| 1 | import { Injectable, Logger } from '@nestjs/common' |
| 2 | import { AssetsService, VideoMetadataService } from '@yikart/assets' |
| 3 | import { AccountType, FileUtil, TableDto, UserType } from '@yikart/common' |
| 4 | import { AssetType, Material, MaterialRepository, MaterialStatus, MaterialType, MediaType } from '@yikart/mongodb' |
| 5 | import { NewMaterial, UpMaterial } from './common' |
| 6 | import { MediaService } from './media.service' |
| 7 | |
| 8 | @Injectable() |
| 9 | export class MaterialService { |
| 10 | private readonly logger = new Logger(MaterialService.name) |
| 11 | |
| 12 | constructor( |
| 13 | private readonly materialRepository: MaterialRepository, |
| 14 | private readonly mediaService: MediaService, |
| 15 | private readonly videoMetadataService: VideoMetadataService, |
| 16 | private readonly assetsService: AssetsService, |
| 17 | ) { } |
| 18 | |
| 19 | async create(newData: NewMaterial) { |
| 20 | const dataWithCover = await this.ensureVideoCover(newData) |
| 21 | const res = await this.materialRepository.create(dataWithCover) |
| 22 | return res |
| 23 | } |
| 24 | |
| 25 | /** |
| 26 | * 视频类型草稿无封面时，自动从视频截帧生成封面 |
| 27 | */ |
| 28 | private async ensureVideoCover(data: NewMaterial): Promise<NewMaterial> { |
| 29 | if (data.type !== MaterialType.VIDEO || data.coverUrl) { |
| 30 | return data |
| 31 | } |
| 32 | |
| 33 | const videoMedia = data.mediaList.find( |
| 34 | m => m.type === MediaType.VIDEO && m.url, |
| 35 | ) |
| 36 | if (!videoMedia) { |
| 37 | return data |
| 38 | } |
| 39 | |
| 40 | try { |
| 41 | const fullUrl = FileUtil.buildUrl(videoMedia.url) |
| 42 | const thumbnailBuffer = await this.videoMetadataService.extractThumbnailFromUrl(fullUrl, 2) |
| 43 | const uploadResult = await this.assetsService.uploadFromBuffer(data.userId, thumbnailBuffer, { |
| 44 | type: AssetType.VideoThumbnail, |
| 45 | mimeType: 'image/png', |
| 46 | filename: 'thumbnail.png', |
| 47 | }) |
| 48 | const coverUrl = uploadResult.asset.path |
| 49 | |
| 50 | return { |
| 51 | ...data, |
| 52 | coverUrl, |
| 53 | mediaList: data.mediaList.map(m => |
| 54 | m === videoMedia ? { ...m, thumbUrl: m.thumbUrl || coverUrl } : m, |
| 55 | ), |
| 56 | } |
| 57 | } |
| 58 | catch (error) { |
| 59 | this.logger.warn({ error }, 'Failed to extract video thumbnail for cover, proceeding without cover') |
| 60 | return data |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | async del(id: string) { |
| 65 | const material = await this.getInfo(id) |
| 66 | if (!material) |
| 67 | return true |
| 68 | const res = await this.materialRepository.deleteById(id) |
| 69 | if (!res) |
| 70 | return false |
| 71 | if (material.autoDeleteMedia) { |
| 72 | for (const item of material.mediaList) { |
| 73 | if (!item.mediaId) |
| 74 | continue |
| 75 | this.mediaService.del(item.mediaId) |
| 76 | } |
| 77 | } |
| 78 | return res |
| 79 | } |
| 80 | |
| 81 | async delByIds(userId: string, ids: string[]): Promise<boolean> { |
| 82 | const res = await this.materialRepository.deleteManyByIds(ids, { userId }) |
| 83 | return res |
| 84 | } |
| 85 | |
| 86 | async delByFilter( |
| 87 | userId: string, |
| 88 | inFilter: { |
| 89 | title?: string |
| 90 | groupId?: string |
| 91 | status?: MaterialStatus |
| 92 | useCount?: number |
| 93 | type?: MaterialType |
| 94 | }, |
| 95 | ) { |
| 96 | const { groupId, type, useCount, title, status } = inFilter |
| 97 | const filter = { |
| 98 | userId, |
| 99 | userType: UserType.User, |
| 100 | ...(groupId && { groupId }), |
| 101 | ...(type && { type }), |
