| 1 | "use server"; |
| 2 | |
| 3 | import { fal } from "@fal-ai/client"; |
| 4 | import { UTFile } from "uploadthing/server"; |
| 5 | |
| 6 | import { utapi } from "@/app/api/uploadthing/lib"; |
| 7 | import { |
| 8 | DEFAULT_IMAGE_MODEL, |
| 9 | getFalImageGenerationInput, |
| 10 | type ImageModelList, |
| 11 | } from "@/constants/image-models"; |
| 12 | import { env } from "@/env"; |
| 13 | import { logger } from "@/lib/observability/server/logger"; |
| 14 | import { auth } from "@/server/auth"; |
| 15 | import { db } from "@/server/db"; |
| 16 | |
| 17 | fal.config({ |
| 18 | credentials: env.FAL_API_KEY, |
| 19 | }); |
| 20 | |
| 21 | type GenerateInfographicImageActionInput = { |
| 22 | illustrationStyle?: string; |
| 23 | layout?: string; |
| 24 | model?: ImageModelList; |
| 25 | prompt: string; |
| 26 | }; |
| 27 | |
| 28 | function buildInfographicPrompt({ |
| 29 | prompt, |
| 30 | illustrationStyle, |
| 31 | layout, |
| 32 | }: Required< |
| 33 | Pick< |
| 34 | GenerateInfographicImageActionInput, |
| 35 | "illustrationStyle" | "layout" | "prompt" |
| 36 | > |
| 37 | >) { |
| 38 | return [ |
| 39 | "Create a polished, presentation-ready infographic image.", |
| 40 | `Topic and source content: ${prompt}`, |
| 41 | `Infographic layout: ${layout}.`, |
| 42 | `Illustration style: ${illustrationStyle}.`, |
| 43 | "Design requirements:", |
| 44 | "- Build a clear visual hierarchy with one concise headline, short supporting labels, and meaningful grouped sections.", |
| 45 | "- Use item labels of 20 characters or fewer and item descriptions of 60 characters or fewer.", |
| 46 | "- For layout-based infographics such as timeline, process, comparison, hierarchy, cycle, roadmap, or matrix layouts, show only the strongest 4 to 5 visible items. Synthesize extra source details into those items instead of adding more sections.", |
| 47 | "- Word clouds and chart-style visuals may include more items when useful.", |
| 48 | "- Use accurate, readable text only; avoid misspellings, warped letters, fake words, and placeholder gibberish.", |
| 49 | "- Convert the topic into a structured infographic with visual flow, icons, labels, connectors, and compact data callouts where useful.", |
| 50 | "- Keep the composition uncluttered with generous spacing, strong alignment, and balanced margins for slide embedding.", |
| 51 | "- Use a modern editorial presentation aesthetic with crisp vector-like shapes, high contrast, and clean typography.", |
| 52 | "- Avoid photorealistic scenes unless the prompt explicitly requires them; prioritize diagrammatic explanation over decoration.", |
| 53 | "- Do not include watermarks, UI chrome, browser frames, logos unless requested, QR codes, or stock-photo overlays.", |
| 54 | "- The final output must be a single complete infographic image ready to place directly into a presentation.", |
| 55 | ].join("\n"); |
| 56 | } |
| 57 | |
| 58 | export async function generateInfographicImageAction({ |
| 59 | illustrationStyle = "Bauhaus", |
| 60 | layout = "Timeline", |
| 61 | model = DEFAULT_IMAGE_MODEL, |
| 62 | prompt, |
| 63 | }: GenerateInfographicImageActionInput) { |
| 64 | const trimmedPrompt = prompt.trim(); |
| 65 | const actionName = "apps.image-studio.generateInfographicImageAction"; |
| 66 | const span = logger.startSpan(`notebook.server_action.${actionName}`, { |
| 67 | attributes: { |
| 68 | "allweone.scope": "notebook", |
| 69 | "allweone.action.type": "server_action", |
| 70 | "allweone.action.name": actionName, |
| 71 | "allweone.server.image_generation.prompt.length": trimmedPrompt.length, |
| 72 | "allweone.server.image_generation.requested_model": model, |
| 73 | }, |
