'use strict';

// === WEAPON DRAWING ===

function drawWeaponHeld(weapon, px, py, dir) {
  const def = WEAPONS.find(w => w.name === weapon.name || w.id === weapon.id);
  if (!def || !def.drawFunction) return;
  const drawFn = window[def.drawFunction];
  if (typeof drawFn !== 'function') return;
  drawFn(ctx, px, py, dir);
}

function drawWeaponInHUD(weapon, x, y) {
  const def = WEAPONS.find(w => w.name === weapon.name || w.id === weapon.id);
  if (!def || !drawWeaponIcon) return;
  drawWeaponIcon(ctx, def, x, y);
}

// Sword
function drawSwordHeld(ctx, px, py, dir) {
  ctx.fillStyle = COLORS.swordBlade;
  const sx = px + TILE / 2 + DIRS[dir].x * 10;
  const sy = py + TILE / 2 + DIRS[dir].y * 10;
  ctx.fillRect(sx - 2, sy - 2, 4, 4);
  ctx.fillStyle = COLORS.swordHandle;
  const hx = px + TILE / 2 + DIRS[dir].x * 5;
  const hy = py + TILE / 2 + DIRS[dir].y * 5;
  ctx.fillRect(hx - 1.5, hy - 1.5, 3, 3);
}

function drawMasterSwordHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#E8E8FF';
  const sx = px + TILE / 2 + DIRS[dir].x * 12;
  const sy = py + TILE / 2 + DIRS[dir].y * 12;
  ctx.fillRect(sx - 2, sy - 2, 4, 4);
  // Aura
  ctx.fillStyle = 'rgba(100,100,255,0.3)';
  ctx.beginPath();
  ctx.arc(sx, sy, 6, 0, Math.PI * 2);
  ctx.fill();
  ctx.fillStyle = '#DAA520';
  const hx = px + TILE / 2 + DIRS[dir].x * 5;
  const hy = py + TILE / 2 + DIRS[dir].y * 5;
  ctx.fillRect(hx - 2, hy - 2, 4, 4);
}

// Bow
function drawBowHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#8B4513';
  const bx = px + TILE / 2 + DIRS[dir].x * 6;
  const by = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.beginPath();
  if (dir === 0 || dir === 1) {
    ctx.arc(bx, by, 6, dir === 0 ? -0.8 : 0.8, dir === 0 ? 0.8 : 2.4);
  } else {
    ctx.arc(bx, by, 6, dir === 2 ? 0.3 : 2.9, dir === 2 ? 1.1 : 3.7);
  }
  ctx.strokeStyle = '#8B4513';
  ctx.lineWidth = 2;
  ctx.stroke();
  // String
  ctx.strokeStyle = '#FFFFFF';
  ctx.lineWidth = 1;
  ctx.beginPath();
  ctx.moveTo(bx + DIRS[dir].x * 2, by + DIRS[dir].y * 2);
  ctx.lineTo(bx - DIRS[dir].x * 2, by - DIRS[dir].y * 2);
  ctx.stroke();
}

// Boomerang
function drawBoomerangHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#FFD700';
  const bx = px + TILE / 2 + DIRS[dir].x * 8;
  const by = py + TILE / 2 + DIRS[dir].y * 8;
  ctx.beginPath();
  ctx.moveTo(bx, by);
  ctx.lineTo(bx + DIRS[dir].x * 4, by + DIRS[dir].y * 2);
  ctx.lineTo(bx + DIRS[dir].x * 2, by + DIRS[dir].y * 4);
  ctx.closePath();
  ctx.fill();
}

// Bombs
function drawBombHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#333';
  const bx = px + TILE / 2 + DIRS[dir].x * 6;
  const by = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.beginPath();
  ctx.arc(bx, by, 4, 0, Math.PI * 2);
  ctx.fill();
  ctx.fillStyle = '#FF0000';
  ctx.fillRect(bx - 1, by - 6, 2, 3);
}

