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Manhwa Recap Thumbnail Generator\n// Generates a retro-style thumbnail for a recap script line.\n// Gender is classified from the character's name so the art matches.\n//\n// Usage:\n// /?name=Jinwoo&action=steps out of the portal\n// /?name=Cha Hae-in&action=draws her sword\n// /?name=Jinwoo&action=steps out of the portal&style=anime\n\n// Canonical character looks — the protagonist's EXACT appearance, reused\n// every video so the face stays consistent (series recognition).\n// This is the \"Character Lock\" for the thumbnail generator.\n// Add ANY character you recap here — the more you add, the more it applies\n// to all your videos, not just Jinwoo.\nconst CHARACTER_LOOKS: Record = {\n // Solo Leveling\n \"sung jinwoo\": \"MALE character, clearly masculine face with strong sharp jawline and defined brow, short spiky black hair, sharp dark eyes that GLOW pale violet when power is active, wearing sleek black-and-navy Shadow Monarch armor with glowing purple energy, dark ethereal aura and floating shadow soldiers behind him, confident sovereign expression\",\n \"jinwoo\": \"MALE character, clearly masculine face with strong sharp jawline and defined brow, short spiky black hair, sharp dark eyes that GLOW pale violet when power is active, wearing sleek black-and-navy Shadow Monarch armor with glowing purple energy, dark ethereal aura and floating shadow soldiers behind him, confident sovereign expression\",\n \"cha hae-in\": \"FEMALE character, elegant sharp-eyed woman, shoulder-length dark red hair, white and crimson hunter uniform, focused cold expression, holding a glowing sword\",\n \"igris\": \"MALE character, imposing knight in ornate black-and-gold armor, glowing blue eyes, regal menacing presence, holding a greatsword\",\n \"beru\": \"MALE character, fearsome insect-like shadow beast, tall armored ant king with glowing red eyes, black carapace armor, menacing\",\n \"ashborn\": \"MALE character, ancient supreme being, gaunt pale face, flowing dark robes, massive shadow wings, overwhelming godlike aura\",\n \"antares\": \"MALE character, massive dragon monarch, black draconic armor, glowing red eyes, towering menacing presence\",\n \"go gun-hee\": \"MALE character, elderly dignified chairman, sharp grey hair, tailored suit, calm authoritative expression\",\n \"baek yoonho\": \"MALE character, tall lean man, short black hair, sleek black suit, sharp predatory eyes, composed\",\n \"woo jin-chul\": \"MALE character, clean-cut young man, neat dark hair, black suit and tie, stoic professional expression\",\n \"choi jong-in\": \"MALE character, flamboyant young man, spiky dyed hair, flashy colorful outfit, cocky grin\",\n \"jinah\": \"FEMALE character, cute young woman, shoulder-length dark hair, cheerful bright smile, casual modern clothes\",\n \"sung jinah\": \"FEMALE character, cute young woman, shoulder-length dark hair, cheerful bright smile, casual modern clothes\",\n // The Greatest Estate Developer\n \"lloyd\": \"MALE character, athletic handsome young man, neat dark blond hair, red and white webtoon adventurer outfit, carrying a radiant golden holy power aura, sly confident grin\",\n \"lloyd frontera\": \"MALE character, athletic handsome young man, neat dark blond hair, red and white webtoon adventurer outfit, carrying a radiant golden holy power aura, sly confident grin\",\n \"javier\": \"MALE character, tall handsome knight, neat dark hair, silver and blue armor, noble composed expression, holding a sword\",\n \"esil\": \"FEMALE character, beautiful young woman, long dark hair, elegant noble dress, sharp clever eyes\",\n};\n\n// A small built-in table of common manhwa character names -> gender.\n// Add your own characters here as your recaps cover them.\nconst KNOWN: Record = {\n \"jinwoo\": \"male\",\n \"sung jinwoo\": \"male\",\n \"suho\": \"male\",\n \"cha hae-in\": \"female\",\n \"hae-in\": \"female\",\n \"go gun-hee\": \"male\",\n \"igris\": \"male\",\n \"beru\": \"male\",\n \"lloyd\": \"male\",\n \"javier\": \"male\",\n \"lloyd frontera\": \"male\",\n \"suho kim\": \"male\",\n \"ashborn\": \"male\",\n \"esil\": \"female\",\n \"antares\": \"male\",\n \"jinah\": \"female\",\n \"sung jinah\": \"female\",\n \"woo jin-chul\": \"male\",\n \"baek yoonho\": \"male\",\n \"choi jong-in\": \"male\",\n \"thomas andre\": \"male\",\n \"liu zhigang\": \"male\",\n \"goh gunhui\": \"male\",\n};\n\n// Heuristic fallback for names not in the table.\n// Korean names: last syllable in \"a/eo/yeo/ah\" is often female.\nfunction guessGender(name: string): \"male\" | \"female\" {\n const n = name.toLowerCase().trim();\n if (KNOWN[n]) return KNOWN[n];\n // last word\n const last = n.split(/[\\s-]+/).pop() ?? \"\";\n if (/(ah|a|e|eo|yeo|i|y|na|ra|mi|jin|sun|soo|hee|in)$/.test(last)) {\n // common female endings\n if (/(ah|a|e|eo|yeo|i|y|na|ra|mi|jin|sun|soo|hee|in)$/.test(last)) {\n return \"female\";\n }\n }\n if (/(woo|ho|jin|hyun|seok|tae|min|jae|gun|do|soo|hun|seung|kyu|jun|sang)$/.test(last)) {\n return \"male\";\n }\n return \"male\"; // default\n}\n\nfunction classify(name: string): \"male\" | \"female\" {\n return KNOWN[name.toLowerCase().trim()] ?? guessGender(name);\n}\n\n// Art styles.\nconst STYLES: Record = {\n retro: \"vintage 1990s anime cel style, grainy VHS scanlines, faded colors, thick ink outlines, retro manga cover art, dramatic low-angle shot, bold dramatic lighting, aged paper texture\",\n anime: \"clean modern anime style, vibrant colors, sharp lineart, dynamic action pose, cinematic lighting\",\n manhwa: \"webtoon manhwa style, soft shading, glossy highlights, dramatic composition\",\n};\n\n// Anti-repetition: every video should get a unique dramatic setup + hook so\n// your channel list never looks like the same thumbnail copy-pasted.\nconst HOOK_SCENES: string[] = [\n \"standing atop a massive pile of defeated monsters, purple energy crackling in the air\",\n \"locked in a close-up staredown with a towering enemy, power flaring in the eyes\",\n \"mid-power-up, hair blown back by a shockwave, shadows swirling into an army behind\",\n \"wounded but defiant, gripping their weapon, a burning battlefield behind them\",\n \"under a rain of glowing embers, armor cracked, one last stand, eyes burning bright\",\n \"unleashing a colossal energy blast that splits the sky, silhouetted against the flash\",\n \"confronting three shadowy villains at once, cold resolve on the face\",\n \"standing before a colossal glowing portal, summoned army pouring out his shadow\",\n];\n\nfunction buildPrompt(\n name: string,\n action: string,\n gender: string,\n style: string,\n hook: string,\n episode: string,\n): string {\n const key = name.toLowerCase().trim();\n const look = CHARACTER_LOOKS[key];\n const scene = hook.trim() || action.trim() || (\"ep\" + episode.trim());\n\n const base = look\n ? // Canonical look wins — no generic guess, guaranteed correct gender.\n `${look}, ${scene}, ${STYLES[style] ?? STYLES.retro}, thumbnail art, high detail`\n : // Fallback for unknown names: hard gender reinforcement to stop the\n // \"labels a man but draws a woman\" problem.\n `${gender === \"male\"\n ? \"MALE character, clearly masculine, chiseled male jawline, broad shoulders, SHORT masculine male haircut, no eyelashes, not female, not androgynous\"\n : \"FEMALE character, clearly feminine, graceful female features, longer feminine hair, not male\"} named ${name}, ${scene}, ${STYLES[style] ?? STYLES.retro}, thumbnail art, high detail`;\n\n return episode\n ? `${base}, dramatic episode ${episode} composition, distinct unique framing`\n : base;\n}\n\nfunction html(page: string): Response {\n return new Response(page, { headers: { \"content-type\": \"text/html; charset=utf-8\" } });\n}\n\nexport default async function handler(req: Request): Promise {\n const url = new URL(req.url);\n const name = (url.searchParams.get(\"name\") || \"\").trim();\n const action = (url.searchParams.get(\"action\") || \"\").trim();\n const hook = (url.searchParams.get(\"hook\") || \"\").trim();\n const episode = (url.searchParams.get(\"episode\") || \"\").trim();\n const style = (url.searchParams.get(\"style\") || \"retro\").toLowerCase();\n const raw = url.searchParams.get(\"raw\") === \"1\";\n\n if (!name) {\n return html(`\nManhwa Thumbnail Gen\n\n\n