| 74 | }); |
| 75 | |
| 76 | const session = await auth(); |
| 77 | |
| 78 | if (!session?.user?.id) { |
| 79 | span.annotate({ |
| 80 | "allweone.server.image_generation.authorized": false, |
| 81 | }); |
| 82 | span.end(); |
| 83 | return { |
| 84 | success: false, |
| 85 | error: "You must be logged in to generate infographics", |
| 86 | }; |
| 87 | } |
| 88 | |
| 89 | if (!trimmedPrompt) { |
| 90 | span.end(); |
| 91 | return { |
| 92 | success: false, |
| 93 | error: "Prompt is required", |
| 94 | }; |
| 95 | } |
| 96 | |
| 97 | const fullPrompt = buildInfographicPrompt({ |
| 98 | prompt: trimmedPrompt, |
| 99 | illustrationStyle: illustrationStyle.trim() || "Bauhaus", |
| 100 | layout: layout.trim() || "Timeline", |
| 101 | }); |
| 102 | |
| 103 | try { |
| 104 | const actualModel = session.user.isAdmin ? model : DEFAULT_IMAGE_MODEL; |
| 105 | |
| 106 | span.annotate({ |
| 107 | "allweone.server.image_generation.authorized": true, |
| 108 | "allweone.server.image_generation.admin": session.user.isAdmin, |
| 109 | "allweone.server.image_generation.model": actualModel, |
| 110 | "allweone.server.image_generation.user_id": session.user.id, |
| 111 | }); |
| 112 | span.event("allweone.server.image_generation.started", { |
| 113 | "allweone.server.image_generation.model": actualModel, |
| 114 | }); |
| 115 | |
| 116 | const result = await fal.subscribe(actualModel, { |
| 117 | input: getFalImageGenerationInput({ |
| 118 | model: actualModel, |
| 119 | prompt: fullPrompt, |
| 120 | aspectRatio: "16:9", |
| 121 | }), |
| 122 | }); |
| 123 | |
| 124 | const imageUrl = result.data?.images?.[0]?.url; |
| 125 | |
| 126 | if (!imageUrl) { |
| 127 | throw new Error("Failed to generate infographic"); |
| 128 | } |
| 129 | |
| 130 | span.event("allweone.server.image_generation.image_ready", { |
| 131 | "allweone.server.image_generation.source_url_available": true, |
| 132 | }); |
| 133 | |
| 134 | const imageResponse = await fetch(imageUrl); |
| 135 | if (!imageResponse.ok) { |
| 136 | throw new Error("Failed to download generated infographic"); |
| 137 | } |
| 138 | |
| 139 | const imageBlob = await imageResponse.blob(); |
| 140 | const imageBuffer = await imageBlob.arrayBuffer(); |
| 141 | const filename = `infographic_${Date.now()}.png`; |
| 142 | const utFile = new UTFile([new Uint8Array(imageBuffer)], filename); |
| 143 | const uploadResult = await utapi.uploadFiles([utFile]); |
| 144 | const permanentUrl = uploadResult[0]?.data?.ufsUrl; |
| 145 | |
| 146 | if (!permanentUrl) { |
| 147 | throw new Error("Failed to upload generated infographic"); |
| 148 | } |
| 149 | |
| 150 | span.event("allweone.server.image_generation.upload_completed", { |
| 151 | "allweone.server.image_generation.uploaded": true, |
| 152 | }); |
| 153 | |
| 154 | const generatedImage = await db.generatedImage.create({ |
| 155 | data: { |
| 156 | url: permanentUrl, |
| 157 | prompt: fullPrompt, |
| 158 | userId: session.user.id, |
| 159 | }, |
| 160 | select: { |
| 161 | id: true, |
| 162 | prompt: true, |
| 163 | url: true, |
| 164 | }, |
| 165 | }); |
| 166 | |
| 167 | span.event("allweone.server.image_generation.completed", { |
| 168 | "allweone.server.image_generation.generated_image.id": generatedImage.id, |
| 169 | }); |
| 170 | |
| 171 | return { |
| 172 | success: true, |
| 173 | image: generatedImage, |
| 174 | }; |
| 175 | } catch (error) { |
| 176 | span.error(error); |
| 177 | return { |
| 178 | success: false, |
| 179 | error: |
| 180 | error instanceof Error |
| 181 | ? error.message |
| 182 | : "Failed to generate infographic", |
| 183 | }; |
| 184 | } finally { |
| 185 | span.end(); |
| 186 | } |
| 187 | } |
| 188 |