/* patch_control.mjs — v17: joystick theo hướng camera + nhân vật kiểu cầu thủ MU
   FIX A (joystick lệch hướng):
   Trước đây input joystick map thẳng {x:dx, z:-dy} vào tọa độ THẾ GIỚI →
   atan2(mx,mz) → kéo "lên màn hình" (dy<0) = +z thế giới = đi RA SÂN, trong khi
   camera nhìn về -z → ngược với cảm nhận màn hình.
   FIX: xoay hệ quy chiếu theo yaw camera (me.rot): kéo lên = đi xa camera
   (forward), kéo phải = đi bên phải màn hình (right = forward × up).
   FIX B (nhân vật chưa giống hangmu.online):
   Model cũ chỉ là capsule trơn. Nâng cấp thành cầu thủ MU: tóc đen, áo đỏ
   bo tròn + cổ trắng, tay áo đỏ (cẳng tay màu da), quần đùi đen, tất đỏ,
   giày trắng — giữ nguyên yOff/gy/held ở render scope (tránh crash v15).
   Nếu pattern lệch -> exit(1) để build fail. */
import fs from 'node:fs'

function patchFile(path, reps) {
  let s = fs.readFileSync(path, 'utf8')
  const failures = []
  for (const [oldStr, newStr] of reps) {
    const count = s.split(oldStr).length - 1
    if (count === 1) { s = s.replace(oldStr, newStr); continue }
    failures.push(`pattern not unique/found (count=${count}): ${oldStr.slice(0, 80)}`)
  }
  if (failures.length) {
    console.error(`PATCH CONTROL FAILED (${path}):`)
    failures.forEach((f) => console.error(' -', f))
    process.exit(1)
  }
  fs.writeFileSync(path, s)
  console.log('patched ok:', path)
}

patchFile('frontend/app.js', [
  /* ---- (1) ref bám vị trí mỗi frame, giữ render-scope consts ---- */
  [
    `  useFrame((_, dt) => { bob.current += dt * (anim || 1) })
  const yOff = anim ? Math.sin(bob.current * 1.2) * 0.12 : 0
  const gy = floorHeight(Math.hypot(p.pos.x, p.pos.z)) + yOff
  const held = p.holding ? 0.15 : 0
  return (
    <group position={[p.pos.x, gy + held, p.pos.z]} rotation={[0, p.rot, 0]}>`,
    `  useFrame((_, dt) => {
    bob.current += dt * (anim || 1)
    // Movement MUTATE me.pos mà KHÔNG gọi set() -> React không re-render.
    // Cập nhật imperative qua ref để avatar di chuyển mượt theo đúng phím.
    if (rootRef.current) {
      rootRef.current.position.set(p.pos.x, floorHeight(Math.hypot(p.pos.x, p.pos.z)) + (p.holding ? 0.15 : 0), p.pos.z)
      rootRef.current.rotation.y = p.rot
    }
  })
  const yOff = anim ? Math.sin(bob.current * 1.2) * 0.12 : 0
  const gy = floorHeight(Math.hypot(p.pos.x, p.pos.z)) + yOff
  const held = p.holding ? 0.15 : 0
  return (
    <group ref={rootRef} position={[p.pos.x, gy + held, p.pos.z]} rotation={[0, p.rot, 0]}>`,
  ],
  [
    `  const bob = React.useRef(0)
  const anim = p.anim === 'run' ? 14 : (p.anim === 'walk' ? 8 : 0)
  useFrame((_, dt) => { bob.current += dt * (anim || 1) })`,
    `  const bob = React.useRef(0)
  const rootRef = React.useRef(null)
  const anim = p.anim === 'run' ? 14 : (p.anim === 'walk' ? 8 : 0)`,
  ],
  /* ---- (2) walkR 95 + guard chống vùng trống ---- */
  [
    `          const dist = Math.hypot(nx, nz)
          const walkR = 42
          if (dist > walkR) { nx *= walkR / dist; nz *= walkR / dist }`,
    `          const dist = Math.hypot(nx, nz)
          const walkR = 95
          if (dist > walkR) { nx *= walkR / dist; nz *= walkR / dist }
          // chống vùng trống: chưa ra sân ngoài (z<55) thì giữ trong bán kính sàn hang (61)
          if (nz < 55) {
            const d2 = Math.hypot(nx, nz)
            if (d2 > 61) { nx *= 61 / d2; nz *= 61 / d2 }
          }`,
  ],
  /* ---- (3) joystick: center reset theo {x,y} ---- */
  [
