// Seeds the system account, catalog and the pre-made official games.
// Worlds are generated procedurally — no asset files anywhere.
const crypto = require('crypto');
const { get, saveNow, uid } = require('./db');
const CATALOG = require('./catalog');

let nextPart = 1;
function P(type, x, y, z, sx, sy, sz, color, extra) {
  return Object.assign(
    { id: 'p' + nextPart++, type, x, y, z, sx, sy, sz, color },
    extra || {}
  );
}

function baseplate(parts, size, color) {
  parts.push(P('block', 0, -0.5, 0, size, 1, size, color || '#3aa14f'));
}

// ---------- Game 1: Tower of Bother (obby) ----------
function buildObby() {
  const parts = [];
  nextPart = 1;
  parts.push(P('block', 0, -0.5, 0, 24, 1, 24, '#3aa14f'));
  parts.push(P('spawn', 0, 0.25, 8, 6, 0.5, 6, '#cfd8dc'));

  const palette = ['#e54b4b', '#f0a020', '#ffd23f', '#3aa14f', '#2a7de1', '#8a4fff'];
  let z = -2, y = 0, stage = 0;
  const rnd = (() => { let s = 1234567; return () => (s = (s * 16807) % 2147483647) / 2147483647; })();

  for (let i = 0; i < 38; i++) {
    const c = palette[i % palette.length];
    const w = 4 - Math.min(2, Math.floor(i / 12));
    const gap = 4 + Math.floor(i / 10);
    z -= gap + w / 2;
    y += 0.8 + rnd() * 1.4;
    const x = Math.round((rnd() - 0.5) * 8);

    if (i % 7 === 3) {
      // moving platform hop
      parts.push(P('mover', x, y, z, w, 1, w, '#9b59b6', { dx: 6, dy: 0, dz: 0, period: 3.5 }));
    } else if (i % 7 === 5) {
      // kill brick flanked jump
      parts.push(P('block', x, y, z, w + 4, 1, w, c));
      parts.push(P('kill', x, y + 0.55, z, w + 4, 0.2, w / 2, '#d40000'));
      parts.push(P('block', x, y + 0.55, z - w / 2 + 0.4, w + 4, 0.2, 0.8, c));
    } else if (i % 11 === 9) {
      parts.push(P('bounce', x, y, z, w, 1, w, '#ffe14d'));
      y += 4;
    } else {
      parts.push(P('block', x, y, z, w, 1, w, c));
    }

    if (i > 0 && i % 6 === 0) {
      stage++;
      parts.push(P('checkpoint', x, y + 0.75, z, 2.5, 0.5, 2.5, '#19c2ff', { stage }));
    }
    if (i % 5 === 2) {
      parts.push(P('coin', x, y + 2, z, 1, 1, 1, '#ffd700'));
    }
  }
  // summit
  z -= 8;
  y += 2;
  parts.push(P('block', 0, y, z, 10, 1, 10, '#ffffff'));
  parts.push(P('goal', 0, y + 1, z, 4, 2, 4, '#19ff8c'));
  parts.push(P('deco', 0, y + 6, z, 1, 8, 1, '#e54b4b'));
  return parts;
}

// ---------- Game 2: Glimmer Rush (coin collect) ----------
function buildCollect() {
  const parts = [];
  nextPart = 1;
  baseplate(parts, 80, '#3d9650');
  parts.push(P('spawn', 0, 0.25, 0, 8, 0.5, 8, '#cfd8dc'));

  const rnd = (() => { let s = 424242; return () => (s = (s * 16807) % 2147483647) / 2147483647; })();
  // scattered terrain blocks + ramps of stacked slabs
  for (let i = 0; i < 26; i++) {
    const x = Math.round((rnd() - 0.5) * 64);
    const z = Math.round((rnd() - 0.5) * 64);
    if (Math.abs(x) < 8 && Math.abs(z) < 8) continue;
    const h = 1 + Math.floor(rnd() * 4);
    const w = 3 + Math.floor(rnd() * 6);
    const cols = ['#7a5230', '#8d6e63', '#6d4c41', '#5d8a3c'];
    parts.push(P('block', x, h / 2, z, w, h, w, cols[i % 4]));
    if (rnd() > 0.4) parts.push(P('coin', x, h + 1.2, z, 1, 1, 1, '#ffd700'));
  }
  // floating coin rings
  for (let r = 0; r < 3; r++) {
    const cy = 6 + r * 5;
    for (let a = 0; a < 8; a++) {
      const ang = (a / 8) * Math.PI * 2;
      parts.push(P('coin', Math.cos(ang) * (14 + r * 8), cy, Math.sin(ang) * (14 + r * 8), 1, 1, 1, '#ffd700'));
    }
    parts.push(P('mover', 14 + r * 8, cy - 1.5, 0, 4, 1, 4, '#9b59b6', { dx: 0, dy: 4, dz: 0, period: 4 + r }));
  }
  // bounce pads to reach rings
  parts.push(P('bounce', 10, 0.55, 10, 4, 1, 4, '#ffe14d'));
  parts.push(P('bounce', -10, 0.55, -10, 4, 1, 4, '#ffe14d'));
  parts.push(P('speed', 0, 0.05, 20, 6, 0.1, 12, '#19c2ff'));
  // central lake
  parts.push(P('water', 28, 0.5, -28, 20, 3, 20, '#2a7de1'));
  for (let a = 0; a < 5; a++) parts.push(P('coin', 24 + a * 2, 1.5, -24 - a * 2, 1, 1, 1, '#ffd700'));
  return parts;
}

