Merge branch 'main' into Work10

Author: DavisD251

lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/dataprovider/ChanelHuttProvider.java

@@ -0,0 +1,22 @@
+package com.codedifferently.lesson9.dataprovider;
+
+import java.util.Map;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ChanelHuttProvider extends DataProvider {
+  public String getProviderName() {
+    return "chanelhutt";
+  }
+
+  public Map<String, Class> getColumnTypeByName() {
+    return Map.of(
+        "column1", Double.class,
+        "column2", Short.class,
+        "column3", Integer.class,
+        "column4", String.class,
+        "column5", Long.class,
+        "column6", Boolean.class,
+        "column7", Float.class);
+  }
+}

lesson_09/types/types_app/src/main/resources/data/chanelhutt.json

@@ -0,0 +1,92 @@
+[
+  {
+    "column1": "1.731075412920716E308",
+    "column2": "19176",
+    "column3": "733205455",
+    "column4": "haxpw7g",
+    "column5": "1157940937089738496",
+    "column6": "false",
+    "column7": "2.459581E37"
+  },
+  {
+    "column1": "2.2465348083056824E307",
+    "column2": "21719",
+    "column3": "1332875183",
+    "column4": "ev5bksjy7mz3",
+    "column5": "2433500635024735232",
+    "column6": "false",
+    "column7": "1.0160553E38"
+  },
+  {
+    "column1": "9.114475329125451E306",
+    "column2": "22876",
+    "column3": "1941625523",
+    "column4": "0umiwpak",
+    "column5": "2117973580872942080",
+    "column6": "false",
+    "column7": "1.7494759E38"
+  },
+  {
+    "column1": "1.228449265255592E307",
+    "column2": "21165",
+    "column3": "1604518885",
+    "column4": "tnecirkhowg",
+    "column5": "8671624959944894464",
+    "column6": "false",
+    "column7": "3.4007451E38"
+  },
+  {
+    "column1": "3.900189719800849E307",
+    "column2": "861",
+    "column3": "133068872",
+    "column4": "6yt2rpo8egs7",
+    "column5": "2144446409450103040",
+    "column6": "true",
+    "column7": "2.6716434E38"
+  },
+  {
+    "column1": "1.6560886655049307E308",
+    "column2": "30429",
+    "column3": "1200814099",
+    "column4": "slo4b",
+    "column5": "4165282877190061568",
+    "column6": "false",
+    "column7": "1.2459889E38"
+  },
+  {
+    "column1": "2.3503323112186533E307",
+    "column2": "4738",
+    "column3": "1211063412",
+    "column4": "39ghf5n04",
+    "column5": "8351477286928983040",
+    "column6": "true",
+    "column7": "1.5175942E38"
+  },
+  {
+    "column1": "1.0540459020911906E306",
+    "column2": "5685",
+    "column3": "1214520000",
+    "column4": "y65w912l47",
+    "column5": "6563929531867928576",
+    "column6": "true",
+    "column7": "1.7849906E38"
+  },
+  {
+    "column1": "3.686407320819559E307",
+    "column2": "28996",
+    "column3": "1411969638",
+    "column4": "t0jg47n1vz",
+    "column5": "6811264016170342400",
+    "column6": "false",
+    "column7": "3.0525288E38"
+  },
+  {
+    "column1": "7.473392367859956E307",
+    "column2": "15836",
+    "column3": "1137183814",
+    "column4": "95qrap07h",
+    "column5": "516976948379531328",
+    "column6": "true",
+    "column7": "7.8719054E37"
+  }
+]

lesson_10/libraries/src/loaders/loaders.module.ts

@@ -3,13 +3,15 @@ import { Module } from '@nestjs/common';
 import { AnthonyMaysLoader } from './anthony_mays_loader.js';
 import { DavisDLoader } from './davis_d_loader.js';
 import { DylanLaffertysLoader } from './dylan_lafferty_loaders.js';
+import { MercedesMathewsLoader } from './mercedes_mathews_loader.js';
 
 export const Loaders = Symbol.for('Loaders');
 
 const LOADER_PROVIDERS = [
   AnthonyMaysLoader,
   DylanLaffertysLoader,
   DavisDLoader,
+  MercedesMathewsLoader,
 ];
 
 @Module({

lesson_10/libraries/src/loaders/mercedes_mathews_loader.ts

@@ -0,0 +1,58 @@
+import csv from 'csv-parser';
+import fs from 'fs';
+import { Credit, MediaItem } from '../models/index.js';
+import { Loader } from './loader.js';
+
+export class MercedesMathewsLoader implements Loader {
+  getLoaderName(): string {
+    return 'mercedesmathews';
+  }
+
+  async loadData(): Promise<MediaItem[]> {
+    const credits = await this.loadCredits();
+    const mediaItems = await this.loadMediaItems();
+
+    const mediaMap = new Map<string, MediaItem>();
+    for (const media of mediaItems) {
+      mediaMap.set(media.getId(), media);
+    }
+
+    for (const credit of credits) {
+      const mediaItem = mediaMap.get(credit.getMediaItemId());
+      if (mediaItem) {
+        mediaItem.addCredit(credit);
+      }
+    }
+
+    console.log(
+      `Loaded ${credits.length} credits and ${mediaItems.length} media items`,
+    );
+
+    console.log(...mediaItems.values());
+    return [...mediaItems.values()];
+  }
+
+  async loadMediaItems(): Promise<MediaItem[]> {
+    const medias = [];
+    const readable = fs
+      .createReadStream('data/media_items.csv', 'utf-8')
+      .pipe(csv());
+    for await (const row of readable) {
+      const { id, title, type, year } = row;
+      medias.push(new MediaItem(id, title, type, year, []));
+    }
+    return medias;
+  }
+
+  async loadCredits(): Promise<Credit[]> {
+    const credits = [];
+    const readable = fs
+      .createReadStream('data/credits.csv', 'utf-8')
+      .pipe(csv());
+    for await (const row of readable) {
+      const { media_item_id, role, name } = row;
+      credits.push(new Credit(media_item_id, name, role));
+    }
+    return credits;
+  }
+}