import { spawn } from "node:child_process";
import { GoogleGenAI } from "@google/genai";
import { drawCards } from "./whack_cards.js";
import { isCodexConfigured } from "./nano_banana.js";

export const DEFAULT_USER_BACKGROUND = `Creative technologist, homelabber, and maker (vloser.us).
Interests & Background:
- Vintage screenprint apparel, heavyweight crewneck tees (5-inch left-chest emblems & full-back prints), die-cut vinyl stickers, national park & alpine ski/mountain aesthetics, specialty espresso & craft brewing culture.
- Self-hosted Docker homelab infrastructure (Traefik, Gitea, Homepage, SQLite, AI agents, local automation, media & art tools).
- Tactile hardware & ambient displays (ESP32, E-Ink dashboards, home telemetry, vinyl/audio archives, photography & curated digital art galleries).
- Lateral thinking, Roger von Oech's Creative Whack Pack, and playful weekend builds that ship fast.`;

export const CURATED_IDEA_TEMPLATES = [
  {
    title: "Alpine Telemetry Club — Heavyweight Left-Chest & Back Print Tee",
    elevator_pitch: "Vintage 1970s mountain weather-station tee featuring a 5-inch left-chest anemometer badge and a full-back topographic isobar map.",
    category: "creative",
    tags: ["tshirt", "merch", "screenprint", "alpine", "weather"],
    rating_excitement: 5,
    rating_impact: 4,
    rating_ease: 5,
    notes_markdown: "### Apparel & Print Concept\n- **Garment**: 6.5oz Heavyweight Vintage Cream (`#F5E8D3`) or Forest Pine (`#1E3F2B`) crewneck.\n- **Front Print**: 5-inch left-chest circular patch reading `HIGH ALTITUDE TELEMETRY DIVISION • EST. 1978`.\n- **Back Print**: 3-color spot screenprint showing elevation contour lines, barometric pressure curves, and a retro satellite dish icon.",
    checklist: [
      "Mock up 5-inch left-chest emblem in Visual Mockup Studio",
      "Test Burnt Orange + Espresso Brown + Gold ink palette on Cream tee",
      "Export print-ready high-res PNG"
    ],
    pros: ["Bridges geeky homelab telemetry with classic outdoor heritage apparel", "Works great as a 3-color screenprint"],
    cons: ["Fine isobar contour lines need careful halftone/stroke weight"]
  },
  {
    title: "Self-Hosted Homelab Rack Patch & Die-Cut Sticker Series",
    elevator_pitch: "Collectible merit-badge style vinyl stickers and embroidered patches for homelab milestones ('Zero Downtime Club', 'DNS Survivor', 'Docker Compose Alchemist').",
    category: "creative",
    tags: ["sticker", "merch", "homelab", "docker", "illustration"],
    rating_excitement: 5,
    rating_impact: 4,
    rating_ease: 5,
    notes_markdown: "### Series Concept\n- Design a set of 4 vintage scout/national-park style badges celebrating self-hosting and homelab triumphs:\n  1. **It Was DNS All Along** (owl holding a tangled ethernet cable)\n  2. **Container Ship Captain** (vintage tugboat carrying glowing Docker containers)\n  3. **3-2-1 Backup Ranger** (forest lookout tower with tape reels)\n- Great for laptop lids, server rack doors, or left-chest pocket tees.",
    checklist: [
      "Generate 'It Was DNS All Along' die-cut sticker mockup",
      "Test white vinyl contour border on dark slate surface",
      "Try left-chest t-shirt variation"
    ],
    pros: ["Instant hit with self-hosting/homelab community", "Low unit cost to print die-cut vinyl runs"],
    cons: ["Need crisp bold typography that reads well at 3-inch sticker scale"]
  },
  {
    title: "Sub-Zero Cold Brew & Vinyl Listening Society Crewneck",
    elevator_pitch: "Retro Japanese jazz-kissa (listening bar) inspired t-shirt combining a spinning 45rpm record adapter with an iced pour-over carafe.",
    category: "creative",
    tags: ["tshirt", "merch", "coffee", "vinyl", "retro"],
    rating_excitement: 4,
    rating_impact: 4,
    rating_ease: 5,
    notes_markdown: "### Design Notes\n- Inspired by Tokyo kissaten hi-fi coffee lounges.\n- **Colorway**: Midnight Navy (`#1B2A4A`) tee with cream and warm amber puff/plastisol ink.\n- **Graphic**: A geometric 45rpm vinyl spindle morphing into ripples of espresso in a ceramic mug.",