🎬 Manhwa Recap Thumbnail Generator

Type a character name and what they're doing. Gender is guessed from the name so the art matches.

\n\n

Tip: also works as an API — /?name=Jinwoo&hook=HE%20BETRAYED%20HIS%20OWN%20GUILD&episode=179&raw=1 returns the image directly. Give every video a unique hook so nothing looks copy-pasted.

\n`);\n }\n\n const gender = classify(name);\n const prompt = buildPrompt(name, action, gender, style, hook, episode);\n const imgUrl = `https://image.pollinations.ai/prompt/${encodeURIComponent(prompt)}?width=1280&height=720&nologo=true`;\n\n if (raw) {\n // fetch and proxy the generated image\n const res = await fetch(imgUrl);\n const buf = await res.arrayBuffer();\n return new Response(buf, {\n headers: {\n \"content-type\": res.headers.get(\"content-type\") || \"image/jpeg\",\n \"cache-control\": \"public, max-age=3600\",\n },\n });\n }\n\n return html(`\n${name} — Thumbnail\n\n\n

${name}

\n${gender === \"male\" ? \"♂ Male\" : \"♀ Female\"} (guessed from name)\nstyle: ${style}\n

Prompt: ${prompt}

\n $\"Generated$ \n

Direct image link

← New thumbnail

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