play with parse pdf’s

services/cron-jobs/parse-pdf/.dockerignore

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+node_modules
+build

services/cron-jobs/parse-pdf/.gitignore

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+node_modules
+build

services/cron-jobs/parse-pdf/Dockerfile

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+FROM node:12-alpine AS BUILD_IMAGE
+
+# install next-optimized-images requirements
+RUN apk --no-cache update \ 
+    && apk --no-cache add curl bash \
+    &&  rm -fr /var/cache/apk/*
+
+# install node-prune (https://github.com/tj/node-prune)
+RUN curl -sfL https://install.goreleaser.com/github.com/tj/node-prune.sh | bash -s -- -b /usr/local/bin
+
+WORKDIR /app
+COPY package.json yarn.lock ./
+RUN yarn --frozen-lockfile
+COPY . .
+
+RUN yarn build
+
+RUN npm prune --production
+
+# run node prune
+RUN /usr/local/bin/node-prune
+
+FROM node:12-alpine
+
+WORKDIR /app
+
+COPY . .
+
+# copy from build image
+COPY --from=BUILD_IMAGE /app/build ./build
+COPY --from=BUILD_IMAGE /app/node_modules ./node_modules
+
+ENV NODE_ENV=production
+
+ENTRYPOINT [ "yarn", "start" ]

services/cron-jobs/parse-pdf/Dockerfile.dev

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+FROM node:12-alpine
+
+RUN apk --no-cache update \ 
+    && apk --no-cache add git \
+    &&  rm -fr /var/cache/apk/*
+
+WORKDIR /app
+COPY package.json yarn.lock ./
+RUN yarn --frozen-lockfile
+
+COPY . .
+
+ENV NODE_ENV=development
+
+ENTRYPOINT [ "yarn", "dev" ]

services/cron-jobs/parse-pdf/package.json

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+{
+  "name": "push-send-queued",
+  "version": "0.1.6",
+  "main": "build/index.js",
+  "license": "Apache-2.0",
+  "scripts": {
+    "dev": "ts-node-dev ./src/index",
+    "lint": "yarn lint:ts && yarn lint:exports",
+    "lint:ts": "tsc --noEmit",
+    "lint:exports": "ts-unused-exports ./tsconfig.json --excludePathsFromReport=generated --excludePathsFromReport=resolvers --excludePathsFromReport=/schemas",
+    "build": "tsc",
+    "start": "node ./build/index.js",
+    "apollo:codegen": "apollo client:codegen --target typescript --globalTypesFile=./src/__generated__/globalTypes.ts"
+  },
+  "dependencies": {
+    "@democracy-deutschland/bundestagio-common": "^0.1.7",
+    "brain.js": "^2.0.0-beta.1",
+    "pdf2json": "^1.2.0"
+  },
+  "devDependencies": {
+    "ts-node-dev": "^1.0.0-pre.49",
+    "ts-unused-exports": "^6.2.1",
+    "typescript": "^3.9.5"
+  }
+}

services/cron-jobs/parse-pdf/src/@types/pdf2json/index.d.ts

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+declare class Pdf2Json {
+  constructor() {}
+  loadPDF(path: string): void;
+  on(event: "pdfParser_dataReady", cb: (data: any) => void): void;
+}
+
+declare module "pdf2json" {
+  export = Pdf2Json;
+  export interface TextBlock {
+    x: number;
+    y: number;
+    w: number;
+    sw: number;
+    clr: number;
+    A: "left" | "center" | "right";
+    R: [
+      {
+        T: string;
+        S: number;
+        TS: [number, number, 0 | 1, 0 | 1];
+      }
+    ];
+  }
+}

services/cron-jobs/parse-pdf/src/index.ts

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+import mongoConnect from "./mongoose";
+import fs from "fs";
+import http from "http";
+import PDFParser, { TextBlock } from "pdf2json";
+
+declare function unescape(s: string): string;
+
+import { ProcedureModel } from "@democracy-deutschland/bundestagio-common";
+
+const httpOptions: http.RequestOptions = {
+  headers: { "User-Agent": "Mozilla/5.0" },
+};
+
+const download = async (url: string, dest: string): Promise<string> => {
+  var file = fs.createWriteStream(dest);
+  return new Promise((resolve, reject) => {
+    http
+      .get(url, httpOptions, (response) => {
+        response.pipe(file);
+        file.on("finish", function () {
+          resolve(dest);
+        });
+      })
+      .on("error", function (err) {
+        // Handle errors
+        fs.unlink(dest, () => {}); // Delete the file async. (But we don't check the result)
+        reject(err);
+      });
+  });
+};
+
+const start = async () => {
+  console.log("START PARSER");
+  const procedure = await ProcedureModel.findOne({});
+  if (procedure) {
+    const document = procedure.importantDocuments[0];
+    // const path = await download(
+    //   document.url,
+    //   `/tmp/${document.number.replace("/", "0")}.pdf`
+    // );
+    const path = "/tmp/1901596.pdf";
+    console.log(path);
+    const pdfParser = new PDFParser();
+    pdfParser.loadPDF(path);
+    pdfParser.on("pdfParser_dataReady", (data) => {
+      const page = data.formImage.Pages[1];
+
+      // data.formImage.Pages.forEach((page: any) => {
+      const texts = page.Texts as any[];
+      console.log(texts);
+      // });
+    });
+  }
+  console.log("DONE PARSER");
+};
+
+(async () => {
+  console.info("START");
+  console.info("process.env", process.env.DB_URL);
+  if (!process.env.DB_URL) {
+    throw new Error("you have to set environment variable: DB_URL");
+  }
+  await mongoConnect();
+  console.log("procedures", await ProcedureModel.countDocuments({}));
+  await start().catch(() => process.exit(1));
+  // process.exit(0);
+})();

