAUNQBM3nw==",
+      "cpu": [
+        "arm"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@msgpackr-extract/msgpackr-extract-linux-arm64": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-linux-arm64/-/msgpackr-extract-linux-arm64-3.0.3.tgz",
+      "integrity": "sha512-YxQL+ax0XqBJDZiKimS2XQaf+2wDGVa1enVRGzEvLLVFeqa5kx2bWbtcSXgsxjQB7nRqqIGFIcLteF/sHeVtQg==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@msgpackr-extract/msgpackr-extract-linux-x64": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-linux-x64/-/msgpackr-extract-linux-x64-3.0.3.tgz",
+      "integrity": "sha512-cvwNfbP07pKUfq1uH+S6KJ7dT9K8WOE4ZiAcsrSes+UY55E/0jLYc+vq+DO7jlmqRb5zAggExKm0H7O/CBaesg==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@msgpackr-extract/msgpackr-extract-win32-x64": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-win32-x64/-/msgpackr-extract-win32-x64-3.0.3.tgz",
+      "integrity": "sha512-x0fWaQtYp4E6sktbsdAqnehxDgEc/VwM7uLsRCYWaiGu0ykYdZPiS8zCWdnjHwyiumousxfBm4SO31eXqwEZhQ==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
     "node_modules/@nestjs/axios": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/@nestjs/axios/-/axios-4.0.0.tgz",
@@ -1607,6 +1693,34 @@
         "rxjs": "^7.0.0"
       }
     },
+    "node_modules/@nestjs/bull-shared": {
+      "version": "11.0.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/bull-shared/-/bull-shared-11.0.2.tgz",
+      "integrity": "sha512-dFlttJvBqIFD6M8JVFbkrR4Feb39OTAJPJpFVILU50NOJCM4qziRw3dSNG84Q3v+7/M6xUGMFdZRRGvBBKxoSA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "2.8.1"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^10.0.0 || ^11.0.0",
+        "@nestjs/core": "^10.0.0 || ^11.0.0"
+      }
+    },
+    "node_modules/@nestjs/bullmq": {
+      "version": "11.0.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/bullmq/-/bullmq-11.0.2.tgz",
+      "integrity": "sha512-Lq6lGpKkETsm0RDcUktlzsthFoE3A5QTMp2FwPi1eztKqKD6/90KS1TcnC9CJFzjpUaYnQzIMrlNs55e+/wsHA==",
+      "license": "MIT",
+      "dependencies": {
+        "@nestjs/bull-shared": "^11.0.2",
+        "tslib": "2.8.1"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^10.0.0 || ^11.0.0",
+        "@nestjs/core": "^10.0.0 || ^11.0.0",
+        "bullmq": "^3.0.0 || ^4.0.0 || ^5.0.0"
+      }
+    },
     "node_modules/@nestjs/cli": {
       "version": "10.4.9",
       "resolved": "https://registry.npmjs.org/@nestjs/cli/-/cli-10.4.9.tgz",
@@ -3456,6 +3570,21 @@
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       "license": "MIT"
     },
+    "node_modules/bullmq": {
+      "version": "5.41.7",
+      "resolved": "https://registry.npmjs.org/bullmq/-/bullmq-5.41.7.tgz",
+      "integrity": "sha512-eZbKJSx15bflfzKRiR+dKeLTr/M/YKb4cIp73OdU79PEMHQ6aEFUtbG6R+f0KvLLznI/O01G581U2Eqli6S2ew==",
+      "license": "MIT",
+      "dependencies": {
+        "cron-parser": "^4.9.0",
+        "ioredis": "^5.4.1",
+        "msgpackr": "^1.11.2",
+        "node-abort-controller": "^3.1.1",
+        "semver": "^7.5.4",
+        "tslib": "^2.0.0",
+        "uuid": "^9.0.0"
+      }
+    },
     "node_modules/busboy": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/busboy/-/busboy-1.6.0.tgz",
@@ -3842,6 +3971,15 @@
         "node": ">=0.8"
       }
     },
+    "node_modules/cluster-key-slot": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/cluster-key-slot/-/cluster-key-slot-1.1.2.tgz",
+      "integrity": "sha512-RMr0FhtfXemyinomL4hrWcYJxmX6deFdCxpJzhDttxgO1+bcCnkk+9drydLVDmAMG7NE6aN/fl4F7ucU/90gAA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/co": {
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
@@ -4093,6 +4231,18 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/cron-parser": {
+      "version": "4.9.0",
+      "resolved": "https://registry.npmjs.org/cron-parser/-/cron-parser-4.9.0.tgz",
+      "integrity": "sha512-p0SaNjrHOnQeR8/VnfGbmg9te2kfyYSQ7Sc/j/6DtPL3JQvKxmjO9TSjNFpujqV3vEYYBvNNvXSxzyksBWAx1Q==",
+      "license": "MIT",
+      "dependencies": {
+        "luxon": "^3.2.1"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -4202,6 +4352,15 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/denque": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/denque/-/denque-2.1.0.tgz",
+      "integrity": "sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.10"
+      }
+    },
     "node_modules/depd": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
@@ -4221,6 +4380,16 @@
         "npm": "1.2.8000 || >= 1.4.16"
       }
     },
+    "node_modules/detect-libc": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.0.3.tgz",
+      "integrity": "sha512-bwy0MGW55bG41VqxxypOsdSdGqLwXPI/focwgTYCFMbdUiBAxLg9CFzG08sz2aqzknwiX7Hkl0bQENjg8iLByw==",
+      "license": "Apache-2.0",
+      "optional": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/detect-newline": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/detect-newline/-/detect-newline-3.1.0.tgz",
@@ -5764,6 +5933,30 @@
         "node": ">=12.0.0"
       }
     },
+    "node_modules/ioredis": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-5.5.0.tgz",
+      "integrity": "sha512-7CutT89g23FfSa8MDoIFs2GYYa0PaNiW/OrT+nRyjRXHDZd17HmIgy+reOQ/yhh72NznNjGuS8kbCAcA4Ro4mw==",
+      "license": "MIT",
+      "dependencies": {
+        "@ioredis/commands": "^1.1.1",
+        "cluster-key-slot": "^1.1.0",
+        "debug": "^4.3.4",
+        "denque": "^2.1.0",
+        "lodash.defaults": "^4.2.0",
+        "lodash.isarguments": "^3.1.0",
+        "redis-errors": "^1.2.0",
+        "redis-parser": "^3.0.0",
+        "standard-as-callback": "^2.1.0"
+      },
+      "engines": {
+        "node": ">=12.22.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/ioredis"
+      }
+    },
     "node_modules/ipaddr.js": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
@@ -7002,12 +7195,24 @@
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       "license": "MIT"
     },
+    "node_modules/lodash.defaults": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/lodash.defaults/-/lodash.defaults-4.2.0.tgz",
+      "integrity": "sha512-qjxPLHd3r5DnsdGacqOMU6pb/avJzdh9tFX2ymgoZE27BmjXrNy/y4LoaiTeAb+O3gL8AfpJGtqfX/ae2leYYQ==",
+      "license": "MIT"
+    },
     "node_modules/lodash.includes": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/lodash.includes/-/lodash.includes-4.3.0.tgz",
       "integrity": "sha512-W3Bx6mdkRTGtlJISOvVD/lbqjTlPPUDTMnlXZFnVwi9NKJ6tiAk6LVdlhZMm17VZisqhKcgzpO5Wz91PCt5b0w==",
       "license": "MIT"
     },
+    "node_modules/lodash.isarguments": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz",
+      "integrity": "sha512-chi4NHZlZqZD18a0imDHnZPrDeBbTtVN7GXMwuGdRH9qotxAjYs3aVLKc7zNOG9eddR5Ksd8rvFEBc9SsggPpg==",
+      "license": "MIT"
+    },
     "node_modules/lodash.isboolean": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz",
@@ -7085,6 +7290,15 @@
         "yallist": "^3.0.2"
       }
     },
+    "node_modules/luxon": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/luxon/-/luxon-3.5.0.tgz",
+      "integrity": "sha512-rh+Zjr6DNfUYR3bPwJEnuwDdqMbxZW7LOQfUN4B54+Cl+0o5zaU9RJ6bcidfDtC1cWCZXQ+nvX8bf6bAji37QQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/magic-string": {
       "version": "0.30.8",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.8.tgz",
@@ -7327,6 +7541,37 @@
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       "license": "MIT"
     },
+    "node_modules/msgpackr": {
+      "version": "1.11.2",
+      "resolved": "https://registry.npmjs.org/msgpackr/-/msgpackr-1.11.2.tgz",
+      "integrity": "sha512-F9UngXRlPyWCDEASDpTf6c9uNhGPTqnTeLVt7bN+bU1eajoR/8V9ys2BRaV5C/e5ihE6sJ9uPIKaYt6bFuO32g==",
+      "license": "MIT",
+      "optionalDependencies": {
+        "msgpackr-extract": "^3.0.2"
+      }
+    },
+    "node_modules/msgpackr-extract": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/msgpackr-extract/-/msgpackr-extract-3.0.3.tgz",
+      "integrity": "sha512-P0efT1C9jIdVRefqjzOQ9Xml57zpOXnIuS+csaB4MdZbTdmGDLo8XhzBG1N7aO11gKDDkJvBLULeFTo46wwreA==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "node-gyp-build-optional-packages": "5.2.2"
+      },
+      "bin": {
+        "download-msgpackr-prebuilds": "bin/download-prebuilds.js"
+      },
+      "optionalDependencies": {
+        "@msgpackr-extract/msgpackr-extract-darwin-arm64": "3.0.3",
+        "@msgpackr-extract/msgpackr-extract-darwin-x64": "3.0.3",
+        "@msgpackr-extract/msgpackr-extract-linux-arm": "3.0.3",
+        "@msgpackr-extract/msgpackr-extract-linux-arm64": "3.0.3",
+        "@msgpackr-extract/msgpackr-extract-linux-x64": "3.0.3",
+        "@msgpackr-extract/msgpackr-extract-win32-x64": "3.0.3"
+      }
+    },
     "node_modules/multer": {
       "version": "1.4.4-lts.1",
       "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.4-lts.1.tgz",
@@ -7406,7 +7651,6 @@
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/node-addon-api": {
@@ -7459,6 +7703,21 @@
         "node-gyp-build-test": "build-test.js"
       }
     },
+    "node_modules/node-gyp-build-optional-packages": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/node-gyp-build-optional-packages/-/node-gyp-build-optional-packages-5.2.2.tgz",
+      "integrity": "sha512-s+w+rBWnpTMwSFbaE0UXsRlg7hU4FjekKU4eyAih5T8nJuNZT1nNsskXpxmeqSK9UzkBl6UgRlnKc8hz8IEqOw==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "detect-libc": "^2.0.1"
+      },
+      "bin": {
+        "node-gyp-build-optional-packages": "bin.js",
+        "node-gyp-build-optional-packages-optional": "optional.js",
+        "node-gyp-build-optional-packages-test": "build-test.js"
+      }
+    },
     "node_modules/node-int64": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/node-int64/-/node-int64-0.4.0.tgz",
@@ -8426,6 +8685,27 @@
         "node": ">= 12.13.0"
       }
     },
+    "node_modules/redis-errors": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/redis-errors/-/redis-errors-1.2.0.tgz",
+      "integrity": "sha512-1qny3OExCf0UvUV/5wpYKf2YwPcOqXzkwKKSmKHiE6ZMQs5heeE/c8eXK+PNllPvmjgAbfnsbpkGZWy8cBpn9w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/redis-parser": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/redis-parser/-/redis-parser-3.0.0.tgz",
+      "integrity": "sha512-DJnGAeenTdpMEH6uAJRK/uiyEIH9WVsUmoLwzudwGJUwZPp80PDBWPHXSAGNPwNvIXAbe7MSUB1zQFugFml66A==",
+      "license": "MIT",
+      "dependencies": {
+        "redis-errors": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/reflect-metadata": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/reflect-metadata/-/reflect-metadata-0.2.2.tgz",
@@ -9074,6 +9354,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/standard-as-callback": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/standard-as-callback/-/standard-as-callback-2.1.0.tgz",
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+      "license": "MIT"
+    },
     "node_modules/statuses": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",

