| 1 | import type { PlatformContentLimits, TopicCapability } from '../platforms/platforms.interface' |
| 2 | import type { PublishContentInput } from '../publish/schemas/publish-content.schema' |
| 3 | import { PublishContentMode, PublishMediaType } from '../platforms/platforms.interface' |
| 4 | import { hasUrlPathExtension } from '../platforms/platforms.utils' |
| 5 | import { |
| 6 | parseTopicsFromBody, |
| 7 | PublishValidationCombination, |
| 8 | PublishValidationField, |
| 9 | PublishValidationIssue, |
| 10 | PublishValidationIssueCode, |
| 11 | stripTopicsFromBody, |
| 12 | } from '../platforms/publish.schema' |
| 13 | |
| 14 | function isImageExtension(url: string): boolean { |
| 15 | return hasUrlPathExtension(url, ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.webp', '.tiff']) |
| 16 | } |
| 17 | |
| 18 | function isVideoExtension(url: string): boolean { |
| 19 | return hasUrlPathExtension(url, ['.mp4', '.mov', '.avi', '.mkv', '.webm', '.m4v', '.flv', '.wmv', '.rmvb', '.3gp']) |
| 20 | } |
| 21 | |
| 22 | function getMediaType(media: { url: string, metadata?: { type?: unknown } }): PublishMediaType | undefined { |
| 23 | const metadataType = media.metadata?.['type'] |
| 24 | if (metadataType === PublishMediaType.Image || metadataType === PublishMediaType.Video) { |
| 25 | return metadataType |
| 26 | } |
| 27 | if (isImageExtension(media.url)) { |
| 28 | return PublishMediaType.Image |
| 29 | } |
| 30 | if (isVideoExtension(media.url)) { |
| 31 | return PublishMediaType.Video |
| 32 | } |
| 33 | return undefined |
| 34 | } |
| 35 | |
| 36 | export function validatePublishContent( |
| 37 | content: PublishContentInput, |
| 38 | limits: PlatformContentLimits, |
| 39 | topic?: TopicCapability, |
| 40 | ): PublishValidationIssue[] { |
| 41 | const issues: PublishValidationIssue[] = [] |
| 42 | const mediaTypes = content.media.map(getMediaType) |
| 43 | const imageCount = mediaTypes.filter(type => type === PublishMediaType.Image).length |
| 44 | const videoCount = mediaTypes.filter(type => type === PublishMediaType.Video).length |
| 45 | const bodyForLength = topic?.nativeField ? stripTopicsFromBody(content.body) : content.body |
| 46 | |
| 47 | // Required check |
| 48 | if (!content.body && !content.title && !content.media.length) { |
| 49 | issues.push({ |
| 50 | code: PublishValidationIssueCode.Required, |
| 51 | path: ['content'], |
| 52 | params: { field: PublishValidationField.Post }, |
| 53 | }) |
| 54 | } |
| 55 | |
| 56 | if (!(imageCount > 0 && videoCount > 0)) { |
| 57 | const mode = resolveContentMode(content, videoCount) |
| 58 | if (mode && !limits.modes.includes(mode)) { |
| 59 | issues.push({ |
| 60 | code: PublishValidationIssueCode.UnsupportedContentMode, |
| 61 | path: ['content'], |
| 62 | params: { field: PublishValidationField.Post, mode }, |
| 63 | }) |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | // Title length |
| 68 | if (limits.maxTitleLength !== undefined && content.title && content.title.length > limits.maxTitleLength) { |
| 69 | issues.push({ |
| 70 | code: PublishValidationIssueCode.TooBig, |
| 71 | path: ['content', 'title'], |
| 72 | params: { field: PublishValidationField.Title, current: content.title.length, maximum: limits.maxTitleLength, unit: 'characters' }, |
| 73 | }) |
| 74 | } |
| 75 | |
| 76 | // Body length |
| 77 | if (limits.maxBodyLength !== undefined && bodyForLength && bodyForLength.length > limits.maxBodyLength) { |
| 78 | issues.push({ |
| 79 | code: PublishValidationIssueCode.TooBig, |
| 80 | path: ['content', 'body'], |
| 81 | params: { field: PublishValidationField.Text, current: bodyForLength.length, maximum: limits.maxBodyLength, unit: 'characters' }, |