    checklist: [
      "Generate Midnight Navy t-shirt mockup in Studio",
      "Experiment with vintage mono-spaced typography in Canvas Compositor"
    ],
    pros: ["Combines two tactile daily rituals (coffee + music)", "Minimalist 2-color screenprint"],
    cons: ["Dark garment requires opaque cream underbase"]
  },
  {
    title: "Homelab Service Health Receipt Printer (Thermal Desk Totem)",
    elevator_pitch: "A retro POS thermal receipt printer on your desk that prints a physical morning 'Daily Dispatch' ticket with server stats, weather, and 1 random SparkVault idea + Whack Pack card.",
    category: "project",
    tags: ["hardware", "homelab", "thermal-printer", "automation", "esp32"],
    rating_excitement: 5,
    rating_impact: 5,
    rating_ease: 4,
    notes_markdown: "### Morning Ritual Hardware\n- Uses a $25 ESC/POS USB or Wi-Fi 58mm thermal receipt printer.\n- Every morning at 7:30 AM (or when a big arcade button is pressed), it queries `sparkvault.vloser.us/api/whack-cards/draw?mode=collider` and `vloser.us` container status.\n- Prints a crisp tear-off physical ticket with:\n  - Today's Creative Whack Pack Card & prompt question\n  - One stale Spark from your vault to think about over coffee\n  - Homelab uptime summary",
    checklist: [
      "Write Node/Python ESC/POS formatter script",
      "Hook up `/api/whack-cards/draw?mode=collider` endpoint",
      "Design dithered 1-bit header logo for the thermal roll"
    ],
    pros: ["Zero-ink thermal paper is pennies per roll", "Brings digital ideas into the physical world every morning"],
    cons: ["Thermal paper fades if left in direct sunlight"]
  },
  {
    title: "AI Frame Curator — Dynamic Art & Mockup Rotator for Wall Display",
    elevator_pitch: "Self-hosted web frame mode that turns any tablet or wall TV into a curated gallery cycling through your best art, photography, and active SparkVault mockups with QR codes to vote/comment.",
    category: "project",
    tags: ["art-gallery", "homelab", "docker", "display", "ui"],
    rating_excitement: 4,
    rating_impact: 4,
    rating_ease: 4,
    notes_markdown: "### Architecture\n- Lightweight kiosk view with museum-style matte framing, subtle ambient color matching, and museum placard metadata in the corner.\n- Guests or family can scan a tiny corner QR code on the LAN to give a 🔥 vote or drop a note directly into SparkVault.",
    checklist: [
      "Mock up the gallery kiosk UI in Mockup Studio (`app-ui` preset)",
      "Add museum placard typography overlay",
      "Deploy behind Traefik on `vloser.us`"
    ],
    pros: ["Showcases art & t-shirt mockups passively around the house", "Uses existing homelab stack"],
    cons: ["Needs wake-lock / auto-dimming schedule for night hours"]
  },
  {
    title: "Midnight Maintenance Crew — Glow-in-the-Dark Homelab Tee",
    elevator_pitch: "Vintage utility-worker style t-shirt for late-night server tinkerers: 'MIDNIGHT MAINTENANCE CREW • VLOSER LABS • IF IT AIN'T BROKE, UPGRADE IT'.",
    category: "creative",
    tags: ["tshirt", "merch", "homelab", "screenprint", "vintage"],
    rating_excitement: 5,
    rating_impact: 4,
    rating_ease: 5,
    notes_markdown: "### Garment & Ink\n- **Garment**: Vintage Black (`#1C1B1A`) heavyweight tee.\n- **Graphic**: Retro mascot of a raccoon wearing a headlamp holding a wrench and a glowing fiber-optic patch cable.\n- **Placement**: 5-inch left-chest badge + oversized vintage back graphic.",
    checklist: [
      "Generate raccoon mascot screenprint graphic in Mockup Studio",
      "Test both Left-Chest and Full-Front placements"
    ],
    pros: ["Relatable self-deprecating homelab humor", "Looks awesome on Vintage Black or Heather Grey"],
    cons: ["Multi-color mascot illustration benefits from DTG or simulated process screenprint"]
  }
];

