const bcrypt = require('bcryptjs');
const { collections, FieldValue } = require('./firestore');

function slug(s) {
  return s.toLowerCase().replace(/[^a-z0-9]+/g, '-').replace(/^-|-$/g, '');
}

async function seed() {
  try {
    // Demo user
    const demoEmail = 'demo@bolt.run';
    const existing = await collections.users.where('email', '==', demoEmail).limit(1).get();
    if (existing.empty) {
      const hash = await bcrypt.hash('password123', 10);
      const ref = collections.users.doc();
      await ref.set({
        name: 'Demo Runner',
        email: demoEmail,
        password_hash: hash,
        avatar_url: null,
        weight_kg: 70,
        height_cm: 175,
        date_of_birth: null,
        total_runs: 0,
        total_distance_km: 0,
        total_duration_sec: 0,
        total_calories: 0,
        created_at: FieldValue.serverTimestamp(),
        updated_at: FieldValue.serverTimestamp(),
      });
      console.log('  + demo user created');
    } else {
      console.log('  · demo user exists');
    }

    // Programs (deterministic doc IDs from title slug for idempotent seed)
    const programs = [
      { title: '5K Beginner Plan', description: 'Go from couch to 5K in 8 weeks', coach_name: 'Eliud Kipchoge', duration_weeks: 8, sessions_per_week: 3, difficulty: 'beginner', category: '5K', is_featured: true },
      { title: '10K Speed Builder', description: 'Build speed and endurance for 10K', coach_name: 'Joshua Cheptegei', duration_weeks: 10, sessions_per_week: 4, difficulty: 'intermediate', category: '10K', is_featured: true },
      { title: 'Half Marathon Prep', description: 'Complete your first half marathon', coach_name: 'Brigid Kosgei', duration_weeks: 12, sessions_per_week: 5, difficulty: 'intermediate', category: 'Half Marathon', is_featured: false },
      { title: 'Marathon Masters', description: 'Advanced marathon training plan', coach_name: 'Kenenisa Bekele', duration_weeks: 16, sessions_per_week: 6, difficulty: 'advanced', category: 'Marathon', is_featured: false },
    ];
    for (const p of programs) {
      const id = slug(p.title);
      const ref = collections.programs.doc(id);
      const snap = await ref.get();
      if (!snap.exists) {
        await ref.set({
          ...p,
          coach_avatar_url: null,
          image_url: null,
          total_enrolled: 0,
          created_at: FieldValue.serverTimestamp(),
        });
        console.log(`  + program "${p.title}"`);
      }
    }

    // Clubs
    const clubs = [
      { name: 'Morning Milers', description: 'Early birds who love the sunrise run', location: 'New York, NY', member_count: 124 },
      { name: 'Trail Blazers', description: 'Off-road and trail running enthusiasts', location: 'Denver, CO', member_count: 89 },
      { name: 'Speed Demons', description: 'Track and interval training focus', location: 'Los Angeles, CA', member_count: 203 },
      { name: 'Weekend Warriors', description: 'Casual runners, serious fun', location: 'Chicago, IL', member_count: 156 },
    ];
    for (const c of clubs) {
      const id = slug(c.name);
      const ref = collections.clubs.doc(id);
      const snap = await ref.get();
      if (!snap.exists) {
        await ref.set({
          ...c,
          avatar_url: null,
          cover_url: null,
          is_public: true,
          created_by: null,
          created_at: FieldValue.serverTimestamp(),
        });
        console.log(`  + club "${c.name}"`);
      }
    }

    console.log('Seed complete.');
    process.exit(0);
  } catch (err) {
    console.error('Seed failed:', err);
    process.exit(1);
  }
}

seed();