| 1 | import { Injectable } from '@nestjs/common' |
| 2 | import { AssetsService } from '@yikart/assets' |
| 3 | import { FileUtil, TableDto, UserType } from '@yikart/common' |
| 4 | import { Asset, AssetType, Media, MediaRepository, MediaType } from '@yikart/mongodb' |
| 5 | import { config } from '../../config' |
| 6 | import { CreateMediaDto } from './media.dto' |
| 7 | |
| 8 | @Injectable() |
| 9 | export class MediaService { |
| 10 | constructor( |
| 11 | private readonly assetsService: AssetsService, |
| 12 | private readonly mediaRepository: MediaRepository, |
| 13 | ) { } |
| 14 | |
| 15 | async create(userId: string, newData: CreateMediaDto) { |
| 16 | const fullUrl = newData.url.startsWith('http://') || newData.url.startsWith('https://') |
| 17 | ? newData.url |
| 18 | : FileUtil.buildUrl(newData.url) |
| 19 | |
| 20 | const url = new URL(fullUrl) |
| 21 | const isOurStorage = url.origin === config.assets.endpoint |
| 22 | || (config.assets.cdnEndpoint && url.origin === config.assets.cdnEndpoint) |
| 23 | |
| 24 | let asset: Asset | null = null |
| 25 | |
| 26 | if (isOurStorage) { |
| 27 | const objectPath = url.pathname.substring(1) |
| 28 | const existingAsset = await this.assetsService.getByPath(objectPath) |
| 29 | if (existingAsset?.userId === userId) { |
| 30 | asset = existingAsset |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | if (!asset) { |
| 35 | const result = await this.assetsService.uploadFromUrl(userId, { |
| 36 | url: fullUrl, |
| 37 | type: AssetType.UserMedia, |
| 38 | }) |
| 39 | asset = result.asset |
| 40 | } |
| 41 | |
| 42 | return await this.mediaRepository.create({ |
| 43 | ...newData, |
| 44 | userId, |
| 45 | userType: UserType.User, |
| 46 | url: asset.path, |
| 47 | metadata: { |
| 48 | size: asset.size, |
| 49 | mimeType: asset.mimeType, |
| 50 | }, |
| 51 | }) |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * delete media |
| 56 | * @param id |
| 57 | * @returns |
| 58 | */ |
| 59 | async del(id: string) { |
| 60 | const res = await this.mediaRepository.deleteById(id) |
| 61 | return res !== null |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * delete media |
| 66 | * @param ids |
| 67 | * @returns |
| 68 | */ |
| 69 | async delByIds(userId: string, ids: string[]) { |
| 70 | const res = await this.mediaRepository.deleteManyByIds(ids, { |
| 71 | userType: UserType.User, |
| 72 | userId, |
| 73 | }) |
| 74 | return res |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * delete media (TODO: 待优化) |
| 79 | * @param userId |
| 80 | * @param inFilter |
| 81 | * @returns |
| 82 | */ |
| 83 | async delByFilter( |
| 84 | userId: string, |
| 85 | inFilter: { |
| 86 | groupId?: string |
| 87 | type?: MediaType |
| 88 | useCount?: number |
| 89 | }, |
| 90 | ) { |
| 91 | const { groupId, type, useCount } = inFilter |
| 92 | const filter = { |
| 93 | userId, |
| 94 | userType: UserType.User, |
| 95 | ...(groupId && { groupId }), |
| 96 | ...(type && { type }), |
| 97 | ...(useCount !== undefined && { useCount: { $gte: useCount } }), |
| 98 | } |
| 99 | const res = await this.mediaRepository.deleteByFilter(filter) |
| 100 | return res |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * 获取素材信息 |
| 105 | * @param id |
| 106 | * @returns |
| 107 | */ |
| 108 | async getInfo(id: string): Promise<Media | null> { |
| 109 | const res = await this.mediaRepository.getInfo(id) |
| 110 | return res |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * 获取素材列表 |
| 115 | * @param page |
| 116 | * @param filter |
| 117 | * @param filter.userId |
| 118 | * @param filter.groupId |
| 119 | * @param filter.type |
| 120 | * @returns |
| 121 | */ |
| 122 | async getList( |
| 123 | page: TableDto, |
| 124 | filter: { |
| 125 | userId: string |
| 126 | groupId?: string |
| 127 | materialGroupId?: string |
| 128 | type?: MediaType |
| 129 | userType?: UserType |
| 130 | useCount?: number |
| 131 | }, |
| 132 | ) { |
| 133 | const res = await this.mediaRepository.getList(filter, page) |
| 134 | return res |
| 135 | } |
| 136 | |
| 137 | async getListByGroup(groupId: string) { |
| 138 | const res = await this.mediaRepository.getListByGroup(groupId) |
| 139 | return res |
| 140 | } |
| 141 | |
| 142 | async transferToGroup( |
| 143 | userId: string, |
| 144 | ids: string[], |
| 145 | targetGroupId: string, |
| 146 | mode: 'move' | 'copy', |
| 147 | ): Promise<number> { |
| 148 | if (mode === 'move') { |
| 149 | return this.mediaRepository.updateMaterialGroupByIds(ids, targetGroupId, userId) |
| 150 | } |
| 151 | |
| 152 | const mediaList = await this.mediaRepository.listByIdsAndUserId(ids, userId) |
| 153 | if (mediaList.length === 0) { |
| 154 | return 0 |
| 155 | } |
| 156 | |
| 157 | const copies = mediaList.map(({ id: _id, ...media }) => ({ |
| 158 | ...media, |
| 159 | materialGroupId: targetGroupId, |
| 160 | useCount: 0, |
| 161 | })) |
| 162 | const created = await this.mediaRepository.createMany(copies) |
| 163 | return created.length |
| 164 | } |
| 165 | |
| 166 | async addUseCountOfList(userId: string, ids: string[]): Promise<boolean> { |
| 167 | const res = await this.mediaRepository.updateManyUseCountByIds(ids, { |
| 168 | userId, |
| 169 | }) |
| 170 | return res |
| 171 | } |
| 172 | |
| 173 | async updateInfo(id: string, newData: Partial<Media>) { |
| 174 | const oldMedia = await this.mediaRepository.getInfo(id) |
| 175 | if (oldMedia?.url !== newData.url && newData.url) { |
| 176 | const objectPath = newData.url.startsWith('http://') || newData.url.startsWith('https://') |
| 177 | ? FileUtil.trimHost(newData.url) |
| 178 | : newData.url |
| 179 | |
| 180 | const asset = await this.assetsService.getByPath(objectPath) |
| 181 | if (asset) { |
| 182 | newData.metadata = { |
| 183 | size: asset.size, |
| 184 | mimeType: asset.mimeType, |
| 185 | } |
| 186 | |
| 187 | newData.url = objectPath |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | const res = await this.mediaRepository.updateInfo(id, newData) |
| 192 | return res |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * 检查指定组是否为空（不包含任何媒体文件） |
| 197 | * @param groupId 组ID |
| 198 | * @returns 如果组为空返回true，否则返回false |
| 199 | */ |
| 200 | async checkIsEmptyGroup(groupId: string): Promise<boolean> { |
| 201 | const exists = await this.mediaRepository.getIsEmptyByGroup(groupId) |
| 202 | return exists |
| 203 | } |
| 204 | |
| 205 | async addUseCount(id: string): Promise<boolean> { |
| 206 | const res = await this.mediaRepository.updateUseCountById(id) |
| 207 | return res |
| 208 | } |
| 209 | } |
| 210 |