function extractJsonObject(rawText) {
  if (!rawText) return null;
  const cleaned = String(rawText)
    .replace(/```json/gi, "")
    .replace(/```/g, "")
    .trim();
  const match = cleaned.match(/\{[\s\S]*\}/);
  if (!match) return null;
  try {
    return JSON.parse(match[0]);
  } catch {
    return null;
  }
}

async function generateIdeaViaCodex(prompt) {
  const { stdout, exitCode } = await new Promise((resolve, reject) => {
    const child = spawn(
      "codex",
      [
        "exec",
        "-m",
        process.env.CODEX_MODEL || "gpt-5.6-sol",
        "--skip-git-repo-check",
        "--json",
        prompt
      ],
      {
        stdio: ["ignore", "pipe", "pipe"],
        env: { ...process.env }
      }
    );
    let out = "";
    child.stdout.on("data", (d) => {
      out += d.toString();
    });
    child.on("error", reject);
    child.on("close", (code) => resolve({ stdout: out, exitCode: code }));
  });

  let lastAgentText = "";
  for (const line of stdout.split("\n")) {
    const trimmed = line.trim();
    if (!trimmed.startsWith("{")) continue;
    try {
      const evt = JSON.parse(trimmed);
      if (evt.type === "item.completed" && evt.item?.type === "agent_message") {
        lastAgentText = evt.item.text;
      }
    } catch {
      // ignore
    }
  }

  const parsed = extractJsonObject(lastAgentText);
  if (!parsed || (!parsed.title && !Array.isArray(parsed.suggestions))) {
    throw new Error(`Codex exited (${exitCode}) without returning valid JSON.`);
  }
  return parsed;
}

async function generateIdeaViaGemini(apiKey, prompt) {
  const ai = new GoogleGenAI({ apiKey });
  const interaction = await ai.interactions.create({
    model: "gemini-3.1-flash-lite",
    input: prompt
  });
  const parsed = extractJsonObject(interaction.output_text);
  if (!parsed || (!parsed.title && !Array.isArray(parsed.suggestions))) {
    throw new Error("Gemini completed without returning valid JSON.");
  }
  return parsed;
}

/**
 * Generates a fresh, personalized idea tailored to the user's background,
 * existing vault themes, and a randomly drawn Creative Whack Pack card.
 */
export async function generatePersonalizedRandomIdea({
  userBackground = DEFAULT_USER_BACKGROUND,
  categoryFocus = "any",
  existingTitles = [],
  geminiApiKey = ""
}) {
  const card = drawCards({ count: 1 })[0];

  const categoryInstruction =
    categoryFocus && categoryFocus !== "any"
      ? `Focus specifically on the "${categoryFocus}" category (${
          categoryFocus === "creative"
            ? "a graphic t-shirt, apparel, sticker, poster, or tactile merch design"
            : categoryFocus === "project"
            ? "a self-hosted app, homelab tool, hardware/E-Ink build, or creative utility"
            : categoryFocus
        }).`
      : "Pick either a standout graphic t-shirt/merch concept ('creative') OR a clever homelab/hardware/creative-tech project ('project').";

