Add images ignore file

.env.example

@@ -0,0 +1,3 @@
+FLOW2API_BASE_URL=https://flow2api.imbytecat.com/v1
+FLOW2API_API_KEY=
+FLOW2API_MODEL=gemini-3.0-pro-image-landscape

.gitignore

@@ -0,0 +1,215 @@
+output/
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.*
+!.env.example
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+.output
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Sveltekit cache directory
+.svelte-kit/
+
+# vitepress build output
+**/.vitepress/dist
+
+# vitepress cache directory
+**/.vitepress/cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# Firebase cache directory
+.firebase/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# pnpm
+.pnpm-store
+
+# yarn v3
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+
+# Vite files
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*
+.vite/
+
+# General
+.DS_Store
+__MACOSX/
+.AppleDouble
+.LSOverride
+Icon[
+]
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# Metadata left by Dolphin file manager, which comes with KDE Plasma
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# Log files created by default by the nohup command
+nohup.out

README.md

@@ -0,0 +1,32 @@
+# nano-banano
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+Set up your environment:
+
+```bash
+cp .env.example .env
+```
+
+To run:
+
+```bash
+bun run src/index.ts
+```
+
+What it does:
+
+- Reads `FLOW2API_BASE_URL`, `FLOW2API_API_KEY`, and `FLOW2API_MODEL` from `.env`
+- Accepts either a root endpoint or a `/v1` endpoint and normalizes root URLs to the OpenAI-compatible `/v1` base URL automatically
+- Also accepts older `GEMINI_MODEL` and `OPENAI_MODEL` env names for compatibility
+- Reads batch jobs from `src/jobs.ts`, where each item can define `name`, `prompt`, `images`, and `enabled`
+- Treats relative `images` entries in each job as files under the local `images/` directory
+- Sends `prompt` plus any local input images through AI SDK's `streamText`, then downloads the generated image from the streamed Markdown image link
+- Saves each generated image into `output/` with a job-based timestamp filename
+- Keeps runtime code under `src/` and uses the `@/*` TypeScript alias for internal imports
+
+This project was created using `bun init` in bun v1.3.11. [Bun](https://bun.com) is a fast all-in-one JavaScript runtime.

biome.json

@@ -0,0 +1,34 @@
+{
+	"$schema": "https://biomejs.dev/schemas/2.4.8/schema.json",
+	"vcs": {
+		"enabled": true,
+		"clientKind": "git",
+		"useIgnoreFile": true
+	},
+	"files": {
+		"ignoreUnknown": false
+	},
+	"formatter": {
+		"enabled": true,
+		"indentStyle": "tab"
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+	"javascript": {
+		"formatter": {
+			"quoteStyle": "double"
+		}
+	},
+	"assist": {
+		"enabled": true,
+		"actions": {
+			"source": {
+				"organizeImports": "on"
+			}
+		}
+	}
+}

images/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

src/ai.ts

@@ -1,14 +1,25 @@
+import { readFile } from "node:fs/promises";
+import { extname, isAbsolute, join, resolve } from "node:path";
+
 import { createOpenAICompatible } from "@ai-sdk/openai-compatible";
 import { streamText } from "ai";
 
 import type { Config } from "@/config";
+import type { ImageJob } from "@/jobs";
 
 type GeneratedImage = {
 	bytes: Uint8Array;
 	mediaType: string;
 };
 
+type InputImagePart = {
+	type: "image";
+	image: Uint8Array;
+	mediaType: string;
+};
+
 const MARKDOWN_IMAGE_REGEX = /!\[[^\]]*\]\((https?:\/\/[^\s)]+)\)/;
+const INPUT_IMAGES_DIR = "images";
 
 function createProvider(config: Config) {
 	return createOpenAICompatible({
@@ -18,6 +29,40 @@ function createProvider(config: Config) {
 	});
 }
 
+function mediaTypeFromPath(filePath: string): string {
+	switch (extname(filePath).toLowerCase()) {
+		case ".png":
+			return "image/png";
+		case ".jpg":
+		case ".jpeg":
+			return "image/jpeg";
+		case ".webp":
+			return "image/webp";
+		case ".gif":
+			return "image/gif";
+		default:
+			return "image/png";
+	}
+}
+
+async function buildImageParts(
+	imagePaths: string[],
+): Promise<InputImagePart[]> {
+	return Promise.all(
+		imagePaths.map(async (imagePath) => ({
+			type: "image" as const,
+			image: new Uint8Array(
+				await readFile(
+					isAbsolute(imagePath)
+						? imagePath
+						: resolve(join(INPUT_IMAGES_DIR, imagePath)),
+				),
+			),
+			mediaType: mediaTypeFromPath(imagePath),
+		})),
+	);
+}
+
 function writeSectionTitle(title: string, alreadyPrinted: boolean): void {
 	if (alreadyPrinted) {
 		return;
@@ -51,12 +96,18 @@ async function downloadImage(url: string): Promise<GeneratedImage> {
 
 export async function streamPrompt(
 	config: Config,
-	prompt: string,
+	job: Pick<ImageJob, "prompt" | "images">,
 ): Promise<GeneratedImage> {
 	const provider = createProvider(config);
+	const imageParts = await buildImageParts(job.images ?? []);
 	const result = streamText({
 		model: provider(config.model),
-		prompt,
+		messages: [
+			{
+				role: "user",
+				content: [{ type: "text", text: job.prompt }, ...imageParts],
+			},
+		],
 	});
 
 	let reasoningStarted = false;

src/image.ts

@@ -1,7 +1,16 @@
 import { mkdir, writeFile } from "node:fs/promises";
 import { join } from "node:path";
 
