#ifndef COMMON_H
#define COMMON_H

#include "settings.h"

// Tile types
typedef enum { TILE_WALL, TILE_FLOOR, TILE_STAIRS } TileType;

// Status effect types
typedef enum { EFFECT_NONE, EFFECT_POISON, EFFECT_STUN, EFFECT_BLEED, EFFECT_WEAKEN, EFFECT_BURN } StatusEffectType;

// Damage classes
typedef enum { DMG_SLASH, DMG_IMPACT, DMG_PIERCE, DMG_FIRE, DMG_POISON } DamageClass;

// Status effect instance
typedef struct {
  StatusEffectType type;
  int duration;   // turns remaining
  int intensity;  // damage per tick or stat reduction amount
} StatusEffect;

// Room
typedef struct {
  int x, y, w, h;
} Room;

// Map
typedef struct {
  TileType tiles[MAP_HEIGHT][MAP_WIDTH];
  Room rooms[MAX_ROOMS];
  int room_count;
} Map;

// Dungeon
typedef struct {
  int current_floor;
  Room rooms[MAX_ROOMS];
  int room_count;
} Dungeon;

// Item types
typedef enum { ITEM_POTION, ITEM_WEAPON, ITEM_ARMOR } ItemType;

// Item
typedef struct {
  int x, y;
  ItemType type;
  int power;
  int floor;
  int picked_up;
  DamageClass dmg_class;
  int crit_chance;
  int crit_multiplier;
  int status_chance;
} Item;

// Player
typedef struct {
  int x, y;
  int hp, max_hp;
  int attack;
  int defense;
  int floor;
  int step_count;
  int speed;     // actions per 100 ticks (100 = 1 action per turn)
  int cooldown;  // countdown to next action (0 = can act)
  int dodge;     // dodge chance percentage
  int block;     // flat damage reduction on successful block roll
  Item equipped_weapon;
  int has_weapon;
  Item equipped_armor;
  int has_armor;
  Item inventory[MAX_INVENTORY];
  int inventory_count;
  // status effects
  StatusEffect effects[MAX_EFFECTS];
  int effect_count;
} Player;

// Enemy types
typedef enum { ENEMY_GOBLIN, ENEMY_SKELETON, ENEMY_ORC } EnemyType;

// Enemy
typedef struct {
  int x, y;
  int hp;
  int max_hp;
  int attack;
  int alive;
  EnemyType type;
  int speed;     // actions per 100 ticks
  int cooldown;  // countdown to next action
  int dodge;     // dodge chance percentage
  int block;     // flat damage reduction
  int resistance[NUM_DMG_CLASSES];
  DamageClass dmg_class;
  int status_chance;
  int crit_chance;  // crit chance percentage (0-100)
  int crit_mult;    // crit damage multiplier percentage (e.g. 150 = 1.5x)
  // status effects
  StatusEffect effects[MAX_EFFECTS];
  int effect_count;
} Enemy;

// Floating damage text
typedef struct {
  int x, y;
  int value;
  int lifetime;  // frames remaining
  int is_critical;
  char label[8];                 // non-empty -> show label instead of numeric value
  StatusEffectType effect_type;  // used to pick color for proc labels
} FloatingText;

// GameState - encapsulates all game state for testability and save/load
typedef struct {
  Player player;
  Map map;
  Dungeon dungeon;
  Enemy enemies[MAX_ENEMIES];
  int enemy_count;
  Item items[MAX_ITEMS];
  int item_count;
  int game_over;
  int game_won;
  const char *last_message;
  int message_timer;
  int turn_count;
  int awaiting_descend;  // 0 = normal, 1 = waiting for Y/N
  int show_inventory;    // 0 = hidden, 1 = show overlay
  int inv_selected;      // currently selected inventory index
  // action log
  char action_log[5][128];
  int log_count;
  int log_head;
  // visual effects
  FloatingText floating_texts[8];
  int floating_count;
  int screen_shake;  // frames of screen shake remaining
  int shake_x;
  int shake_y;
} GameState;

#endif  // COMMON_H