    `    const center = () => { joy.current = { x: 0, z: 0 }; if (knobRef.current) knobRef.current.style.transform = 'translate(-50%,-50%)' }`,
    `    const center = () => { joy.current = { x: 0, y: 0 }; if (knobRef.current) knobRef.current.style.transform = 'translate(-50%,-50%)' }`,
  ],
  /* ---- (4) joystick: lưu {x: dx, y: -dy} (dy<0 = kéo lên màn hình) ---- */
  [
    `      joy.current = { x: dx, z: -dy }`,
    `      joy.current = { x: dx, y: -dy }`,
  ],
  /* ---- (5) joystick: xoay theo hướng camera (kéo lên = đi xa camera) ---- */
  [
    `        if (touch && (joy.current.x || joy.current.z)) { mx = joy.current.x; mz = joy.current.z }`,
    `        if (touch && (joy.current.x || joy.current.y)) {
          const cy = me.rot
          const fx = -Math.sin(cy), fz = -Math.cos(cy)
          const rx = Math.cos(cy), rz = -Math.sin(cy)
          mx = fx * joy.current.y + rx * joy.current.x
          mz = fz * joy.current.y + rz * joy.current.x
        }`,
  ],
  /* ---- (6) đầu + tóc đen ngắn ---- */
  [
    `      <mesh castShadow position={[0, 2.55 + yOff, 0]}>
        <sphereGeometry args={[0.45, 16, 16]} />
        <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
      </mesh>`,
    `      <group position={[0, 2.55 + yOff, 0]}>
        <mesh castShadow>
          <sphereGeometry args={[0.45, 16, 16]} />
          <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
        </mesh>
        <mesh castShadow position={[0, 0.13, -0.02]} scale={[1.05, 0.8, 1.05]}>
          <sphereGeometry args={[0.45, 16, 12, 0, Math.PI * 2, 0, Math.PI * 0.74]} />
          <meshStandardMaterial color={0x1c1610} roughness={0.92} />
        </mesh>
      </group>`,
  ],
  /* ---- (7) thân: áo đỏ + quần đùi đen + cổ trắng ---- */
  [
    `      <mesh castShadow position={[0, 1.05 + yOff, 0]}>
        <capsuleGeometry args={[0.5, 1.5, 4, 8]} />
        <meshStandardMaterial color={color} roughness={0.7} metalness={0.1} />
      </mesh>`,
    `      <mesh castShadow position={[0, 1.62 + yOff, 0]}>
        <capsuleGeometry args={[0.53, 1.26, 4, 10]} />
        <meshStandardMaterial color={color} roughness={0.72} metalness={0.08} />
      </mesh>
      <mesh castShadow position={[0, 0.72 + yOff, 0]} scale={[1.28, 0.62, 1.05]}>
        <sphereGeometry args={[0.42, 10, 8]} />
        <meshStandardMaterial color={0x14141f} roughness={0.85} />
      </mesh>
      <mesh position={[0, 2.2 + yOff, 0]}>
        <torusGeometry args={[0.3, 0.06, 6, 18]} />
        <meshStandardMaterial color="#e8e8e8" roughness={0.55} />
      </mesh>`,
  ],
  /* ---- (8a) tay trái ---- */
  [
    `      <group position={[-0.78, 2.05 + yOff, 0]}>
        <mesh castShadow rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0.35]}>
          <capsuleGeometry args={[0.16, 0.85, 4, 8]} />
          <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
        </mesh>
      </group>`,
    `      <group position={[-0.78, 2.05 + yOff, 0]}>
        <mesh castShadow rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0.35]}>
          <capsuleGeometry args={[0.19, 0.5, 4, 8]} />
          <meshStandardMaterial color={color} roughness={0.72} />
        </mesh>
        <mesh castShadow position={[0, -0.48, 0]} rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0.35]}>
          <capsuleGeometry args={[0.145, 0.46, 4, 8]} />
          <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
        </mesh>
      </group>`,
  ],
  /* ---- (8b) tay phải ---- */
  [
    `      <group position={[0.78, 2.05 + yOff, 0]}>
