import fs from 'node:fs/promises';
import path from 'node:path';
import { getDb } from '../db/index';

const DATA_DIR = process.env.DATA_DIR || path.join(process.cwd(), 'app', 'data');

export async function generateDraftConfig(): Promise<any> {
  const db = getDb();
  
  // 1. Globale Settings laden
  const settingsRow = db.prepare('SELECT value_json FROM site_settings WHERE key = ?').get('site_config') as { value_json: string } | undefined;
  const baseConfig = settingsRow ? JSON.parse(settingsRow.value_json) : {};

  // 2. Alle Seiten laden
  const pagesRows = db.prepare('SELECT * FROM pages ORDER BY created_at ASC').all() as any[];
  
  const pages = pagesRows.map((page) => {
    const sectionsRows = db.prepare('SELECT * FROM page_sections WHERE page_id = ? ORDER BY order_index ASC').all(page.id) as any[];
    
    const sections = sectionsRows.map((sec) => {
      const draftContent = JSON.parse(sec.content_draft_json || '{}');
      const styles = JSON.parse(sec.styles_json || '{}');
      return {
        id: sec.id,
        type: sec.section_type,
        settings: { ...draftContent, ...styles }
      };
    });

    return {
      id: page.id,
      slug: page.slug,
      title: page.title,
      is_published: page.status === 'published',
      sections
    };
  });

  const fullDraftConfig = {
    ...baseConfig,
    pages,
    updated_at: new Date().toISOString()
  };

  const draftPath = path.join(DATA_DIR, 'site.config.draft.json');
  await fs.mkdir(DATA_DIR, { recursive: true });
  await fs.writeFile(draftPath, JSON.stringify(fullDraftConfig, null, 2), 'utf-8');

  return fullDraftConfig;
}

export async function publishLiveConfig(): Promise<any> {
  const db = getDb();

  // 1. In DB: Setze content_published_json = content_draft_json für alle Sektionen
  db.exec('UPDATE page_sections SET content_published_json = content_draft_json');

  // 2. Globale Settings laden
  const settingsRow = db.prepare('SELECT value_json FROM site_settings WHERE key = ?').get('site_config') as { value_json: string } | undefined;
  const baseConfig = settingsRow ? JSON.parse(settingsRow.value_json) : {};

  // 3. Alle veröffentlichten Seiten laden
  const pagesRows = db.prepare('SELECT * FROM pages WHERE status = ? ORDER BY created_at ASC').all('published') as any[];
  
  const pages = pagesRows.map((page) => {
    const sectionsRows = db.prepare('SELECT * FROM page_sections WHERE page_id = ? ORDER BY order_index ASC').all(page.id) as any[];
    
    const sections = sectionsRows.map((sec) => {
      const pubContent = JSON.parse(sec.content_published_json || '{}');
      const styles = JSON.parse(sec.styles_json || '{}');
      return {
        id: sec.id,
        type: sec.section_type,
        settings: { ...pubContent, ...styles }
      };
    });

    return {
      id: page.id,
      slug: page.slug,
      title: page.title,
      is_published: true,
      sections
    };
  });

  const fullLiveConfig = {
    ...baseConfig,
    pages,
    updated_at: new Date().toISOString()
  };

  const livePath = path.join(DATA_DIR, 'site.config.json');
  await fs.mkdir(DATA_DIR, { recursive: true });
  await fs.writeFile(livePath, JSON.stringify(fullLiveConfig, null, 2), 'utf-8');

  return fullLiveConfig;
}