// ---------- Game 3: Zap Tag (tag arena) ----------
function buildTag() {
  const parts = [];
  nextPart = 1;
  baseplate(parts, 56, '#4a6b8a');
  parts.push(P('spawn', 0, 0.25, 0, 10, 0.5, 10, '#cfd8dc'));
  // arena walls
  const W = 56;
  parts.push(P('block', 0, 2, -W / 2, W, 4, 1, '#37474f'));
  parts.push(P('block', 0, 2, W / 2, W, 4, 1, '#37474f'));
  parts.push(P('block', -W / 2, 2, 0, 1, 4, W, '#37474f'));
  parts.push(P('block', W / 2, 2, 0, 1, 4, W, '#37474f'));
  // cover pillars + catwalks
  const spots = [[-16, -16], [16, -16], [-16, 16], [16, 16], [0, -20], [0, 20], [-20, 0], [20, 0]];
  for (const [x, z] of spots) {
    parts.push(P('block', x, 2.5, z, 4, 5, 4, '#ff8f3c'));
  }
  parts.push(P('block', 0, 5.5, -16, 36, 1, 4, '#cfd8dc'));
  parts.push(P('block', 0, 5.5, 16, 36, 1, 4, '#cfd8dc'));
  parts.push(P('block', -16, 5.5, 0, 4, 1, 28, '#cfd8dc'));
  parts.push(P('block', 16, 5.5, 0, 4, 1, 28, '#cfd8dc'));
  parts.push(P('bounce', 0, 0.55, -8, 3, 1, 3, '#ffe14d'));
  parts.push(P('bounce', 0, 0.55, 8, 3, 1, 3, '#ffe14d'));
  parts.push(P('speed', -24, 0.05, 0, 4, 0.1, 40, '#19c2ff'));
  parts.push(P('speed', 24, 0.05, 0, 4, 0.1, 40, '#19c2ff'));
  // teleporter pair for escapes
  parts.push(P('tele', -24, 0.3, -24, 3, 0.6, 3, '#8a4fff', { channel: 1 }));
  parts.push(P('tele', 24, 0.3, 24, 3, 0.6, 3, '#8a4fff', { channel: 1 }));
  return parts;
}