| 102 | ...(useCount !== undefined && { useCount: { $gte: useCount } }), |
| 103 | ...(title && { title: { $regex: title, $options: 'i' } }), |
| 104 | ...(status !== undefined && { status }), |
| 105 | } |
| 106 | const res = await this.materialRepository.deleteByFilter(filter) |
| 107 | return res |
| 108 | } |
| 109 | |
| 110 | async deleteByUseCount(userId: string, groupId: string, minUseCount: number): Promise<boolean> { |
| 111 | const filter = { |
| 112 | userId, |
| 113 | userType: UserType.User, |
| 114 | groupId, |
| 115 | useCount: { $gte: minUseCount }, |
| 116 | } |
| 117 | return this.materialRepository.deleteByFilter(filter) |
| 118 | } |
| 119 | |
| 120 | async updateInfo(id: string, data: UpMaterial): Promise<boolean> { |
| 121 | const res = await this.materialRepository.updateInfo(id, data) |
| 122 | return res |
| 123 | } |
| 124 | |
| 125 | async getInfo(id: string): Promise<Material | null> { |
| 126 | const res = await this.materialRepository.getInfo(id) |
| 127 | return res |
| 128 | } |
| 129 | |
| 130 | async optimalInGroup(groupId: string, type?: MaterialType, accountType?: AccountType): Promise<Material | null> { |
| 131 | const res = await this.materialRepository.getOptimalByGroup(groupId, type, accountType) |
| 132 | return res |
| 133 | } |
| 134 | |
| 135 | async getList( |
| 136 | page: TableDto, |
| 137 | filter: { |
| 138 | userId?: string |
| 139 | userType?: UserType |
| 140 | title?: string |
| 141 | groupId?: string |
| 142 | status?: MaterialStatus |
| 143 | ids?: string[] |
| 144 | useCount?: number |
| 145 | }, |
| 146 | ) { |
| 147 | const res = await this.materialRepository.getList(filter, page) |
| 148 | return res |
| 149 | } |
| 150 | |
| 151 | async transferToGroup( |
| 152 | userId: string, |
| 153 | ids: string[], |
| 154 | targetGroupId: string, |
| 155 | mode: 'move' | 'copy', |
| 156 | ): Promise<number> { |
| 157 | if (mode === 'move') { |
| 158 | return this.materialRepository.updateGroupIdByIds(ids, targetGroupId, userId) |
| 159 | } |
| 160 | |
| 161 | const materials = await this.materialRepository.listByIdsAndUserId(ids, userId) |
| 162 | if (materials.length === 0) { |
| 163 | return 0 |
| 164 | } |
| 165 | |
| 166 | const copies = materials.map(({ id: _id, ...material }) => ({ |
| 167 | ...material, |
| 168 | groupId: targetGroupId, |
| 169 | useCount: 0, |
| 170 | })) |
| 171 | const created = await this.materialRepository.createMany(copies) |
| 172 | return created.length |
| 173 | } |
| 174 | |
| 175 | async optimalByIds(materialIds: string[]) { |
| 176 | const res = await this.materialRepository.getOptimalByIds(materialIds) |
| 177 | return res |
| 178 | } |
| 179 | |
| 180 | async getListByIds(ids: string[]) { |
| 181 | const res = await this.materialRepository.listByIds(ids) |
| 182 | return res |
| 183 | } |
| 184 | |
| 185 | async updateStatus(id: string, status: MaterialStatus, message: string) { |
| 186 | const res = await this.materialRepository.updateStatus(id, status, message) |
| 187 | return res |
| 188 | } |
| 189 | |
| 190 | async addUseCount(id: string): Promise<boolean> { |
| 191 | const material = await this.materialRepository.updateUseCountById(id) |
| 192 | if (!material) { |
| 193 | return false |
| 194 | } |
| 195 | |
| 196 | // 检查是否达到最大使用次数 |
| 197 | if ( |
| 198 | material.maxUseCount !== null |
| 199 | && material.maxUseCount !== undefined |
| 200 | && material.useCount >= material.maxUseCount |
| 201 | ) { |
| 202 | await this.del(id) |
| 203 | } |
| 204 | |
| 205 | return true |
| 206 | } |
| 207 | } |
| 208 |