backend/nestjs-seshat-api/package.json

@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "@nestjs/axios": "^4.0.0",
+    "@nestjs/bullmq": "^11.0.2",
     "@nestjs/common": "^10.0.0",
     "@nestjs/config": "^4.0.0",
     "@nestjs/core": "^10.0.0",
@@ -30,6 +31,7 @@
     "@nestjs/typeorm": "^11.0.0",
     "argon2": "^0.41.1",
     "axios": "^1.7.9",
+    "bullmq": "^5.41.7",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.1",
     "cookie-parser": "^1.4.7",

backend/nestjs-seshat-api/src/app.module.ts

@@ -15,6 +15,8 @@ import { serialize_token, serialize_user_short, serialize_user_long, serialize_r
 import { BooksModule } from './books/books.module';
 import { ProvidersModule } from './providers/providers.module';
 import { SeriesModule } from './series/series.module';
+import { LibraryModule } from './library/library.module';
+import { BullModule } from '@nestjs/bullmq';
 
 @Module({
   imports: [
@@ -23,6 +25,17 @@ import { SeriesModule } from './series/series.module';
       imports: [ConfigModule],
       useClass: DatabaseOptions
     }),
+    BullModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: (config: ConfigService) => ({
+        connection: {
+          host: config.get('REDIS_HOST') ?? 'localhost',
+          port: config.get('REDIS_PORT') ?? 6379,
+          password: config.get('REDIS_PASSWORD'),
+        }
+      })
+    }),
     TypeOrmModule.forFeature([UserEntity]),
     UsersModule,
     AuthModule,
@@ -58,7 +71,8 @@ import { SeriesModule } from './series/series.module';
     }),
     BooksModule,
     ProvidersModule,
-    SeriesModule
+    SeriesModule,
+    LibraryModule
   ],
   controllers: [AppController],
   providers: [AppService, UsersService],

backend/nestjs-seshat-api/src/auth/auth.controller.ts

@@ -197,7 +197,7 @@ export class AuthController {
             msg: 'Failed to register due to duplicate userLogin.',
           });
 