// Hammer
function drawHammerHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#8B4513';
  const hx = px + TILE / 2 + DIRS[dir].x * 8;
  const hy = py + TILE / 2 + DIRS[dir].y * 8;
  ctx.fillRect(hx - 1, hy - 1, 3, 10);
  ctx.fillStyle = '#666';
  ctx.fillRect(hx - 4, hy - 5, 8, 6);
}

// Fire Rod
function drawFireRodHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#8B4513';
  const rx = px + TILE / 2 + DIRS[dir].x * 6;
  const ry = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.fillRect(rx - 1, ry - 1, 3, 8);
  ctx.fillStyle = '#FFD700';
  ctx.beginPath();
  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 3, 0, Math.PI * 2);
  ctx.fill();
  ctx.fillStyle = '#FF4500';
  ctx.beginPath();
  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 2, 0, Math.PI * 2);
  ctx.fill();
}

// Ice Rod
function drawIceRodHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#8B4513';
  const rx = px + TILE / 2 + DIRS[dir].x * 6;
  const ry = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.fillRect(rx - 1, ry - 1, 3, 8);
  ctx.fillStyle = '#B0E0E6';
  ctx.beginPath();
  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 3, 0, Math.PI * 2);
  ctx.fill();
  ctx.fillStyle = '#00BFFF';
  ctx.beginPath();
  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 2, 0, Math.PI * 2);
  ctx.fill();
}

// Slingshot
function drawSlingshotHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#8B4513';
  const sx = px + TILE / 2 + DIRS[dir].x * 6;
  const sy = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.beginPath();
  ctx.moveTo(sx - 3, sy);
  ctx.lineTo(sx, sy - 4);
  ctx.lineTo(sx + 3, sy);
  ctx.strokeStyle = '#8B4513';
  ctx.lineWidth = 2;
  ctx.stroke();
  ctx.strokeStyle = '#DEB887';
  ctx.lineWidth = 1;
  ctx.beginPath();
  ctx.moveTo(sx - 3, sy);
  ctx.lineTo(sx + 3, sy);
  ctx.stroke();
}

// Hookshot
function drawHookshotHeld(ctx, px, py, dir) {
  ctx.fillStyle = '#C0C0C0';
  const hx = px + TILE / 2 + DIRS[dir].x * 6;
  const hy = py + TILE / 2 + DIRS[dir].y * 6;
  ctx.fillRect(hx - 1, hy - 1, 3, 8);
  ctx.fillStyle = '#808080';
  ctx.beginPath();
  ctx.arc(hx + DIRS[dir].x * 2, hy + DIRS[dir].y * 2, 3, 0, Math.PI);
  ctx.strokeStyle = '#808080';
  ctx.lineWidth = 2;
  ctx.stroke();
}

// Register weapon draw functions
const WEAPON_DRAW = {
  sword: { held: drawSwordHeld },
  master_sword: { held: drawMasterSwordHeld },
  bow: { held: drawBowHeld },
  boomerang: { held: drawBoomerangHeld },
  bomb: { held: drawBombHeld },
  hammer: { held: drawHammerHeld },
  fire_rod: { held: drawFireRodHeld },
  ice_rod: { held: drawIceRodHeld },
  slingshot: { held: drawSlingshotHeld },
  hookshot: { held: drawHookshotHeld },
};

function drawWeaponIcon(ctx, weapon, x, y) {
  const drawFn = WEAPON_DRAW[weapon.id];
  if (drawFn && drawFn.held) {
    ctx.save();
    drawFn.held(ctx, x, y, 0);
    ctx.restore();
  } else {
    ctx.fillStyle = weapon.color || '#C0C0C0';
    ctx.fillRect(x - 3, y - 8, 6, 16);
  }
}

if (typeof module !== 'undefined' && module.exports) {
  module.exports = { drawWeaponHeld, drawWeaponInHUD, drawSwordHeld, drawMasterSwordHeld, drawBowHeld, drawBoomerangHeld, drawBombHeld, drawHammerHeld, drawFireRodHeld, drawIceRodHeld, drawSlingshotHeld, drawHookshotHeld, drawWeaponIcon };
}