<?php
namespace Game\Model;

/**
 * Quest: 任务模型 - 包含配置数据和运行时进度
 */
class Quest {
    // --- 配置数据 (来自 JSON) ---
    public string $id;
    public string $name;
    public string $description;
    public string $type;
    public array $target; // e.g., ['entityId' => 'GOBLIN', 'count' => 1]
    public array $rewards;
    public bool $isRepeatable = false;

    // ⭐ 新增：运行时状态，默认为 0
    protected int $currentCount = 0;

    // ⭐ 新增：触发器和对话数据
    public ?string $triggerType; // 'NPC' or 'SYSTEM'
    public ?string $triggerValue; // NPC_ID or EVENT_NAME
    public array $dialogue; // Dialogue Tree

    public function __construct(string $id, string $name, string $description, string $type, array $target, array $rewards, ?string $triggerType = null, ?string $triggerValue = null, array $dialogue = []) {
        $this->id = $id;
        $this->name = $name;
        $this->description = $description;
        $this->type = $type;
        $this->target = $target;
        $this->rewards = $rewards;
        $this->triggerType = $triggerType;
        $this->triggerValue = $triggerValue;
        $this->dialogue = $dialogue;
    }

    // --- 进度管理方法 (用于业务逻辑) ---

    /**
     * 增加任务当前进度
     */
    public function incrementCurrentCount(int $amount = 1): void {
        // 目标数量存储在 $this->target['count'] 中
        $targetCount = $this->target['count'] ?? 1;
        $this->currentCount = min($targetCount, $this->currentCount + $amount);
    }

    /**
     * ⭐ 简便方法：增加进度（兼容旧API）
     */
    public function incrementProgress(int $amount = 1): void {
        $this->incrementCurrentCount($amount);
    }

    /**
     * 检查任务是否完成
     */
    public function isCompleted(): bool {
        $targetCount = $this->target['count'] ?? 1;
        return $this->currentCount >= $targetCount;
    }

    // --- Getter/Setter (用于 UI 和 SaveLoadService) ---

    public function getName(): string { return $this->name; }
    public function getDescription(): string { return $this->description; }
    public function getId(): string { return $this->id; }
    public function getType(): string { return $this->type; }
    public function getTarget(): array { return $this->target; }
    public function getRewards(): array { return $this->rewards; }
    
    /**
     * ⭐ 获取任务标题（兼容旧API）
     */
    public function getTitle(): string { return $this->name; }

    /**
     * 获取当前进度 (用于存档)
     */
    public function getCurrentCount(): int { return $this->currentCount; }

    /**
     * ⭐ 核心修正：设置当前进度 (用于存档加载)
     */
    public function setCurrentCount(int $count): void {
        $this->currentCount = $count;
    }

    public function toArray()
    {
        return [
            'id' => $this->id,
            'name' => $this->name,
            'description' => $this->description,
            'type' => $this->type,
            'target' => $this->target,
            'rewards' => $this->rewards,
            'isRepeatable' => $this->isRepeatable,
            'currentCount' => $this->currentCount,
            'triggerType' => $this->triggerType,
            'triggerValue' => $this->triggerValue,
            'dialogue' => $this->dialogue,
        ];
    }
}