// input.js — Mouse and keyboard input handling

class InputHandler {
    constructor(canvas, game) {
        this.canvas = canvas;
        this.game = game;
        this.mouseX = 0;
        this.mouseY = 0;
        
        canvas.addEventListener('click', (e) => this.handleClick(e));
        canvas.addEventListener('mousemove', (e) => this.handleMouseMove(e));
        canvas.addEventListener('contextmenu', (e) => e.preventDefault());
        
        document.addEventListener('keydown', (e) => this.handleKey(e));
    }

    handleClick(e) {
        const rect = this.canvas.getBoundingClientRect();
        const mx = e.clientX - rect.left;
        const my = e.clientY - rect.top;
        
        // Convert screen to world coords
        const worldX = mx + this.game.camera.x - 480;
        const worldY = my + this.game.camera.y - 320;
        
        // Convert to tile coords
        const tile = this.game.map.screenToTile(worldX, worldY);
        
        // Check if clicking a monster
        for (const monster of this.game.monsters) {
            if (monster.tileX === tile.x && monster.tileY === tile.y) {
                this.game.player.attackTarget = monster;
                this.game.addEvent(`Targeting ${monster.name}`, 'combat');
                return;
            }
        }
        
        // Check if clicking an NPC
        for (const npc of this.game.npcs) {
            if (npc.tileX === tile.x && npc.tileY === tile.y) {
                this.game.interactNPC(npc);
                return;
            }
        }
        
        // Otherwise, move to clicked tile
        if (!this.game.map.isSolid(tile.x, tile.y)) {
            const playerTile = { x: Math.floor(this.game.player.x), y: Math.floor(this.game.player.y) };
            const path = this.game.findPath(playerTile, tile);
            if (path) {
                this.game.player.setPath(path);
                this.game.player.attackTarget = null;
            }
        }
    }

    handleMouseMove(e) {
        const rect = this.canvas.getBoundingClientRect();
        this.mouseX = e.clientX - rect.left;
        this.mouseY = e.clientY - rect.top;
    }

    handleKey(e) {
        // Skill bar (1-0)
        if (e.key >= '0' && e.key <= '9') {
            const slot = e.key === '0' ? 10 : parseInt(e.key);
            this.game.useSkill(slot);
        }
        
        // Other keys
        switch(e.key) {
            case 'i':
            case 'I':
                this.game.toggleInventory();
                break;
            case 'q':
            case 'Q':
                this.game.toggleQuestLog();
                break;
            case 'Escape':
                this.game.closeMenus();
                break;
        }
    }
}