-          response.statusCode = 400;
+          response.statusCode = 409;
           return {
             success: false,
             error_message: 'Username already exist.',

backend/nestjs-seshat-api/src/books/books.controller.ts

@@ -1,94 +0,0 @@
-import { Body, Controller, Get, Post, Put, Request, Res, UseGuards } from '@nestjs/common';
-import { Response } from 'express';
-import { JwtAccessGuard } from 'src/auth/guards/jwt-access.guard';
-import { BooksService } from './books.service';
-import { BookSearchResultDto } from 'src/providers/dto/book-search-result.dto';
-import { UpdateBookOriginDto } from './dto/update-book-origin.dto';
-import { UpdateBookDto } from './dto/update-book.dto';
-import { PinoLogger } from 'nestjs-pino';
-import { QueryFailedError } from 'typeorm';
-
-@UseGuards(JwtAccessGuard)
-@Controller('books')
-export class BooksController {
-  constructor(
-    private books: BooksService,
-    private logger: PinoLogger,
-  ) { }
-
-
-  @Post('')
-  async CreateBook(
-    @Request() req,
-    @Body() body: BookSearchResultDto,
-    @Res({ passthrough: true }) response: Response,
-  ) {
-    try {
-      return {
-        success: true,
-        data: await this.books.createBook(body),
-      };
-    } catch (err) {
-      if (err instanceof QueryFailedError) {
-        if (err.driverError.code == '23505') {
-          // Book exists already.
-          response.statusCode = 400;
-          return {
-            success: false,
-            error_message: 'The book has already been added previously.',
-          }
-        }
-      }
-
-      this.logger.error({
-        class: BooksController.name,
-        method: this.CreateBook.name,
-        user: req.user,
-        msg: 'Failed to create book.',
-        error: err,
-      });
-
-      response.statusCode = 500;
-      return {
-        success: false,
-        error_message: 'Something went wrong while adding the book.',
-      }
-    }
-  }
-
-  @Get('')
-  async GetBooksFromUser(
-    @Request() req,
-  ) {
-    return {
-      success: true,
-      data: await this.books.findBookStatusesTrackedBy(req.user.userId),
-    };
-  }
-
-  @Put('')
-  async UpdateBook(
-    @Body() body: UpdateBookDto,
-  ) {
-    const data = { ...body };
-    delete data['bookId'];
-
-    const result = await this.books.updateBook(body.bookId, data);
-    return {
-      success: result?.affected == 1,
-    };
-  }
-
-  @Put('origins')
-  async UpdateBookOrigin(
-    @Body() body: UpdateBookOriginDto,
-  ) {
-    const data = { ...body };
-    delete data['bookOriginId'];
-
-    const result = await this.books.updateBookOrigin(body.bookOriginId, data);
-    return {
-      success: result?.affected == 1,
-    };
-  }
-}

backend/nestjs-seshat-api/src/books/books.module.ts

@@ -1,5 +1,4 @@
 import { Module } from '@nestjs/common';
-import { BooksController } from './books.controller';
 import { BooksService } from './books.service';
 import { BookEntity } from './entities/book.entity';
 import { BookOriginEntity } from './entities/book-origin.entity';
@@ -8,6 +7,9 @@ import { TypeOrmModule } from '@nestjs/typeorm';
 import { HttpModule } from '@nestjs/axios';
 import { ProvidersModule } from 'src/providers/providers.module';
 import { SeriesModule } from 'src/series/series.module';
+import { LibraryService } from 'src/library/library.service';
+import { LibraryModule } from 'src/library/library.module';
+import { BullModule } from '@nestjs/bullmq';
 
 @Module({
   imports: [
@@ -19,11 +21,15 @@ import { SeriesModule } from 'src/series/series.module';
     SeriesModule,
     HttpModule,
     ProvidersModule,
+    LibraryModule,
+    BullModule.registerQueue({
+      name: 'library',
+    }),
   ],
-  controllers: [BooksController],
+  controllers: [],
   exports: [
     BooksService
   ],
-  providers: [BooksService]
+  providers: [BooksService, LibraryService]
 })
 export class BooksModule { }

backend/nestjs-seshat-api/src/books/books.service.ts

@@ -5,13 +5,10 @@ import { In, InsertResult, Repository } from 'typeorm';
 import { BookOriginEntity } from './entities/book-origin.entity';
 import { BookStatusEntity } from './entities/book-status.entity';
 import { UUID } from 'crypto';
-import { PinoLogger } from 'nestjs-pino';
-import { BookSearchResultDto } from 'src/providers/dto/book-search-result.dto';
-import { BookOriginType } from 'src/shared/enums/book_origin_type';
 import { CreateBookDto } from './dto/create-book.dto';
 import { CreateBookOriginDto } from './dto/create-book-origin.dto';
-import { CreateBookStatusDto as BookStatusDto } from './dto/book-status.dto';
+import { CreateBookStatusDto } from './dto/create-book-status.dto';
-import { SeriesService } from 'src/series/series.service';
+import { DeleteBookStatusDto } from './dto/delete-book-status.dto';
 
 @Injectable()
 export class BooksService {
@@ -22,82 +19,10 @@ export class BooksService {
     private bookOriginRepository: Repository<BookOriginEntity>,
     @InjectRepository(BookStatusEntity)
     private bookStatusRepository: Repository<BookStatusEntity>,
-    private series: SeriesService,
-    private logger: PinoLogger,
   ) { }
 
 
-  async createBook(book: BookSearchResultDto) {
+  async createBook(book: CreateBookDto): Promise<InsertResult> {
-    this.logger.debug({
-      class: BooksService.name,
-      method: this.createBook.name,
-      book: book,
-      msg: 'Saving book to database...',
-    });
-
-    if (book.providerSeriesId) {
-      await this.series.updateSeries({
-        providerSeriesId: book.providerSeriesId,
-        title: book.title,
-        provider: book.provider,
-      });
-
-      this.logger.debug({
-        class: BooksService.name,
-        method: this.createBook.name,
-        series: book.providerSeriesId,
-        msg: 'Series saved to database.',
-      });
-    }
-
-    const createBook: CreateBookDto = {
-      title: book.title,
-      desc: book.desc,
-      providerSeriesId: book.providerSeriesId,
-      providerBookId: book.providerBookId,
-      volume: book.volume,
-      provider: book.provider,
-      publishedAt: book.publishedAt,
-    };
-    const data = await this.createBookInternal(createBook);
-    const bookId = data.identifiers[0]['bookId'];
-
-    const tasks = [];
-
-    tasks.push(book.authors.map(author => this.addBookOrigin(bookId, BookOriginType.AUTHOR, author)));
-    tasks.push(book.categories.map(category => this.addBookOrigin(bookId, BookOriginType.CATEGORY, category)));
-    tasks.push(this.addBookOrigin(bookId, BookOriginType.LANGUAGE, book.language));
-    if (book.maturityRating) {
-      tasks.push(this.addBookOrigin(bookId, BookOriginType.MATURITY_RATING, book.maturityRating));
-    }
-    if (book.thumbnail) {
-      tasks.push(this.addBookOrigin(bookId, BookOriginType.PROVIDER_THUMBNAIL, book.thumbnail));
-    }
-    if (book.url) {
-      tasks.push(this.addBookOrigin(bookId, BookOriginType.PROVIDER_URL, book.url));
-    }
-
-    if ('ISBN_10' in book.industryIdentifiers) {
-      tasks.push(this.addBookOrigin(bookId, BookOriginType.ISBN_10, book.industryIdentifiers['ISBN_10']));
-    }
-
-    if ('ISBN_13' in book.industryIdentifiers) {
-      tasks.push(this.addBookOrigin(bookId, BookOriginType.ISBN_10, book.industryIdentifiers['ISBN_13']));
-    }
-
-    await Promise.all(tasks);
-
-    this.logger.info({
-      class: BooksService.name,
-      method: this.createBook.name,
-      book: book,
-      msg: 'Book saved to database.',
-    });
-
-    return bookId;
-  }
-
-  private async createBookInternal(book: CreateBookDto): Promise<InsertResult> {
     const entity = this.bookRepository.create(book);
     return await this.bookRepository.createQueryBuilder()
       .insert()
@@ -107,12 +32,26 @@ export class BooksService {
       .execute();
   }
 
