| 1 | import Dexie, { Table } from "dexie"; |
| 2 | import User from "../models/user"; |
| 3 | import axios from "@/lib/axios"; // Move to rust |
| 4 | import { Logger } from "tslog"; |
| 5 | import { AudioFile } from "@/models/audio-file"; |
| 6 | import { ModeDemucs } from "@/models/mode"; |
| 7 | import { Mode } from "fs"; |
| 8 | import { Result } from "@/models/result"; |
| 9 | |
| 10 | // Legacy Spleeter result file |
| 11 | export interface AudioFiles { |
| 12 | id?: number; |
| 13 | audioFileId: string; |
| 14 | type: Mode; |
| 15 | file: Blob; |
| 16 | } |
| 17 | |
| 18 | export enum CurrentUserType { |
| 19 | MAIN, |
| 20 | GUEST, |
| 21 | } |
| 22 | |
| 23 | export interface CurrentUser { |
| 24 | accessToken: string; |
| 25 | type: CurrentUserType; |
| 26 | mode: Mode; |
| 27 | user: User; |
| 28 | } |
| 29 | |
| 30 | // Splitfire result file |
| 31 | interface ResultFile { |
| 32 | id?: number; |
| 33 | audioFileId: number; |
| 34 | type: ModeDemucs; |
| 35 | buffer: ArrayBuffer; |
| 36 | blobType: string; |
| 37 | } |
| 38 | |
| 39 | export interface BlobFile { |
| 40 | file: Blob; |
| 41 | mode: ModeDemucs; |
| 42 | } |
| 43 | |
| 44 | export class SplitfireDB extends Dexie { |
| 45 | audioFiles!: Table<AudioFiles>; |
| 46 | resultFiles!: Table<ResultFile>; |
| 47 | currentUser!: Table<CurrentUser>; |
| 48 | |
| 49 | log = new Logger({ |
| 50 | name: "SplitfireDB", |
| 51 | type: "json", |
| 52 | }); |
| 53 | |
| 54 | constructor() { |
| 55 | super("splitfireDB"); |
| 56 | this.version(10).stores({ |
| 57 | audioFiles: "++id, [audioFileId+type]", // This is when I was using Spleeter |
| 58 | resultFiles: "++id, [audioFileId+type]", // This is when I was using Demucs |
| 59 | currentUser: "++id, [userId+type], type", |
| 60 | }); |
| 61 | } |
| 62 | |
| 63 | // The public interface to get the blob result files. |
| 64 | // It takes the audio file and then compute the modes from the results field. |
| 65 | async getResultFiles(audioFile: AudioFile): Promise<BlobFile[]> { |
| 66 | return new Promise(async (resolve, reject) => { |
| 67 | try { |
| 68 | // Check modes of results |
| 69 | const modes: ModeDemucs[] = audioFile.results.map( |
| 70 | (result) => result.filename.split("-").shift() as ModeDemucs |
| 71 | ); |
| 72 | |
| 73 | this.log.error("modes", modes); |
| 74 | let resultFiles: BlobFile[] = []; |
| 75 | // Check if we have result file in the db |
| 76 | for (const mode of modes) { |
| 77 | const result = await this._getResultFile(audioFile, mode); |
| 78 | resultFiles.push(result); |
| 79 | } |
| 80 | this.log.debug("resultFiles", resultFiles); |
| 81 | resolve(resultFiles); |
| 82 | } catch (error) { |
| 83 | this.log.error(error); |
| 84 | reject(error); |
| 85 | } |
| 86 | }); |
| 87 | } |
| 88 | |
| 89 | async _getResultFile( |
| 90 | audioFile: AudioFile, |
| 91 | mode: ModeDemucs |
| 92 | ): Promise<BlobFile> { |
| 93 | return new Promise(async (resolve, reject) => { |
| 94 | try { |
| 95 | // Check if we have result file in the db |
| 96 | const result = await db.resultFiles.get({ |
| 97 | audioFileId: audioFile.id, |
| 98 | type: mode, |
| 99 | }); |
| 100 | // if we do, then return it |
| 101 | this.log.debug("_getResultFile", result); |
| 102 | if (result?.buffer) { |
| 103 | const blob = new Blob([result.buffer], { type: result.blobType }); |
| 104 | resolve({ file: blob, mode }); |
| 105 | } else { |
| 106 | // otherwise, download the file and return it |
| 107 | const file = await this._downloadFile(audioFile, mode); |
| 108 | resolve({ file, mode }); |
| 109 | } |
| 110 | } catch (error) { |
| 111 | reject(error); |
| 112 | } |
| 113 | }); |
| 114 | } |
| 115 | |
| 116 | async _downloadFile(audioFile: AudioFile, type: ModeDemucs): Promise<Blob> { |
| 117 | this.log.debug("_downloadFile", type); |
| 118 | let result: Result | undefined; |
| 119 | switch (type) { |
| 120 | case ModeDemucs.Vocals: |
| 121 | result = audioFile.results.find((obj) => { |
| 122 | return obj.filename.startsWith("vocals"); |
| 123 | }); |
| 124 | break; |
| 125 | case ModeDemucs.Bass: |
| 126 | result = audioFile?.results.find((obj) => { |
| 127 | return obj.filename.startsWith("bass"); |
| 128 | }); |
| 129 | break; |
| 130 | case ModeDemucs.Drums: |
| 131 | result = audioFile?.results.find((obj) => { |
| 132 | return obj.filename.startsWith("drums"); |
| 133 | }); |
| 134 | break; |
| 135 | case ModeDemucs.Other: |
| 136 | result = audioFile?.results.find((obj) => { |
| 137 | return obj.filename.startsWith("other"); |
| 138 | }); |
| 139 | break; |
| 140 | } |
| 141 | |
| 142 | this.log.debug("Download url", result?.source_file); |
| 143 | |
| 144 | return new Promise(async (resolve, reject) => { |
| 145 | try { |
| 146 | const response = await axios({ |
| 147 | url: result?.source_file, |
| 148 | method: "GET", |
| 149 | responseType: "blob", |
| 150 | }); |
| 151 | const blob = new Blob([response.data], { type: "audio/mp3" }); |
| 152 | const buffer = await blob.arrayBuffer(); |
| 153 | const item: ResultFile = { |
| 154 | audioFileId: audioFile.id, |
| 155 | type: type, |
| 156 | buffer: buffer, |
| 157 | blobType: blob.type, |
| 158 | }; |
| 159 | db.resultFiles.add(item); |
| 160 | resolve(blob); |
| 161 | } catch (error) { |
| 162 | this.log.error(error); |
| 163 | reject(error); |
| 164 | } |
| 165 | }); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | export const db = new SplitfireDB(); |