        <mesh castShadow rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, -0.35]}>
          <capsuleGeometry args={[0.16, 0.85, 4, 8]} />
          <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
        </mesh>
      </group>`,
    `      <group position={[0.78, 2.05 + yOff, 0]}>
        <mesh castShadow rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, -0.35]}>
          <capsuleGeometry args={[0.19, 0.5, 4, 8]} />
          <meshStandardMaterial color={color} roughness={0.72} />
        </mesh>
        <mesh castShadow position={[0, -0.48, 0]} rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, -0.35]}>
          <capsuleGeometry args={[0.145, 0.46, 4, 8]} />
          <meshStandardMaterial color={0xfdbcb4} roughness={0.9} />
        </mesh>
      </group>`,
  ],
  /* ---- (9a) chân trái: đùi đen + tất đỏ ---- */
  [
    `      <group position={[-0.22, 1.0 + yOff, 0]}>
        <mesh castShadow rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.18, 0.95, 4, 8]} />
          <meshStandardMaterial color={0x14141f} roughness={0.8} metalness={0.1} />
        </mesh>
      </group>`,
    `      <group position={[-0.22, 1.0 + yOff, 0]}>
        <mesh castShadow rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.18, 0.55, 4, 8]} />
          <meshStandardMaterial color={0x14141f} roughness={0.8} metalness={0.1} />
        </mesh>
        <mesh castShadow position={[0, -0.42, 0.03]} rotation={[Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.17, 0.3, 4, 8]} />
          <meshStandardMaterial color={0xc8102e} roughness={0.8} />
        </mesh>
      </group>`,
  ],
  /* ---- (9b) chân phải ---- */
  [
    `      <group position={[0.22, 1.0 + yOff, 0]}>
        <mesh castShadow rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.18, 0.95, 4, 8]} />
          <meshStandardMaterial color={0x14141f} roughness={0.8} metalness={0.1} />
        </mesh>
      </group>`,
    `      <group position={[0.22, 1.0 + yOff, 0]}>
        <mesh castShadow rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.18, 0.55, 4, 8]} />
          <meshStandardMaterial color={0x14141f} roughness={0.8} metalness={0.1} />
        </mesh>
        <mesh castShadow position={[0, -0.42, 0.03]} rotation={[-Math.sin(bob.current * anim / 4) * 0.9, 0, 0]}>
          <capsuleGeometry args={[0.17, 0.3, 4, 8]} />
          <meshStandardMaterial color={0xc8102e} roughness={0.8} />
        </mesh>
      </group>`,
  ],
  /* ---- (10) giày trắng ---- */
  [
    `      <mesh position={[-0.09, 0.22 + yOff, 0.16]} rotation-x={0.25}>
        <boxGeometry args={[0.18, 0.09, 0.3]} />
        <meshStandardMaterial color={0x1a1a1a} roughness={0.5} metalness={0.15} />
      </mesh>
      <mesh position={[0.09, 0.22 + yOff, 0.16]} rotation-x={0.25}>
        <boxGeometry args={[0.18, 0.09, 0.3]} />
        <meshStandardMaterial color={0x1a1a1a} roughness={0.5} metalness={0.15} />
      </mesh>`,
    `      <mesh position={[-0.09, 0.22 + yOff, 0.16]} rotation-x={0.25}>
        <boxGeometry args={[0.18, 0.09, 0.3]} />
        <meshStandardMaterial color={0xf2f2f2} roughness={0.4} metalness={0.1} />
      </mesh>
      <mesh position={[0.09, 0.22 + yOff, 0.16]} rotation-x={0.25}>
        <boxGeometry args={[0.18, 0.09, 0.3]} />
        <meshStandardMaterial color={0xf2f2f2} roughness={0.4} metalness={0.1} />
      </mesh>`,
  ],
])

console.log('patch_control.mjs OK — camera-relative joystick + MU player model applied')