-  async addBookOrigin(bookId: UUID, type: BookOriginType, value: string): Promise<InsertResult> {
+  async addBookOrigin(origin: CreateBookOriginDto): Promise<InsertResult> {
-    return await this.bookOriginRepository.insert({
+    return await this.bookOriginRepository.insert(origin);
-      bookId,
+  }
-      type,
+
-      value,
+  async deleteBookOrigin(origin: CreateBookOriginDto) {
-    });
+    return await this.bookOriginRepository.createQueryBuilder()
+      .delete()
+      .where({
+        whereFactory: origin,
+      })
+      .execute();
+  }
+
+  async deleteBookStatus(status: DeleteBookStatusDto) {
+    return await this.bookStatusRepository.createQueryBuilder()
+      .delete()
+      .where({
+        whereFactory: status,
+      })
+      .execute();
   }
 
   async findBooksByIds(bookIds: UUID[]) {
@@ -120,7 +59,7 @@ export class BooksService {
       where: {
         bookId: In(bookIds)
       }
-    })
+    });
   }
 
   async findBookStatusesTrackedBy(userId: UUID): Promise<BookStatusEntity[]> {
@@ -157,13 +96,12 @@ export class BooksService {
     }, update);
   }
 
-  async updateBookStatus(status: BookStatusDto) {
+  async updateBookStatus(status: CreateBookStatusDto) {
     status.modifiedAt = new Date();
     await this.bookStatusRepository.createQueryBuilder()
       .insert()
       .values(status)
       .orUpdate(['user_id', 'book_id'], ['state', 'modified_at'], { skipUpdateIfNoValuesChanged: true })
       .execute();
-    return await this.bookStatusRepository.upsert(status, ['book_id']);
   }
 }

backend/nestjs-seshat-api/src/books/dto/delete-book-status.dto.ts

@@ -0,0 +1,13 @@
+import { IsNotEmpty, IsOptional, IsUUID } from 'class-validator';
+import { UUID } from 'crypto';
+
+export class DeleteBookStatusDto {
+  @IsUUID()
+  @IsNotEmpty()
+  readonly bookId: UUID;
+
+  @IsUUID()
+  @IsNotEmpty()
+  @IsOptional()
+  readonly userId: UUID;
+}

backend/nestjs-seshat-api/src/library/library.consumer.ts

@@ -0,0 +1,93 @@
+
+import { Processor, WorkerHost } from '@nestjs/bullmq';
+import { Job } from 'bullmq';
+import { PinoLogger } from 'nestjs-pino';
+import { GoogleSearchContext } from 'src/providers/contexts/google.search.context';
+import { BookSearchResultDto } from 'src/providers/dto/book-search-result.dto';
+import { ProvidersService } from 'src/providers/providers.service';
+import { CreateSeriesSubscriptionJobDto } from 'src/series/dto/create-series-subscription-job.dto';
+import { LibraryService } from './library.service';
+
+@Processor('library')
+export class LibraryConsumer extends WorkerHost {
+  constructor(
+    private readonly library: LibraryService,
+    private readonly provider: ProvidersService,
+    private readonly logger: PinoLogger,
+  ) {
+    super();
+  }
+
+  async process(job: Job, token?: string): Promise<any> {
+    console.log('job started:', job.name, job.data, job.id);
+    const series: CreateSeriesSubscriptionJobDto = job.data;
+
+    let context = this.provider.generateSearchContext(series.provider, series.title) as GoogleSearchContext;
+    //context.intitle = series.title;
+    context.maxResults = '40';
+    context.subject = 'Fiction';
+
+    // Search for the book(s) via the provider.
+    // Up until end of results or after 3 unhelpful pages of results.
+    let results = [];
+    let related = [];
+    let pageSearchedCount = 0;
+    let unhelpfulResultsCount = 0;
+    do {
+      pageSearchedCount += 1;
+      results = await this.provider.search(context);
+      const potential = results.filter(r => r.providerSeriesId == series.providerSeriesId || r.title == series.title);
+      if (potential.length > 0) {
+        related.push.apply(related, potential);
+      } else {
+        unhelpfulResultsCount += 1;
+      }
+      context = context.next();
+      job.updateProgress(pageSearchedCount * 5);
+    } while (results.length >= 40 && unhelpfulResultsCount < 3);
+
+    // Sort & de-duplicate the entries received.
+    const books = related.map(book => this.toScore(book, series))
+      .sort((a, b) => a.result.volume - b.result.volume || b.score - a.score)
+      .filter((_, index, arr) => index == 0 || arr[index - 1].result.volume != arr[index].result.volume);
+    job.updateProgress(25);
+
+    let counter = 0;
+    for (let book of books) {
+      try {
+        book.result.providerSeriesId = series.providerSeriesId;
+        await this.library.addBook(book.result);
+      } catch (err) {
+        this.logger.error({
+          class: LibraryConsumer.name,
+          method: this.process.name,
+          book: book.result,
+          score: book.score,
+          msg: 'Failed to add book in background.',
+          error: err,
+        });
+      } finally {
+        counter++;
+        job.updateProgress(25 + 75 * counter / books.length);
+      }
+    }
+
+    console.log('job completed:', job.name, job.data, job.id);
+
+    return null;
+  }
+
+  private toScore(book: BookSearchResultDto, series: CreateSeriesSubscriptionJobDto): ({ result: BookSearchResultDto, score: number }) {
+    if (!book) {
+      return {
+        result: null,
+        score: -1,
+      }
+    }
+
+    return {
+      result: book,
+      score: (!!book.providerSeriesId ? 50 : 0) + (book.title == series.title ? 25 : 0) + (book.url.startsWith('https://play.google.com/store/books/details?') ? 10 : 0),
+    }
+  }
+}