  const prompt = [
    "You are an imaginative creative partner generating a fresh, specific, high-craft idea for a maker's SparkVault.",
    `USER BACKGROUND & TASTES:\n${userBackground || DEFAULT_USER_BACKGROUND}`,
    `CREATIVE WHACK PACK CATALYST CARD DRAWN:\nCard #${card.number} (${card.suitLabel}): "${card.title}" — ${card.promptQuestion}`,
    existingTitles.length > 0
      ? `EXISTING IDEAS IN VAULT (do NOT repeat these, invent something distinctly new):\n- ${existingTitles.slice(0, 20).join("\n- ")}`
      : "",
    categoryInstruction,
    " Do NOT run any shell commands or tools. Reply ONLY with a single raw JSON object (no markdown fences) matching this exact schema:",
    JSON.stringify({
      title: "Catchy, specific idea title",
      elevator_pitch: "Compelling one-sentence pitch explaining what makes it awesome",
      category: "creative or project or research or spark",
      tags: ["tag1", "tag2", "tag3"],
      notes_markdown: "### Concept & Specs\n- Detailed markdown notes (if apparel: blank color, ink palette, 5-inch left-chest vs full-front; if project: stack, hardware/UI, and why it's fun)",
      checklist: ["Concrete step 1", "Concrete step 2", "Concrete step 3"],
      pros: ["Pro 1", "Pro 2"],
      cons: ["Constraint or risk 1"],
      whack_reflection: `How Card #${card.number} (${card.title}) shaped this idea`
    })
  ]
    .filter(Boolean)
    .join("\n\n");

  let rawIdea = null;
  let generatorUsed = "Curated Personalized Generator";

  // 1. Try OpenAI Codex (if authenticated)
  if (isCodexConfigured()) {
    try {
      rawIdea = await generateIdeaViaCodex(prompt);
      generatorUsed = "OpenAI Codex (gpt-5.6-sol)";
    } catch (err) {
      console.warn("Codex idea generation fallback:", err.message);
    }
  }

  // 2. Try Gemini 3.1 Flash-Lite (works on Free Tier!)
  if (!rawIdea && geminiApiKey) {
    try {
      rawIdea = await generateIdeaViaGemini(geminiApiKey, prompt);
      generatorUsed = "Gemini 3.1 Flash-Lite";
    } catch (err) {
      console.warn("Gemini idea generation fallback:", err.message);
    }
  }

  // 3. Curated fallback remix if offline / no AI provider
  if (!rawIdea) {
    const unused = CURATED_IDEA_TEMPLATES.filter(
      (t) => !existingTitles.some((ex) => ex.toLowerCase() === t.title.toLowerCase())
    );
    const pool = unused.length > 0 ? unused : CURATED_IDEA_TEMPLATES;
    const chosen = pool[Math.floor(Math.random() * pool.length)];
    rawIdea = {
      ...chosen,
      whack_reflection: `Sparked with Creative Whack Pack Card #${card.number} (${card.title}): ${card.promptQuestion}`
    };
  }

  return {
    card,
    generatorUsed,
    ideaPayload: {
      title: rawIdea.title || "Untitled Spark",
      elevator_pitch: rawIdea.elevator_pitch || "",
      category: ["creative", "project", "spark", "research"].includes(rawIdea.category)
        ? rawIdea.category
        : "creative",
      status: "spark",
      rating_excitement: 4,
      rating_impact: 4,
      rating_ease: 4,
      inspired_by_card: card.number,
      tags: Array.isArray(rawIdea.tags) ? rawIdea.tags : ["ai-spark"],
      notes_markdown: rawIdea.notes_markdown || "",
      checklist: (Array.isArray(rawIdea.checklist) ? rawIdea.checklist : []).map((txt, idx) => ({
        id: `chk-${Date.now()}-${idx}`,
        text: typeof txt === "string" ? txt : txt.text || "",
        done: false
      })),
      pros: Array.isArray(rawIdea.pros) ? rawIdea.pros : [],
      cons: Array.isArray(rawIdea.cons) ? rawIdea.cons : [],
      whack_history: [
        {
          id: `whack-${Date.now()}`,
          cardNumber: card.number,
          cardTitle: card.title,
          suit: card.suit,
          suitLabel: card.suitLabel,
          promptQuestion: card.promptQuestion,
          reflection:
            rawIdea.whack_reflection ||
            `Generated using Card #${card.number} (${card.title}) + personal background profile.`,
          createdAt: new Date().toISOString()
        }
      ]
    }
  };
}