// ---------- Game 4: Blockworks Plaza (social sandbox / showcase) ----------
function buildPlaza() {
  const parts = [];
  nextPart = 1;
  baseplate(parts, 72, '#9e9e9e');
  parts.push(P('spawn', 0, 0.25, 24, 8, 0.5, 8, '#cfd8dc'));
  // fountain
  parts.push(P('block', 0, 0.5, 0, 12, 1, 12, '#b0bec5'));
  parts.push(P('water', 0, 1.4, 0, 10, 0.8, 10, '#2a7de1'));
  parts.push(P('deco', 0, 3, 0, 2, 4, 2, '#b0bec5'));
  parts.push(P('mover', 0, 6, 0, 1.5, 1.5, 1.5, '#19c2ff', { dx: 0, dy: 2, dz: 0, period: 2 }));
  // four little shops around plaza
  const shops = [
    [-24, -24, '#e54b4b'], [24, -24, '#2a7de1'], [-24, 24, '#f0a020'], [24, 24, '#8a4fff'],
  ];
  for (const [x, z, c] of shops) {
    parts.push(P('block', x, 2.5, z, 10, 5, 10, c));            // walls
    parts.push(P('block', x, 5.4, z, 12, 0.8, 12, '#37474f'));  // roof
    parts.push(P('block', x, 1, z + 5.2, 3, 2, 0.4, '#00000000' === c ? c : '#262626')); // doorway mark
  }
  // park strip with trees (trunk + leaf cubes)
  for (let i = 0; i < 6; i++) {
    const x = -30 + i * 12, z = -8;
    parts.push(P('deco', x, 1.5, z, 1, 3, 1, '#6d4c41'));
    parts.push(P('deco', x, 4, z, 3.5, 3, 3.5, '#2e7d32'));
  }
  // dance floor of colored speed pads
  for (let i = 0; i < 4; i++)
    for (let j = 0; j < 4; j++)
      parts.push(P('block', -6 + i * 4, 0.05, -26 + j * 4, 4, 0.1,
        4, ['#e54b4b', '#ffd23f', '#19c2ff', '#19ff8c'][(i + j) % 4]));
  // observation tower with teleporter up
  parts.push(P('block', 30, 7, 0, 6, 14, 6, '#78909c'));
  parts.push(P('block', 30, 14.5, 0, 10, 1, 10, '#cfd8dc'));
  parts.push(P('tele', 30, 0.3, 6, 3, 0.6, 3, '#8a4fff', { channel: 1 }));
  parts.push(P('tele', 30, 15.3, 0, 3, 0.6, 3, '#8a4fff', { channel: 1 }));
  parts.push(P('coin', 30, 16.5, 0, 1, 1, 1, '#ffd700'));
  return parts;
}

function makeGame(db, owner, def) {
  const id = uid(10);
  db.games[id] = {
    id,
    name: def.name,
    desc: def.desc,
    genre: def.genre,
    ownerId: owner.id,
    collaborators: [],
    public: true,
    official: true,
    created: Date.now(),
    updated: Date.now(),
    visits: 0,
    likes: [],
    favorites: [],
    config: Object.assign(
      { maxPlayers: 12, mode: 'sandbox', gravity: 50, walkSpeed: 12, jumpPower: 20, respawnTime: 2 },
      def.config
    ),
    world: { parts: def.parts },
  };
  return db.games[id];
}

function seed() {
  const db = get();
  db.catalog = CATALOG;

  if (!Object.values(db.users).some((u) => u.system)) {
    const id = uid(10);
    db.users[id] = {
      id,
      username: 'Glint',
      system: true,
      // random unguessable password — nobody logs in as the system user
      passhash: crypto.randomBytes(32).toString('hex'),
      salt: crypto.randomBytes(16).toString('hex'),
      created: Date.now(),
      glimmers: 0,
      avatar: {
        bodyColors: { head: '#ffd23f', torso: '#19c2ff', leftArm: '#ffd23f', rightArm: '#ffd23f', leftLeg: '#37474f', rightLeg: '#37474f' },
        hat: 'hat_crown',
        face: 'face_cool',
      },
      inventory: CATALOG.map((c) => c.id),
      friends: [],
      friendRequests: [],
      stats: { visitsReceived: 0, joins: 0 },
    };
  }
  const sys = Object.values(db.users).find((u) => u.system);

  if (!Object.values(db.games).some((g) => g.official)) {
    makeGame(db, sys, {
      name: 'Tower of Bother',
      desc: 'The classic climb. 38 platforms of pure spite. Checkpoints are your friends; the red bricks are not. First to the green summit pad wins glory.',
      genre: 'Obby',
      config: { mode: 'obby', maxPlayers: 16 },
      parts: buildObby(),
    });
    makeGame(db, sys, {
      name: 'Glimmer Rush',
      desc: 'Coins everywhere — on hills, in rings, over the lake. Grab the most before everyone else does. Coins respawn, greed is forever.',
      genre: 'Collecting',
      config: { mode: 'collect', maxPlayers: 12 },
      parts: buildCollect(),
    });
    makeGame(db, sys, {
      name: 'Zap Tag',
      desc: 'One player is Zapped. Touch someone to pass it on. Teleporters, speed lanes and bounce pads keep the chase spicy. Don\'t be holding the zap.',
      genre: 'Tag',
      config: { mode: 'tag', maxPlayers: 10, walkSpeed: 14 },
      parts: buildTag(),
    });
    makeGame(db, sys, {
      name: 'Blockworks Plaza',
      desc: 'Hang out, dance on the light floor, ride the fountain, take the teleporter up the tower. A chill social plaza — bring friends.',
      genre: 'Social',
      config: { mode: 'sandbox', maxPlayers: 20 },
      parts: buildPlaza(),
    });
  }
  saveNow();
}

module.exports = { seed };