backend/nestjs-seshat-api/src/library/library.controller.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { LibraryController } from './library.controller';
+
+describe('LibraryController', () => {
+  let controller: LibraryController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [LibraryController],
+    }).compile();
+
+    controller = module.get<LibraryController>(LibraryController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

backend/nestjs-seshat-api/src/library/library.controller.ts

@@ -0,0 +1,258 @@
+import { InjectQueue } from '@nestjs/bullmq';
+import { Body, Controller, Delete, Get, Post, Put, Request, Res, UseGuards } from '@nestjs/common';
+import { Response } from 'express';
+import { Queue } from 'bullmq';
+import { PinoLogger } from 'nestjs-pino';
+import { BooksService } from 'src/books/books.service';
+import { BookSearchResultDto } from 'src/providers/dto/book-search-result.dto';
+import { SeriesService } from 'src/series/series.service';
+import { QueryFailedError } from 'typeorm';
+import { UpdateBookDto } from 'src/books/dto/update-book.dto';
+import { UpdateBookOriginDto } from 'src/books/dto/update-book-origin.dto';
+import { LibraryService } from './library.service';
+import { CreateSeriesSubscriptionDto } from 'src/series/dto/create-series-subscription.dto';
+import { JwtAccessGuard } from 'src/auth/guards/jwt-access.guard';
+import { SeriesDto } from 'src/series/dto/series.dto';
+import { CreateBookOriginDto } from 'src/books/dto/create-book-origin.dto';
+import { DeleteBookStatusDto } from 'src/books/dto/delete-book-status.dto';
+
+@UseGuards(JwtAccessGuard)
+@Controller('library')
+export class LibraryController {
+  constructor(
+    private readonly books: BooksService,
+    private readonly series: SeriesService,
+    private readonly library: LibraryService,
+    @InjectQueue('library') private readonly jobs: Queue,
+    private readonly logger: PinoLogger,
+  ) { }
+
+  @Get('series')
+  async getSeries(
+    @Request() req,
+    @Res({ passthrough: true }) response: Response,
+  ) {
+    return {
+      success: true,
+      data: await this.series.getAllSeries(),
+    };
+  }
+
+  @Post('series')
+  async createSeries(
+    @Request() req,
+    @Body() body: CreateSeriesSubscriptionDto,
+    @Res({ passthrough: true }) response: Response,
+  ) {
+    try {
+      await this.library.addSeries({
+        provider: body.provider,
+        providerSeriesId: body.providerSeriesId,
+        title: body.title,
+      });
+
+      return {
+        success: true,
+      };
+    } catch (err) {
+      if (err instanceof QueryFailedError) {
+        if (err.driverError.code == '23505') {
+          // Subscription already exist.
+          response.statusCode = 409;
+          return {
+            success: false,
+            error_message: 'Series subscription already exists.',
+          };
+        }
+      }
+
+      response.statusCode = 500;
+      return {
+        success: false,
+        error_message: 'Something went wrong.',
+      };
+    }
+  }
+
+  @Get('series/subscriptions')
+  async getSeriesSubscriptions(
+    @Request() req,
+    @Res({ passthrough: true }) response: Response,
+  ) {
+    return {
+      success: true,
+      data: await this.series.getSeriesSubscribedBy(req.user.userId),
+    };
+  }
+
+  @Post('series/subscribe')
+  async subscribe(
+    @Request() req,
+    @Body() body: SeriesDto,
+    @Res({ passthrough: true }) response: Response,
+  ) {
+    try {
+      await this.library.addSubscription({
+        ...body,
+        userId: req.user.userId,
+      });
+
+      return {
+        success: true,
+      };
+    } catch (err) {
+      if (err instanceof QueryFailedError) {
+        if (err.driverError.code == '23505') {
+          // Subscription already exists.
+          response.statusCode = 409;
+          return {
+            success: false,
+            error_message: 'Series subscription already exists.',
+          };
+        } else if (err.driverError.code == '23503') {
+          // Series does not exist.
+          response.statusCode = 400;
+          return {
+            success: false,
+            error_message: 'Series does not exist.',
+          };
+        }
+      }
+
+      response.statusCode = 500;
+      return {
+        success: false,
+        error_message: 'Something went wrong.',
+      };
+    }
+  }
+
+  @Get('books')
+  async getBooksFromUser(
+    @Request() req,
+  ) {
+    return {
+      success: true,
+      data: await this.books.findBookStatusesTrackedBy(req.user.userId),
+    };
+  }
+
+  @Post('books')
+  async createBook(
+    @Request() req,
+    @Body() body: BookSearchResultDto,
+    @Res({ passthrough: true }) response: Response,
+  ) {
+    if (body.provider && body.providerSeriesId) {
+      try {
+        await this.series.updateSeries({
+          provider: body.provider,
+          providerSeriesId: body.providerSeriesId,
+          title: body.title,
+        });
+      } catch (err) {
+        if (err instanceof QueryFailedError) {
+          // Ignore if the series already exist.
+          if (err.driverError.code != '23505') {
+            response.statusCode = 500;
+            return {
+              success: false,
+              error_message: 'Something went wrong.',
+            };
+          }
+        }
+      }
+    }
+
+    try {
+      return {
+        success: true,
+        data: await this.books.createBook(body),
+      };
+    } catch (err) {
+      if (err instanceof QueryFailedError) {
+        if (err.driverError.code == '23505') {
+          // Book exists already.
+          response.statusCode = 409;
+          return {
+            success: false,
+            error_message: 'The book has already been added previously.',
+          };
+        } else if (err.driverError.code == '23503') {
+          // Data dependency is missing.
+          response.statusCode = 500;
+          return {
+            success: false,
+            error_message: 'Series has not been added.',
+          };
+        }
+      }
+
+      this.logger.error({
+        class: LibraryController.name,
+        method: this.createBook.name,
+        user: req.user,
+        msg: 'Failed to create book.',
+        error: err,
+      });
+
+      response.statusCode = 500;
+      return {
+        success: false,
+        error_message: 'Something went wrong while adding the book.',
+      };
+    }
+  }
+
+  @Put('books')
+  async updateBook(
+    @Body() body: UpdateBookDto,
+  ) {
+    const data = { ...body };
+    delete data['bookId'];
+
+    const result = await this.books.updateBook(body.bookId, data);
+    return {
+      success: result?.affected == 1,
+    };
+  }
+
+  @Delete('books/origins')
+  async deleteBookOrigin(
+    @Body() body: CreateBookOriginDto,
+  ) {
+    const data = { ...body };
+    delete data['bookOriginId'];
+
+    const result = await this.books.deleteBookOrigin(body);
+    return {
+      success: result?.affected == 1,
+    };
+  }
+
+  @Delete('books/status')
+  async deleteBookStatus(
+    @Body() body: DeleteBookStatusDto,
+  ) {
+    const data = { ...body };
+    delete data['bookOriginId'];
+
+    const result = await this.books.deleteBookStatus(body);
+    return {
+      success: result?.affected == 1,
+    };
+  }
+
+  @Put('books/origins')
+  async updateBookOrigin(
+    @Body() body: UpdateBookOriginDto,
+  ) {
+    const data = { ...body };
+    delete data['bookOriginId'];
+
+    const result = await this.books.updateBookOrigin(body.bookOriginId, data);
+    return {
+      success: result?.affected == 1,
+    };
+  }
+}