/**
 * Generates 6 creative name / title & slogan suggestions for a given idea
 * across distinct naming angles (Punchy Brand, Vintage Club/Badge, Clever/Witty,
 * Minimalist Editorial, Graphic Slogan, Technical/Maker).
 */
export async function generateNameSuggestions({
  idea,
  userBackground = DEFAULT_USER_BACKGROUND,
  geminiApiKey = ""
}) {
  const prompt = [
    "You are a sharp creative director, brand namer, and apparel/product copywriter.",
    `IDEA TO NAME:\n- Current Title: ${idea.title}\n- Elevator Pitch: ${idea.elevator_pitch || ""}\n- Category: ${idea.category}\n- Tags: ${(idea.tags || []).join(", ")}\n- Notes: ${(idea.notes_markdown || "").slice(0, 600)}`,
    `USER BACKGROUND & TASTES:\n${userBackground || DEFAULT_USER_BACKGROUND}`,
    "Generate 6 distinct, memorable name/title suggestions for this idea across different naming angles (e.g., Vintage Club/Crest, Punchy Brand Name, Witty/Clever, Minimalist, Screenprint Headline + Sub-tagline, Maker/Project Codename).",
    "Do NOT run any shell commands or tools. Reply ONLY with a single raw JSON object (no markdown fences) matching this exact schema:",
    JSON.stringify({
      suggestions: [
        {
          name: "Suggested Idea Title or Brand Name",
          tagline: "Short punchy subtitle, est. line, or one-line hook",
          style: "Angle badge (e.g. Vintage Club, Punchy Brand, Witty, Minimalist, Tee Slogan, Codename)"
        }
      ]
    })
  ].join("\n\n");

  let resultObj = null;
  let generatorUsed = "Smart Name Generator";

  if (isCodexConfigured()) {
    try {
      resultObj = await generateIdeaViaCodex(prompt);
      generatorUsed = "OpenAI Codex (gpt-5.6-sol)";
    } catch (err) {
      console.warn("Codex name suggestion fallback:", err.message);
    }
  }

  if (!resultObj && geminiApiKey) {
    try {
      resultObj = await generateIdeaViaGemini(geminiApiKey, prompt);
      generatorUsed = "Gemini 3.1 Flash-Lite";
    } catch (err) {
      console.warn("Gemini name suggestion fallback:", err.message);
    }
  }

  if (!resultObj || !Array.isArray(resultObj.suggestions) || resultObj.suggestions.length === 0) {
    const coreWords = String(idea.title || "Spark")
      .replace(/—.*$/, "")
      .replace(/[^\w\s-]/g, "")
      .trim();
    const shortCore = coreWords.split(/\s+/).slice(0, 3).join(" ") || "Alpine Spark";
    resultObj = {
      suggestions: [
        {
          name: `${shortCore} Society`,
          tagline: `EST. 1984 • HIGH ALTITUDE DIVISION`,
          style: "Vintage Club"
        },
        {
          name: `The ${shortCore} Dept.`,
          tagline: `FIELD TESTED & SELF-HOSTED`,
          style: "Heritage Badge"
        },
        {
          name: `${shortCore} — Heavyweight Edition`,
          tagline: `BUILT FOR LATE NIGHTS & EARLY SUMMITS`,
          style: "Apparel / Merch"
        },
        {
          name: `Project ${shortCore.split(" ")[0] || "Pulse"}`,
          tagline: `ZERO FRICTION • LOCAL FIRST`,
          style: "Maker Codename"
        },
        {
          name: `${shortCore} Co. Outpost`,
          tagline: `CRAFTED IN COLORADO • NO SHORTCUTS`,
          style: "Outfitter Crest"
        },
        {
          name: ` Midnight ${shortCore} Club`,
          tagline: `IF IT AIN'T BROKE, UPGRADE IT`,
          style: "Witty / Homelab"
        }
      ]
    };
  }

  return {
    generatorUsed,
    suggestions: resultObj.suggestions.slice(0, 6)
  };
}