import { ContentGenerator, OptimizationOptions } from "@mintel/content-engine";
import * as fs from "node:fs/promises";
import * as path from "node:path";
import { fileURLToPath } from "node:url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

async function main() {
    const OPENROUTER_KEY = process.env.OPENROUTER_KEY;
    if (!OPENROUTER_KEY) {
        console.error("❌ Error: OPENROUTER_KEY not found in environment.");
        process.exit(1);
    }

    const args = process.argv.slice(2);
    let targetFile = args[0];

    if (!targetFile) {
        console.error("❌ Usage: npx tsx scripts/optimize-blog-post.ts <path/to/post.mdx>");
        process.exit(1);
    }

    // Resolve absolute path
    if (!path.isAbsolute(targetFile)) {
        targetFile = path.resolve(process.cwd(), targetFile);
    }

    console.log(`📄 Reading file: ${targetFile}`);
    let content = "";
    try {
        content = await fs.readFile(targetFile, "utf8");
    } catch (err: any) {
        console.error(`❌ Could not read file: ${err.message}`);
        process.exit(1);
    }

    // Backup original
    const backupPath = `${targetFile}.bak`;
    await fs.writeFile(backupPath, content);
    console.log(`💾 Backup created at: ${backupPath}`);

    // Instantiate Generator
    const generator = new ContentGenerator(OPENROUTER_KEY);

    const context = `
  Project: Mintel.me
  Style: Industrial, Technical, High-Performance, "No-BS".
  Author: Marc Mintel (Digital Architect).
  Focus: Web Architecture, PageSpeed, Core Web Vitals, Data-Driven Design.
  `;

    // Define Optimization Options based on user request ("astrein verbessert mit daten gestützt, links zu quellen usw... mermaid, memes")
    const options: OptimizationOptions = {
        enhanceFacts: true,
        addMemes: true,
        addDiagrams: true,
        projectContext: context,
        availableComponents: [
            {
                name: "StatsDisplay",
                description: "A row of 3 clear statistic cards with values and labels.",
                usageExample: `<StatsDisplay
  items={[
    { value: "-20%", label: "Conversion", description: "Source: Google" },
    { value: "53%", label: "Bounce Rate", description: "Mobile users > 3s" },
    { value: "0.1s", label: "Latency", description: "Edge Network" }
  ]}
/>`
            },
            {
                name: "ComparisonRow",
                description: "A comparison component showing a negative 'Standard' vs a positive 'Mintel' approach.",
                usageExample: `<ComparisonRow
  description="Architecture Comparison"
  negativeLabel="Legacy CMS"
  negativeText="Slow database queries, vulnerable plugins."
  positiveLabel="Mintel Stack"
  positiveText="Static generation, perfect security."
/>`
            }
        ]
    };

    // 1. Separate Frontmatter from Body
    const fmMatch = content.match(/^---\n([\s\S]*?)\n---/);
    const frontmatter = fmMatch ? fmMatch[0] : "";
    const body = fmMatch ? content.replace(frontmatter, "").trim() : content;

    console.log("🚀 Starting Optimization via ContentEngine...");
    const result = await generator.optimizePost(body, options);

    console.log("✅ Optimization Complete!");
    console.log(`   - Added ${result.research.length} facts`);
    console.log(`   - Added ${result.memes.length} meme concepts`);
    console.log(`   - Generated ${result.diagrams.length} diagrams`);

    // We write the content back (re-attaching frontmatter if it was there)
    const finalContent = frontmatter ? `${frontmatter}\n\n${result.content}` : result.content;

    await fs.writeFile(targetFile, finalContent);

    console.log(`💾 Saved optimized content to: ${targetFile}`);
}

main().catch(console.error);