backend/nestjs-seshat-api/src/library/library.module.ts

@@ -0,0 +1,37 @@
+import { Module } from '@nestjs/common';
+import { LibraryService } from './library.service';
+import { HttpModule } from '@nestjs/axios';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { BookOriginEntity } from 'src/books/entities/book-origin.entity';
+import { BookStatusEntity } from 'src/books/entities/book-status.entity';
+import { BookEntity } from 'src/books/entities/book.entity';
+import { ProvidersModule } from 'src/providers/providers.module';
+import { SeriesModule } from 'src/series/series.module';
+import { SeriesEntity } from 'src/series/entities/series.entity';
+import { SeriesSubscriptionEntity } from 'src/series/entities/series-subscription.entity';
+import { BooksService } from 'src/books/books.service';
+import { SeriesService } from 'src/series/series.service';
+import { BullModule } from '@nestjs/bullmq';
+import { LibraryConsumer } from './library.consumer';
+import { LibraryController } from './library.controller';
+
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([
+      BookEntity,
+      BookOriginEntity,
+      BookStatusEntity,
+      SeriesEntity,
+      SeriesSubscriptionEntity,
+    ]),
+    BullModule.registerQueue({
+      name: 'library',
+    }),
+    SeriesModule,
+    HttpModule,
+    ProvidersModule,
+  ],
+  providers: [LibraryService, BooksService, SeriesService, LibraryConsumer],
+  controllers: [LibraryController]
+})
+export class LibraryModule { }

backend/nestjs-seshat-api/src/library/library.service.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { LibraryService } from './library.service';
+
+describe('LibraryService', () => {
+  let service: LibraryService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [LibraryService],
+    }).compile();
+
+    service = module.get<LibraryService>(LibraryService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

backend/nestjs-seshat-api/src/library/library.service.ts

@@ -0,0 +1,138 @@
+import { InjectQueue } from '@nestjs/bullmq';
+import { Injectable } from '@nestjs/common';
+import { Queue } from 'bullmq';
+import { PinoLogger } from 'nestjs-pino';
+import { BooksService } from 'src/books/books.service';
+import { CreateBookDto } from 'src/books/dto/create-book.dto';
+import { BookSearchResultDto } from 'src/providers/dto/book-search-result.dto';
+import { CreateSeriesDto } from 'src/series/dto/create-series.dto';
+import { SeriesSubscriptionDto } from 'src/series/dto/series-subscription.dto';
+import { SeriesService } from 'src/series/series.service';
+import { BookOriginType } from 'src/shared/enums/book_origin_type';
+
+@Injectable()
+export class LibraryService {
+  constructor(
+    private readonly books: BooksService,
+    private readonly series: SeriesService,
+    @InjectQueue('library') private readonly jobs: Queue,
+    private readonly logger: PinoLogger,
+  ) { }
+
+
+  async addSeries(series: CreateSeriesDto) {
+    const result = await this.series.addSeries(series);
+
+    this.logger.debug({
+      class: LibraryService.name,
+      method: this.addSubscription.name,
+      series: series.providerSeriesId,
+      msg: 'Series saved to database.',
+    });
+
+    this.jobs.add('new_series', series);
+    return {
+      success: true,
+    };
+  }
+
+  async addSubscription(series: SeriesSubscriptionDto) {
+    return await this.series.addSeriesSubscription({
+      userId: series.userId,
+      providerSeriesId: series.providerSeriesId,
+      provider: series.provider,
+    });
+  }
+
+  async addBook(book: BookSearchResultDto) {
+    this.logger.debug({
+      class: LibraryService.name,
+      method: this.addBook.name,
+      book: book,
+      msg: 'Saving book to database...',
+    });
+
+    const bookData = await this.books.createBook({
+      title: book.title,
+      desc: book.desc,
+      providerSeriesId: book.providerSeriesId,
+      providerBookId: book.providerBookId,
+      volume: book.volume,
+      provider: book.provider,
+      publishedAt: book.publishedAt,
+    });
+    const bookId = bookData.identifiers[0]['bookId'];
+
+    const tasks = [];
+
+    if (book.authors && book.authors.length > 0) {
+      tasks.push(book.authors.map(author => this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.AUTHOR,
+        value: author,
+      })));
+    }
+    if (book.categories && book.categories.length > 0) {
+      tasks.push(book.categories.map(category => this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.CATEGORY,
+        value: category
+      })));
+    }
+    if (book.language) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.LANGUAGE,
+        value: book.language,
+      }));
+    }
+    if (book.maturityRating) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.MATURITY_RATING,
+        value: book.maturityRating,
+      }));
+    }
+    if (book.thumbnail) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.PROVIDER_THUMBNAIL,
+        value: book.thumbnail,
+      }));
+    }
+    if (book.url) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.PROVIDER_URL,
+        value: book.url,
+      }));
+    }
+
+    if ('ISBN_10' in book.industryIdentifiers) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.ISBN_10,
+        value: book.industryIdentifiers['ISBN_10'],
+      }));
+    }
+
+    if ('ISBN_13' in book.industryIdentifiers) {
+      tasks.push(this.books.addBookOrigin({
+        bookId,
+        type: BookOriginType.ISBN_10,
+        value: book.industryIdentifiers['ISBN_13'],
+      }));
+    }
+
+    await Promise.all(tasks);
+
+    this.logger.info({
+      class: LibraryService.name,
+      method: this.addBook.name,
+      book: book,
+      msg: 'Book saved to database.',
+    });
+
+    return bookId;
+  }
+}

backend/nestjs-seshat-api/src/providers/contexts/google.search.context.ts

@@ -1,4 +1,6 @@
-class GoogleSearchContext extends SearchContext {
+import { SearchContext } from "./search.context";
+
+export class GoogleSearchContext extends SearchContext {
   constructor(searchQuery: string, params: { [key: string]: string }) {
     super('google', searchQuery, params);
   }
@@ -19,12 +21,96 @@ class GoogleSearchContext extends SearchContext {
       ...searchParams.map(p => this.params[p] ? p + ':"' + this.params[p] + '"' : ''),
     ].filter(p => p.length > 0).join('');
 