services/cron-jobs/parse-pdf/src/index_positions.ts

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+import mongoConnect from "./mongoose";
+import fs from "fs";
+import http from "http";
+import PDFParser, { TextBlock } from "pdf2json";
+
+declare function unescape(s: string): string;
+
+import { ProcedureModel } from "@democracy-deutschland/bundestagio-common";
+
+const httpOptions: http.RequestOptions = {
+  headers: { "User-Agent": "Mozilla/5.0" },
+};
+
+const download = async (url: string, dest: string): Promise<string> => {
+  var file = fs.createWriteStream(dest);
+  return new Promise((resolve, reject) => {
+    http
+      .get(url, httpOptions, (response) => {
+        response.pipe(file);
+        file.on("finish", function () {
+          resolve(dest);
+        });
+      })
+      .on("error", function (err) {
+        // Handle errors
+        fs.unlink(dest, () => {}); // Delete the file async. (But we don't check the result)
+        reject(err);
+      });
+  });
+};
+
+const start = async () => {
+  console.log("START PARSER");
+  const procedure = await ProcedureModel.findOne({});
+  if (procedure) {
+    const document = procedure.importantDocuments[0];
+    // const path = await download(
+    //   document.url,
+    //   `/tmp/${document.number.replace("/", "0")}.pdf`
+    // );
+    const path = "/tmp/1901596.pdf";
+    console.log(path);
+    const pdfParser = new PDFParser();
+    pdfParser.loadPDF(path);
+    pdfParser.on("pdfParser_dataReady", (data) => {
+      const page = data.formImage.Pages[0];
+      fs.writeFileSync(`${path}.json`, page);
+
+      // data.formImage.Pages.forEach((page: any) => {
+      const texts = page.Texts as any[];
+      const textBlocks: string[] = [];
+      let tmpText: string;
+      texts.forEach((textBlock: TextBlock, index) => {
+        const text = decodeURIComponent(textBlock.R[0].T);
+
+        if (index === 0) {
+          tmpText = text;
+          return;
+        }
+        const prevText = texts[index - 1];
+        if (index < 10) {
+          console.log(
+            text,
+            textBlock,
+            textBlock.x + textBlock.sw - (prevText.x + prevText.w)
+          );
+        }
+        if (
+          textBlock.x <= prevText.x + prevText.w + 0.1 &&
+          textBlock.y < prevText.y + 1
+        ) {
+          const space =
+            textBlock.y > 5 || textBlock.x - (prevText.x + prevText.w) > 0
+              ? " "
+              : "";
+          tmpText += space + text;
+          if (index === texts.length - 1) {
+            textBlocks.push(tmpText);
+          }
+        } else {
+          textBlocks.push(tmpText);
+          tmpText = text;
+        }
+      });
+      console.log(textBlocks);
+      // });
+    });
+  }
+  console.log("DONE PARSER");
+};
+
+(async () => {
+  console.info("START");
+  console.info("process.env", process.env.DB_URL);
+  if (!process.env.DB_URL) {
+    throw new Error("you have to set environment variable: DB_URL");
+  }
+  await mongoConnect();
+  console.log("procedures", await ProcedureModel.countDocuments({}));
+  await start().catch(() => process.exit(1));
+  // process.exit(0);
+})();

services/cron-jobs/parse-pdf/src/mongoose.ts

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+import { mongoose } from "@democracy-deutschland/bundestagio-common";
+export default () =>
+  new Promise(async (resolve, reject) => {
+    mongoose.set("useFindAndModify", false);
+    // Mongo Debug
+    mongoose.set("debug", false);
+
+    mongoose.connect(process.env.DB_URL!, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+    });
+
+    mongoose.connection.once("connected", () => {
+      console.info("MongoDB is running");
+      resolve();
+    });
+    mongoose.connection.on("error", (e: Error) => {
+      // Unknown if this ends up in main - therefore we log here
+      console.error(e.stack);
+      throw e;
+    });
+  });

services/cron-jobs/parse-pdf/tsconfig.json

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+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */,
+    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */,
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "outDir": "./build" /* Redirect output structure to the directory. */,
+    "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true /* Enable all strict type-checking options. */,
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./src/" /* Base directory to resolve non-absolute module names. */,
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    "typeRoots": [
+      "./src/@types",
+      "./node_modules/@types"
+    ] /* List of folders to include type definitions from. */,
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "skipLibCheck": true /* Skip type checking of declaration files. */,
+    "forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
+  }
+}