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| 1 | +import * as admin from 'firebase-admin'; |
| 2 | + |
| 3 | +import {Deck, DeckData} from '../../model/deck'; |
| 4 | + |
| 5 | +import {DeckSlides, deleteSlides, findSlides} from './utils/delete-slides-utils'; |
| 6 | + |
| 7 | +export async function deleteDecksSlides(userRecord: admin.auth.UserRecord) { |
| 8 | + if (!userRecord || !userRecord.uid || userRecord.uid === undefined || userRecord.uid === '') { |
| 9 | + return; |
| 10 | + } |
| 11 | + |
| 12 | + try { |
| 13 | + const userId: string = userRecord.uid; |
| 14 | + |
| 15 | + const decks: Deck[] | null = await findDecks(userId); |
| 16 | + |
| 17 | + if (!decks || decks.length <= 0) { |
| 18 | + return; |
| 19 | + } |
| 20 | + |
| 21 | + const decksSlides: (DeckSlides | null)[] = await findAllSlides(decks); |
| 22 | + |
| 23 | + if (!decksSlides || decksSlides.length <= 0) { |
| 24 | + await deleteDecks(decks); |
| 25 | + return; |
| 26 | + } |
| 27 | + |
| 28 | + await deleteAllSlides(decksSlides); |
| 29 | + |
| 30 | + await deleteDecks(decks); |
| 31 | + |
| 32 | + } catch (err) { |
| 33 | + console.error(err); |
| 34 | + } |
| 35 | +} |
| 36 | + |
| 37 | +function findDecks(userId: string): Promise<Deck[] | null> { |
| 38 | + return new Promise<Deck[] | null>(async (resolve, reject) => { |
| 39 | + try { |
| 40 | + const collectionRef: admin.firestore.CollectionReference = admin.firestore().collection('/decks/'); |
| 41 | + |
| 42 | + const snapShot: admin.firestore.QuerySnapshot = await collectionRef |
| 43 | + .where('owner_id', '==', userId) |
| 44 | + .get(); |
| 45 | + |
| 46 | + if (snapShot && snapShot.docs && snapShot.docs.length > 0) { |
| 47 | + const decks: Deck[] = snapShot.docs.map((doc) => { |
| 48 | + const data: Object = doc.data() as DeckData; |
| 49 | + const id = doc.id; |
| 50 | + const ref = doc.ref; |
| 51 | + |
| 52 | + return { |
| 53 | + id: id, |
| 54 | + ref: ref, |
| 55 | + data: data |
| 56 | + } as Deck; |
| 57 | + }); |
| 58 | + |
| 59 | + resolve(decks); |
| 60 | + } else { |
| 61 | + resolve(null); |
| 62 | + } |
| 63 | + } catch (err) { |
| 64 | + reject(err); |
| 65 | + } |
| 66 | + }) |
| 67 | +} |
| 68 | + |
| 69 | +function findAllSlides(decks: Deck[]): Promise<(DeckSlides | null)[]> { |
| 70 | + return new Promise<(DeckSlides | null)[]>(async (resolve, reject) => { |
| 71 | + try { |
| 72 | + const promises: Promise<DeckSlides | null>[] = []; |
| 73 | + decks.forEach((deck: Deck) => { |
| 74 | + promises.push(findSlides(deck.id)); |
| 75 | + }); |
| 76 | + |
| 77 | + if (!promises || promises.length <= 0) { |
| 78 | + resolve([]); |
| 79 | + return; |
| 80 | + } |
| 81 | + |
| 82 | + const slides: (DeckSlides | null)[] = await Promise.all(promises); |
| 83 | + resolve(slides); |
| 84 | + } catch (err) { |
| 85 | + reject(err); |
| 86 | + } |
| 87 | + }); |
| 88 | +} |
| 89 | + |
| 90 | +function deleteAllSlides(decksSlides: (DeckSlides | null)[]): Promise<void> { |
| 91 | + return new Promise<void>(async (resolve, reject) => { |
| 92 | + try { |
| 93 | + if (!decksSlides || decksSlides.length <= 0) { |
| 94 | + resolve(); |
| 95 | + return; |
| 96 | + } |
| 97 | + |
| 98 | + const promises: Promise<void>[] = []; |
| 99 | + decksSlides.forEach((deckSlides: DeckSlides | null) => { |
| 100 | + if (deckSlides) { |
| 101 | + promises.push(deleteSlides(deckSlides.deckId, deckSlides.slides)); |
| 102 | + } |
| 103 | + }); |
| 104 | + |
| 105 | + if (promises && promises.length > 0) { |
| 106 | + await Promise.all(promises); |
| 107 | + } |
| 108 | + |
| 109 | + resolve(); |
| 110 | + } catch (err) { |
| 111 | + reject(err); |
| 112 | + } |
| 113 | + }); |
| 114 | +} |
| 115 | + |
| 116 | +function deleteDecks(decks: Deck[]): Promise<void> { |
| 117 | + return new Promise<void>(async (resolve, reject) => { |
| 118 | + try { |
| 119 | + if (!decks || decks.length <= 0) { |
| 120 | + resolve(); |
| 121 | + return; |
| 122 | + } |
| 123 | + |
| 124 | + const promises: Promise<void>[] = []; |
| 125 | + decks.forEach((deck: Deck) => { |
| 126 | + promises.push(deleteDeck(deck)); |
| 127 | + }); |
| 128 | + |
| 129 | + if (promises && promises.length > 0) { |
| 130 | + await Promise.all(promises); |
| 131 | + } |
| 132 | + |
| 133 | + resolve(); |
| 134 | + } catch (err) { |
| 135 | + reject(err); |
| 136 | + } |
| 137 | + }); |
| 138 | +} |
| 139 | + |
| 140 | +function deleteDeck(deck: Deck): Promise<void> { |
| 141 | + return new Promise<void>(async (resolve, reject) => { |
| 142 | + try { |
| 143 | + if (!deck || !deck.id || deck.id === undefined || deck.id === '') { |
| 144 | + resolve(); |
| 145 | + return; |
| 146 | + } |
| 147 | + |
| 148 | + const collectionRef: admin.firestore.CollectionReference = admin.firestore().collection(`/decks/`); |
| 149 | + const doc: admin.firestore.DocumentReference = collectionRef.doc(deck.id); |
| 150 | + |
| 151 | + await doc.delete(); |
| 152 | + |
| 153 | + resolve(); |
| 154 | + } catch (err) { |
| 155 | + reject(err); |
| 156 | + } |
| 157 | + }); |
| 158 | +} |
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