-    return queryParams + '&' + searchQueryParam;
+    return [queryParams, 'q=' + searchQueryParam].filter(q => q.length > 0).join('&');
+  }
+
+  get maxResults(): number {
+    return 'maxResults' in this.params ? parseInt(this.params['maxResults']) : 10;
+  }
+
+  set maxResults(value: string) {
+    if (!value || isNaN(parseInt(value))) {
+      return;
+    }
+
+    this.params['maxResults'] = value;
+  }
+
+  get startIndex(): number {
+    return 'startIndex' in this.params ? parseInt(this.params['startIndex']) : 10;
+  }
+
+  set startIndex(value: string) {
+    if (!value || isNaN(parseInt(value))) {
+      return;
+    }
+
+    this.params['startIndex'] = value;
+  }
+
+  get intitle(): string {
+    return 'intitle' in this.params ? this.params['intitle'] : null;
+  }
+
+  set intitle(value: string) {
+    if (!value) {
+      delete this.params['intitle'];
+    } else {
+      this.params['intitle'] = value;
+    }
+  }
+
+  get inpublisher(): string {
+    return 'inpublisher' in this.params ? this.params['inpublisher'] : null;
+  }
+
+  set inpublisher(value: string) {
+    if (!value) {
+      delete this.params['inpublisher'];
+    } else {
+      this.params['inpublisher'] = value;
+    }
+  }
+
+  get inauthor(): string {
+    return 'inauthor' in this.params ? this.params['inauthor'] : null;
+  }
+
+  set inauthor(value: string) {
+    if (!value) {
+      delete this.params['inauthor'];
+    } else {
+      this.params['inauthor'] = value;
+    }
+  }
+
+  get isbn(): string {
+    return 'isbn' in this.params ? this.params['isbn'] : null;
+  }
+
+  set isbn(value: string) {
+    if (!value) {
+      delete this.params['isbn'];
+    } else {
+      this.params['isbn'] = value;
+    }
+  }
+
+  get subject(): string {
+    return 'subject' in this.params ? this.params['subject'] : null;
+  }
+
+  set subject(value: string) {
+    if (!value) {
+      delete this.params['subject'];
+    } else {
+      this.params['subject'] = value;
+    }
   }
 
   next() {
-    const resultsPerPage = parseInt(this.params['maxResults']) ?? 10;
+    const resultsPerPage = this.params['maxResults'] ? parseInt(this.params['maxResults']) : 10;
-    const index = parseInt(this.params['startIndex']) ?? 0;
+    const index = this.params['startIndex'] ? parseInt(this.params['startIndex']) : 0;
 
     const data = { ...this.params };
     data['startIndex'] = (index + resultsPerPage).toString();

backend/nestjs-seshat-api/src/providers/contexts/search.context.ts

@@ -1,4 +1,4 @@
-abstract class SearchContext {
+export abstract class SearchContext {
   provider: string;
   search: string;
   params: { [key: string]: string };

backend/nestjs-seshat-api/src/providers/google/google.service.ts

@@ -3,6 +3,7 @@ import { BookSearchResultDto } from '../dto/book-search-result.dto';
 import { HttpService } from '@nestjs/axios';
 import { firstValueFrom, map, timeout } from 'rxjs';
 import { AxiosResponse } from 'axios';
+import { GoogleSearchContext } from '../contexts/google.search.context';
 
 @Injectable()
 export class GoogleService {
@@ -11,7 +12,7 @@ export class GoogleService {
   ) { }
 
   async searchRaw(searchQuery: string): Promise<BookSearchResultDto[]> {
-    const queryParams = 'printType=books&maxResults=10&fields=items(kind,id,volumeInfo(title,description,authors,publisher,publishedDate,industryIdentifiers,language,categories,maturityRating,imageLinks,canonicalVolumeLink,seriesInfo))&q=';
+    const queryParams = 'langRestrict=en&printType=books&maxResults=10&fields=items(kind,id,volumeInfo(title,description,authors,publisher,publishedDate,industryIdentifiers,language,categories,maturityRating,imageLinks,canonicalVolumeLink,seriesInfo))&q=';
 
     return await firstValueFrom(
       this.http.get('https://www.googleapis.com/books/v1/volumes?' + queryParams + searchQuery)
@@ -23,14 +24,19 @@ export class GoogleService {
   }
 
   async search(context: GoogleSearchContext): Promise<BookSearchResultDto[]> {
-    const defaultQueryParams = 'printType=books&fields=items(kind,id,volumeInfo(title,description,authors,publisher,publishedDate,industryIdentifiers,language,categories,maturityRating,imageLinks,canonicalVolumeLink,seriesInfo))';
+    if (!context) {
+      return null;
+    }
+
+    const defaultQueryParams = 'langRestrict=en&printType=books&fields=items(kind,id,volumeInfo(title,description,authors,publisher,publishedDate,industryIdentifiers,language,categories,maturityRating,imageLinks,canonicalVolumeLink,seriesInfo))';
     const customQueryParams = context.generateQueryParams();
+    console.log(defaultQueryParams, customQueryParams);
 
     return await firstValueFrom(
       this.http.get('https://www.googleapis.com/books/v1/volumes?' + defaultQueryParams + '&' + customQueryParams)
         .pipe(
           timeout({ first: 5000 }),
-          map(this.transform),
+          map(value => this.transform(value)),
         )
     );
   }
@@ -40,7 +46,9 @@ export class GoogleService {
       return [];
     }
 
-    return response.data.items.map(item => this.extract(item));
+    return response.data.items
+      //.filter(item => item.volumeInfo?.canonicalVolumeLink?.startsWith('https://play.google.com/store/books/details'))
+      .map(item => this.extract(item));
   }
 
   private extract(item: any): BookSearchResultDto {
@@ -49,12 +57,12 @@ export class GoogleService {
       providerSeriesId: item.volumeInfo.seriesInfo?.volumeSeries[0].seriesId,
       title: item.volumeInfo.title,
       desc: item.volumeInfo.description,
-      volume: parseInt(item.volumeInfo.seriesInfo?.bookDisplayNumber),
+      volume: item.volumeInfo.seriesInfo?.bookDisplayNumber ? parseInt(item.volumeInfo.seriesInfo?.bookDisplayNumber, 10) : undefined,
       publisher: item.volumeInfo.publisher,
       authors: item.volumeInfo.authors,
       categories: item.volumeInfo.categories,
       maturityRating: item.volumeInfo.maturityRating,
-      industryIdentifiers: Object.assign({}, ...item.volumeInfo.industryIdentifiers.map(i => ({ [i.type]: i.identifier }))),
+      industryIdentifiers: item.volumeInfo.industryIdentifiers ? Object.assign({}, ...item.volumeInfo.industryIdentifiers.map(i => ({ [i.type]: i.identifier }))) : [],
       publishedAt: new Date(item.volumeInfo.publishedDate),
       language: item.volumeInfo.language,
       thumbnail: item.volumeInfo.imageLinks?.thumbnail,
@@ -62,15 +70,13 @@ export class GoogleService {
       provider: 'google'
     }
 
-    if (result.providerSeriesId) {
     let regex = this.getRegexByPublisher(result.publisher);
 
     const match = result.title.match(regex);
     if (match?.groups) {
       result.title = match.groups['title'].trim();
-        if (!result.volume) {
+      if (!result.volume || isNaN(result.volume)) {
-          result.volume = parseInt(match.groups['volume']);
+        result.volume = parseInt(match.groups['volume'], 10);
-        }
       }
     }
 

backend/nestjs-seshat-api/src/providers/providers.service.ts

@@ -1,6 +1,8 @@
 import { Injectable } from '@nestjs/common';
 import { GoogleService } from './google/google.service';
 import { BookSearchResultDto } from './dto/book-search-result.dto';
+import { GoogleSearchContext } from './contexts/google.search.context';
+import { SearchContext } from './contexts/search.context';
 
