// ─── Loot Drop Definitions ─────────────────────────────────────────────────────

import type { LootDrop } from '../types/game';

export const LOOT_DROPS: Record<string, LootDrop> = {
  // ─── Materials (used for crafting) ───
  manaCrystalDust: {
    id: 'manaCrystalDust',
    name: 'Mana Crystal Dust',
    rarity: 'common',
    type: 'material',
    minFloor: 1,
    dropChance: 0.15,
  },
  arcaneShard: {
    id: 'arcaneShard',
    name: 'Arcane Shard',
    rarity: 'uncommon',
    type: 'material',
    minFloor: 10,
    dropChance: 0.10,
  },
  earthShard: {
    id: 'earthShard',
    name: 'Earth Attuned Shard',
    rarity: 'uncommon',
    type: 'material',
    minFloor: 10,
    dropChance: 0.08,
  },
  metalShard: {
    id: 'metalShard',
    name: 'Metal Attuned Shard',
    rarity: 'rare',
    type: 'material',
    minFloor: 20,
    dropChance: 0.06,
  },
  crystalShard: {
    id: 'crystalShard',
    name: 'Crystal Attuned Shard',
    rarity: 'rare',
    type: 'material',
    minFloor: 30,
    dropChance: 0.05,
  },
  sandShard: {
    id: 'sandShard',
    name: 'Sand Attuned Shard',
    rarity: 'uncommon',
    type: 'material',
    minFloor: 15,
    dropChance: 0.07,
  },
  manaCrystal: {
    id: 'manaCrystal',
    name: 'Mana Crystal',
    rarity: 'uncommon',
    type: 'material',
    minFloor: 5,
    dropChance: 0.10,
  },
  fireCrystal: {
    id: 'fireCrystal',
    name: 'Fire Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 15,
    dropChance: 0.06,
  },
  waterCrystal: {
    id: 'waterCrystal',
    name: 'Water Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 15,
    dropChance: 0.06,
  },
  airCrystal: {
    id: 'airCrystal',
    name: 'Air Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 15,
    dropChance: 0.06,
  },
  earthCrystal: {
    id: 'earthCrystal',
    name: 'Earth Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 15,
    dropChance: 0.06,
  },
  lightCrystal: {
    id: 'lightCrystal',
    name: 'Light Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 25,
    dropChance: 0.05,
  },
  darkCrystal: {
    id: 'darkCrystal',
    name: 'Dark Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 25,
    dropChance: 0.05,
  },
  metalCrystal: {
    id: 'metalCrystal',
    name: 'Metal Attuned Crystal',
    rarity: 'rare',
    type: 'material',
    minFloor: 30,
    dropChance: 0.05,
  },
  crystalCrystal: {
    id: 'crystalCrystal',
    name: 'Crystal Attuned Crystal',
    rarity: 'epic',
    type: 'material',
    minFloor: 40,
    dropChance: 0.03,
  },
  elementalCore: {
    id: 'elementalCore',
    name: 'Elemental Core',
    rarity: 'rare',
    type: 'material',
    minFloor: 25,
    dropChance: 0.08,
  },
  voidEssence: {
    id: 'voidEssence',
    name: 'Void Essence',
    rarity: 'epic',
    type: 'material',
    minFloor: 50,
    dropChance: 0.05,
    guardianOnly: true,
  },
  celestialFragment: {
    id: 'celestialFragment',
    name: 'Celestial Fragment',
    rarity: 'legendary',
    type: 'material',
    minFloor: 75,
    dropChance: 0.02,
    guardianOnly: true,
  },

  // ─── Elemental Essence (grants elemental mana) ───
  fireEssenceDrop: {
    id: 'fireEssenceDrop',
    name: 'Fire Essence',
    rarity: 'uncommon',
    type: 'essence',
    minFloor: 5,
    dropChance: 0.12,
    amount: { min: 5, max: 15 },
  },
  waterEssenceDrop: {
    id: 'waterEssenceDrop',
    name: 'Water Essence',
    rarity: 'uncommon',
    type: 'essence',
    minFloor: 5,
    dropChance: 0.12,
    amount: { min: 5, max: 15 },
  },
  airEssenceDrop: {
    id: 'airEssenceDrop',
    name: 'Air Essence',
    rarity: 'uncommon',
    type: 'essence',
    minFloor: 5,
    dropChance: 0.12,
    amount: { min: 5, max: 15 },
  },
  earthEssenceDrop: {
    id: 'earthEssenceDrop',
    name: 'Earth Essence',
    rarity: 'uncommon',
    type: 'essence',
    minFloor: 5,
    dropChance: 0.12,
    amount: { min: 5, max: 15 },
  },
  lightEssenceDrop: {
    id: 'lightEssenceDrop',
    name: 'Light Essence',
    rarity: 'rare',
    type: 'essence',
    minFloor: 20,
    dropChance: 0.08,
    amount: { min: 3, max: 10 },
  },
  darkEssenceDrop: {
    id: 'darkEssenceDrop',
    name: 'Dark Essence',
    rarity: 'rare',
    type: 'essence',
    minFloor: 20,
    dropChance: 0.08,
    amount: { min: 3, max: 10 },
  },
  vitalityEssenceDrop: {
    id: 'vitalityEssenceDrop',
    name: 'Vitality Essence',
    rarity: 'epic',
    type: 'essence',
    minFloor: 40,
    dropChance: 0.05,
    amount: { min: 2, max: 8 },
  },
  deathEssenceDrop: {
    id: 'deathEssenceDrop',
    name: 'Death Essence',
    rarity: 'epic',
    type: 'essence',
    minFloor: 40,
    dropChance: 0.05,
    amount: { min: 2, max: 8 },
  },