-const IMAGES_DIR = "images";
+const OUTPUT_DIR = "output";
+
+function sanitizeFileNamePart(value: string): string {
+	return value
+		.trim()
+		.toLowerCase()
+		.replace(/[^a-z0-9]+/g, "-")
+		.replace(/^-+|-+$/g, "")
+		.slice(0, 60);
+}
 
 function mediaTypeToExtension(mediaType: string): string {
 	switch (mediaType) {
@@ -18,19 +27,21 @@ function mediaTypeToExtension(mediaType: string): string {
 	}
 }
 
-function createTimestampFileName(mediaType: string): string {
+function createTimestampFileName(mediaType: string, name?: string): string {
 	const extension = mediaTypeToExtension(mediaType);
 	const timestamp = new Date().toISOString().replace(/[.:]/g, "-");
-	return `${timestamp}.${extension}`;
+	const prefix = name ? `${sanitizeFileNamePart(name)}-` : "";
+	return `${prefix}${timestamp}.${extension}`;
 }
 
 export async function saveImage(
 	bytes: Uint8Array,
 	mediaType: string,
+	name?: string,
 ): Promise<string> {
-	await mkdir(IMAGES_DIR, { recursive: true });
+	await mkdir(OUTPUT_DIR, { recursive: true });
 
-	const filePath = join(IMAGES_DIR, createTimestampFileName(mediaType));
+	const filePath = join(OUTPUT_DIR, createTimestampFileName(mediaType, name));
 	await writeFile(filePath, bytes);
 
 	return filePath;

src/index.ts

@@ -1,27 +1,32 @@
 import { streamPrompt } from "@/ai";
 import { loadConfig } from "@/config";
 import { saveImage } from "@/image";
-
-const DEFAULT_PROMPT =
-	"A cute nano banano mascot in a clean sci-fi lab, bright colors, polished illustration";
-
-function buildPrompt(): string {
-	const cliPrompt = Bun.argv.slice(2).join(" ").trim();
-	return cliPrompt || DEFAULT_PROMPT;
-}
+import { jobs } from "@/jobs";
 
 async function main(): Promise<void> {
 	const config = loadConfig();
-	const prompt = buildPrompt();
+	const enabledJobs = jobs.filter((job) => job.enabled !== false);
 
-	console.log(`Prompt: ${prompt}`);
+	if (enabledJobs.length === 0) {
+		throw new Error("No enabled jobs found.");
+	}
 
-	const image = await streamPrompt(config, prompt);
+	for (const job of enabledJobs) {
+		console.log(`\n=== ${job.name} ===`);
+		console.log(`Prompt: ${job.prompt}`);
+		console.log(`Input images: ${job.images?.length ?? 0}`);
 
-	const savedImagePath = await saveImage(image.bytes, image.mediaType);
+		const image = await streamPrompt(config, job);
+
+		const savedImagePath = await saveImage(
+			image.bytes,
+			image.mediaType,
+			job.name,
+		);
 
 		console.log(`\nSaved image: ${savedImagePath}`);
 		console.log(`Image media type: ${image.mediaType}`);
+	}
 }
 
 main().catch((error: unknown) => {

src/jobs.ts

@@ -0,0 +1,16 @@
+export type ImageJob = {
+	name: string;
+	prompt: string;
+	images?: string[];
+	enabled?: boolean;
+};
+
+export const jobs: ImageJob[] = [
+	{
+		name: "nano-banano-test",
+		enabled: true,
+		prompt:
+			"根据角色参考图，设计并绘制一个细化过的插画。画面需包括这四位角色。画面描绘四位角色在一起睡觉的场景，删除帽子、鞋子和披肩，保留袜子。衣服凌乱，闭眼，互相紧靠在一起。注意保留角色的头身比、脸型、服饰细节和原图画风。注意表现角色身高关系：粉发170 两位白发162 棕发151",
+		images: ["Aishia1.png", "Celia1.png", "Latifa1.png", "Sara1.png"],
+	},
+];

tsconfig.json

@@ -0,0 +1,33 @@
+{
+	"compilerOptions": {
+		// Environment setup & latest features
+		"lib": ["ESNext"],
+		"target": "ESNext",
+		"module": "Preserve",
+		"moduleDetection": "force",
+		"jsx": "react-jsx",
+		"allowJs": true,
+
+		// Bundler mode
+		"baseUrl": ".",
+		"paths": {
+			"@/*": ["src/*"]
+		},
+		"moduleResolution": "bundler",
+		"allowImportingTsExtensions": true,
+		"verbatimModuleSyntax": true,
+		"noEmit": true,
+
+		// Best practices
+		"strict": true,
+		"skipLibCheck": true,
+		"noFallthroughCasesInSwitch": true,
+		"noUncheckedIndexedAccess": true,
+		"noImplicitOverride": true,
+
+		// Some stricter flags (disabled by default)
+		"noUnusedLocals": false,
+		"noUnusedParameters": false,
+		"noPropertyAccessFromIndexSignature": false
+	}
+}