| 82 | }) |
| 83 | } |
| 84 | |
| 85 | // Total text length |
| 86 | if (limits.maxTotalTextLength !== undefined) { |
| 87 | const totalTextLength = (content.title?.length ?? 0) + (bodyForLength?.length ?? 0) |
| 88 | if (totalTextLength > limits.maxTotalTextLength) { |
| 89 | issues.push({ |
| 90 | code: PublishValidationIssueCode.TooBig, |
| 91 | path: ['content'], |
| 92 | params: { field: PublishValidationField.Text, current: totalTextLength, maximum: limits.maxTotalTextLength, unit: 'characters' }, |
| 93 | }) |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | // Media count checks |
| 98 | if (imageCount > 0 && videoCount > 0) { |
| 99 | issues.push({ |
| 100 | code: PublishValidationIssueCode.InvalidCombination, |
| 101 | path: ['content', 'media'], |
| 102 | params: { combination: PublishValidationCombination.ImageVideo }, |
| 103 | }) |
| 104 | } |
| 105 | |
| 106 | if (limits.maxImages !== undefined && imageCount > limits.maxImages) { |
| 107 | issues.push({ |
| 108 | code: PublishValidationIssueCode.TooBig, |
| 109 | path: ['content', 'media'], |
| 110 | params: { field: PublishValidationField.Image, current: imageCount, maximum: limits.maxImages, unit: 'items' }, |
| 111 | }) |
| 112 | } |
| 113 | |
| 114 | if (limits.maxVideos !== undefined && videoCount > limits.maxVideos) { |
| 115 | issues.push({ |
| 116 | code: PublishValidationIssueCode.TooBig, |
| 117 | path: ['content', 'media'], |
| 118 | params: { field: PublishValidationField.Video, current: videoCount, maximum: limits.maxVideos, unit: 'items' }, |
| 119 | }) |
| 120 | } |
| 121 | |
| 122 | if (limits.maxMediaCount !== undefined && content.media.length > limits.maxMediaCount) { |
| 123 | issues.push({ |
| 124 | code: PublishValidationIssueCode.TooBig, |
| 125 | path: ['content', 'media'], |
| 126 | params: { field: PublishValidationField.Media, current: content.media.length, maximum: limits.maxMediaCount, unit: 'items' }, |
| 127 | }) |
| 128 | } |
| 129 | |
| 130 | if (topic?.supported && topic.maxCount !== undefined) { |
| 131 | const topics = parseTopicsFromBody(content.body) |
| 132 | if (topics.length > topic.maxCount) { |
| 133 | issues.push({ |
| 134 | code: PublishValidationIssueCode.TooBig, |
| 135 | path: ['content', 'topics'], |
| 136 | params: { field: PublishValidationField.Topic, current: topics.length, maximum: topic.maxCount, unit: 'items' }, |
| 137 | }) |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | // Cover format |
| 142 | if (content.cover?.url && getMediaType(content.cover) !== PublishMediaType.Image && !isImageExtension(content.cover.url)) { |
| 143 | issues.push({ |
| 144 | code: PublishValidationIssueCode.UnsupportedFormat, |
| 145 | path: ['content', 'cover'], |
| 146 | params: { field: PublishValidationField.Cover, format: getExtension(content.cover.url) }, |
| 147 | }) |
| 148 | } |
| 149 | |
| 150 | return issues |
| 151 | } |
| 152 | |
| 153 | function resolveContentMode(content: PublishContentInput, videoCount: number): PublishContentMode | undefined { |
| 154 | if (videoCount > 0) { |
| 155 | return PublishContentMode.Video |
| 156 | } |
| 157 | if (content.media.length > 0 || content.cover?.url) { |
| 158 | return PublishContentMode.ImageText |
| 159 | } |
| 160 | if (content.title || content.body) { |
| 161 | return PublishContentMode.Text |
| 162 | } |
| 163 | return undefined |
| 164 | } |
| 165 | |
| 166 | function getExtension(url: string): string { |
| 167 | try { |
| 168 | const pathname = new URL(url).pathname |
| 169 | const dot = pathname.lastIndexOf('.') |
| 170 | return dot >= 0 ? pathname.slice(dot) : 'unknown' |
| 171 | } |
| 172 | catch { |
| 173 | return 'unknown' |
| 174 | } |
| 175 | } |
| 176 |