  // ─── Raw Mana Drops ───
  manaOrb: {
    id: 'manaOrb',
    name: 'Mana Orb',
    rarity: 'common',
    type: 'gold', // Uses gold type but gives raw mana
    minFloor: 1,
    dropChance: 0.20,
    amount: { min: 10, max: 50 },
  },
  greaterManaOrb: {
    id: 'greaterManaOrb',
    name: 'Greater Mana Orb',
    rarity: 'uncommon',
    type: 'gold',
    minFloor: 15,
    dropChance: 0.10,
    amount: { min: 50, max: 150 },
  },
  supremeManaOrb: {
    id: 'supremeManaOrb',
    name: 'Supreme Mana Orb',
    rarity: 'rare',
    type: 'gold',
    minFloor: 35,
    dropChance: 0.05,
    amount: { min: 100, max: 500 },
  },

  // ─── Equipment Blueprints ───
  staffBlueprint: {
    id: 'staffBlueprint',
    name: 'Staff Blueprint',
    rarity: 'uncommon',
    type: 'blueprint',
    minFloor: 10,
    dropChance: 0.03,
  },
  wandBlueprint: {
    id: 'wandBlueprint',
    name: 'Wand Blueprint',
    rarity: 'rare',
    type: 'blueprint',
    minFloor: 20,
    dropChance: 0.02,
  },
  robeBlueprint: {
    id: 'robeBlueprint',
    name: 'Mage Robe Blueprint',
    rarity: 'rare',
    type: 'blueprint',
    minFloor: 25,
    dropChance: 0.02,
  },
  artifactBlueprint: {
    id: 'artifactBlueprint',
    name: 'Artifact Blueprint',
    rarity: 'legendary',
    type: 'blueprint',
    minFloor: 60,
    dropChance: 0.01,
    guardianOnly: true,
  },
};

// Rarity colors for UI
export const LOOT_RARITY_COLORS: Record<string, { color: string; glow: string }> = {
  common: { color: '#9CA3AF', glow: '#9CA3AF40' },
  uncommon: { color: '#22C55E', glow: '#22C55E40' },
  rare: { color: '#3B82F6', glow: '#3B82F640' },
  epic: { color: '#A855F7', glow: '#A855F740' },
  legendary: { color: '#F59E0B', glow: '#F59E0B60' },
};

// Get loot drops available at a given floor
export function getAvailableDrops(floor: number, isGuardian: boolean): LootDrop[] {
  return Object.values(LOOT_DROPS).filter(drop => {
    if (drop.minFloor > floor) return false;
    if (drop.guardianOnly && !isGuardian) return false;
    return true;
  });
}

// Roll for loot drops
export function rollLootDrops(
  floor: number,
  isGuardian: boolean,
  luckBonus: number = 0
): Array<{ drop: LootDrop; amount: number }> {
  const available = getAvailableDrops(floor, isGuardian);
  const drops: Array<{ drop: LootDrop; amount: number }> = [];

  for (const drop of available) {
    // Calculate adjusted drop chance
    let chance = drop.dropChance;
    chance *= (1 + luckBonus); // Apply luck bonus
    
    // Guardian floors have 2x drop rate
    if (isGuardian) chance *= 2;
    
    // Cap at 50% for any single drop
    chance = Math.min(0.5, chance);

    if (Math.random() < chance) {
      let amount = 1;
      
      // For gold/essence types, roll amount
      if (drop.amount) {
        amount = Math.floor(
          Math.random() * (drop.amount.max - drop.amount.min + 1) + drop.amount.min
        );
      }
      
      drops.push({ drop, amount });
    }
  }

  return drops;
}