 @Injectable()
 export class ProvidersService {
@@ -10,7 +12,7 @@ export class ProvidersService {
 
   generateSearchContext(providerName: string, searchQuery: string): SearchContext | null {
     let params: { [key: string]: string } = {};
-    if (providerName == 'google') {
+    if (providerName.toLowerCase() == 'google') {
       return new GoogleSearchContext(searchQuery, params);
     }
     return null;
@@ -28,7 +30,7 @@ export class ProvidersService {
   async search(context: SearchContext): Promise<BookSearchResultDto[]> {
     switch (context.provider.toLowerCase()) {
       case 'google':
-        return await this.google.search(context);
+        return await this.google.search(context as GoogleSearchContext);
       default:
         throw Error('Invalid provider name.');
     }

backend/nestjs-seshat-api/src/series/dto/create-series-subscription-job.dto.ts

@@ -0,0 +1,8 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+import { SeriesSubscriptionDto } from './series-subscription.dto';
+
+export class CreateSeriesSubscriptionJobDto extends SeriesSubscriptionDto {
+  @IsString()
+  @IsNotEmpty()
+  title: string;
+}

backend/nestjs-seshat-api/src/series/dto/create-series-subscription.dto.ts

@@ -0,0 +1,8 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+import { SeriesDto } from './series.dto';
+
+export class CreateSeriesSubscriptionDto extends SeriesDto {
+  @IsString()
+  @IsNotEmpty()
+  title: string;
+}

backend/nestjs-seshat-api/src/series/dto/create-series.dto.ts

@@ -1,15 +1,8 @@
 import { IsNotEmpty, IsString } from 'class-validator';
+import { SeriesDto } from './series.dto';
 
-export class CreateSeriesDto {
+export class CreateSeriesDto extends SeriesDto {
-  @IsString()
-  @IsNotEmpty()
-  providerSeriesId: string;
-
   @IsString()
   @IsNotEmpty()
   title: string;
-
-  @IsString()
-  @IsNotEmpty()
-  provider: string;
 }

backend/nestjs-seshat-api/src/series/dto/series-subscription.dto.ts

@@ -0,0 +1,9 @@
+import { IsNotEmpty, IsUUID } from 'class-validator';
+import { SeriesDto } from './series.dto';
+import { UUID } from 'crypto';
+
+export class SeriesSubscriptionDto extends SeriesDto {
+  @IsUUID()
+  @IsNotEmpty()
+  userId: UUID;
+}

backend/nestjs-seshat-api/src/series/dto/series.dto.ts

@@ -1,6 +1,6 @@
 import { IsNotEmpty, IsString } from 'class-validator';
 
-export class DeleteSeriesDto {
+export class SeriesDto {
   @IsString()
   @IsNotEmpty()
   providerSeriesId: string;

backend/nestjs-seshat-api/src/series/dto/update-series.dto.ts

@@ -1,20 +1,9 @@
-import { IsNotEmpty, IsString, IsUUID } from 'class-validator';
+import { IsNotEmpty, IsUUID } from 'class-validator';
 import { UUID } from 'crypto';
+import { CreateSeriesDto } from './create-series.dto';
 
-export class UpdateSeriesDto {
+export class UpdateSeriesDto extends CreateSeriesDto {
   @IsUUID()
   @IsNotEmpty()
   seriesId: UUID;
-
-  @IsString()
-  @IsNotEmpty()
-  providerSeriesId: string;
-
-  @IsString()
-  @IsNotEmpty()
-  title: string;
-
-  @IsString()
-  @IsNotEmpty()
-  provider: string;
 }

backend/nestjs-seshat-api/src/series/entities/series-subscription.entity.ts

@@ -0,0 +1,17 @@
+import { UUID } from 'crypto';
+import { Column, Entity, PrimaryColumn, Unique } from 'typeorm';
+
+@Entity("series_subscriptions")
+export class SeriesSubscriptionEntity {
+  @PrimaryColumn({ name: 'user_id', type: 'uuid' })
+  readonly userId: UUID;
+
+  @PrimaryColumn({ name: 'provider_series_id', type: 'text' })
+  providerSeriesId: string;
+
+  @PrimaryColumn({ name: 'provider', type: 'text' })
+  provider: string;
+
+  @Column({ name: 'added_at', type: 'timestamptz', nullable: false })
+  addedAt: Date;
+}

backend/nestjs-seshat-api/src/series/series.module.ts

@@ -4,11 +4,13 @@ import { TypeOrmModule } from '@nestjs/typeorm';
 import { SeriesEntity } from './entities/series.entity';
 import { HttpModule } from '@nestjs/axios';
 import { ProvidersModule } from 'src/providers/providers.module';
+import { SeriesSubscriptionEntity } from './entities/series-subscription.entity';
 
 @Module({
   imports: [
     TypeOrmModule.forFeature([
       SeriesEntity,
+      SeriesSubscriptionEntity,
     ]),
     HttpModule,
     ProvidersModule,

backend/nestjs-seshat-api/src/series/series.service.ts

@@ -2,23 +2,56 @@ import { Injectable } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { SeriesEntity } from './entities/series.entity';
 import { Repository } from 'typeorm';
-import { PinoLogger } from 'nestjs-pino';
 import { CreateSeriesDto } from './dto/create-series.dto';
-import { DeleteSeriesDto } from './dto/delete-series.dto';
+import { SeriesDto } from './dto/series.dto';
+import { SeriesSubscriptionEntity } from './entities/series-subscription.entity';
+import { UUID } from 'crypto';
+import { SeriesSubscriptionDto } from './dto/series-subscription.dto';
 
 @Injectable()
 export class SeriesService {
   constructor(
     @InjectRepository(SeriesEntity)
     private seriesRepository: Repository<SeriesEntity>,
-    private logger: PinoLogger,
+    @InjectRepository(SeriesSubscriptionEntity)
+    private seriesSubscriptionRepository: Repository<SeriesSubscriptionEntity>,
   ) { }
 
 
-  async deleteSeries(series: DeleteSeriesDto) {
+  async addSeries(series: CreateSeriesDto) {
+    return await this.seriesRepository.insert(series);
+  }
+
+  async addSeriesSubscription(series: SeriesSubscriptionDto) {
+    return await this.seriesSubscriptionRepository.insert(series);
+  }
+
+  async deleteSeries(series: SeriesDto) {
     return await this.seriesRepository.delete(series);
   }
 
+  async deleteSeriesSubscription(subscription: SeriesSubscriptionDto) {
+    return await this.seriesSubscriptionRepository.delete(subscription);
+  }
+
+  async getSeries(series: SeriesDto) {
+    return await this.seriesRepository.findOne({
+      where: series
+    })
+  }
+
+  async getAllSeries() {
+    return await this.seriesRepository.find()
+  }
+
+  async getSeriesSubscribedBy(userId: UUID) {
+    return await this.seriesSubscriptionRepository.find({
+      where: {
+        userId,
+      }
+    });
+  }
+
   async updateSeries(series: CreateSeriesDto) {
     return await this.seriesRepository.upsert(series, ['provider', 'providerSeriesId']);
   }