<?php
namespace Game\Core;

use Game\Entities\Player;
use Game\Entities\Partner;
use Game\Modules\InventoryPanel;
use Game\Modules\Menu;
use Game\Modules\Battle;
use Game\Modules\StatsPanel;
use Game\Modules\NpcPanel;
use Game\Modules\TalentPanel;
use Game\Modules\DungeonSelectPanel;
use Game\Modules\EquipmentEnhancePanel;
use Game\Modules\SpellPanel;

class Game
{
    const MENU = 1;
    const BATTLE = 2;
    const STATS = 3;
    const INVENTORY = 4;
    const NPC = 5;
    const TALENT = 6;
    const EQUIPMENT_ENHANCE = 7;
    const DUNGEON_SELECT = 8;
    const EXIT = 0;

    public Player $player;
    public int $state = self::MENU;
    public int $dungeonId = 1;
    private string $saveFile;
    private string $savesDir;
    private ?string $userId = null;

    public function __construct(public $input, public $output, ?string $userId = null)
    {
        $this->player = new Player();
        $this->savesDir = __DIR__ . '/../../saves';

        // 确保存档目录存在
        if (!is_dir($this->savesDir)) {
            mkdir($this->savesDir, 0755, true);
        }

        // 设置用户ID和存档路径
        if ($userId) {
            $this->userId = $userId;
            $this->saveFile = $this->savesDir . '/' . $userId . '.json';
        } else {
            // 向后兼容：单机模式使用默认存档
            $this->saveFile = __DIR__ . '/../../save.json';
        }

        $this->loadState();
    }

    /**
     * 获取当前用户ID
     */
    public function getUserId(): ?string
    {
        return $this->userId;
    }

    private function loadState(): void
    {
        if (file_exists($this->saveFile)) {
            $data = json_decode(file_get_contents($this->saveFile), true);
            if (is_array($data)) {
                $p = $data['player'] ?? [];
                $this->player->hp = $p['hp'] ?? $this->player->hp;
                $this->player->maxHp = $p['maxHp'] ?? $this->player->maxHp;
                // 新属性系统，向后兼容旧存档
                $this->player->patk = $p['patk'] ?? $p['atk'] ?? $this->player->patk;
                $this->player->matk = $p['matk'] ?? $this->player->matk;
                $this->player->pdef = $p['pdef'] ?? $p['def'] ?? $this->player->pdef;
                $this->player->mdef = $p['mdef'] ?? $this->player->mdef;
                $this->player->crit = $p['crit'] ?? $this->player->crit;
                $this->player->critdmg = $p['critdmg'] ?? $this->player->critdmg;
                $this->player->level = $p['level'] ?? $this->player->level;
                $this->player->exp = $p['exp'] ?? $this->player->exp;
                $this->player->maxExp = $p['maxExp'] ?? $this->player->maxExp;
                $this->player->inventory = $p['inventory'] ?? $this->player->inventory;
                $this->player->equip = $p['equip'] ?? $this->player->equip;
                $this->player->spiritStones = $p['spiritStones'] ?? $this->player->spiritStones;
                $this->player->npcFlags = $p['npcFlags'] ?? $this->player->npcFlags;

                // 加载天赋数据
                $this->player->talentPoints = $p['talentPoints'] ?? $this->player->talentPoints;
                $this->player->talents = $p['talents'] ?? $this->player->talents;

                // 加载同伴数据
                if (isset($p['partners']) && is_array($p['partners'])) {
                    foreach ($p['partners'] as $partnerData) {
                        $partner = new Partner($partnerData);
                        $this->player->partners[$partner->id] = $partner;
                    }
                }

                // 加载技能槽位数据 (新法术系统)
                $this->player->mana = $p['mana'] ?? $this->player->mana;
                $this->player->maxMana = $p['maxMana'] ?? $this->player->maxMana;
                $this->player->skillSlots = $p['skillSlots'] ?? $this->player->skillSlots;

                $this->dungeonId = $data['dungeonId'] ?? $this->dungeonId;
                $this->state = self::MENU;
            }
        }
    }

    public function saveState(): void
    {
        // 序列化同伴数据
        $partnersData = [];
        foreach ($this->player->partners as $partner) {
            $partnersData[] = [
                'id' => $partner->id,
                'name' => $partner->name,
                'level' => $partner->level,
                'exp' => $partner->exp,
                'maxExp' => $partner->maxExp,
                'equip' => $partner->equip,
                'talents' => $partner->talents,
                'talentWeights' => $partner->talentWeights,
                'mana' => $partner->mana,
                'maxMana' => $partner->maxMana,
                'skillSlots' => $partner->skillSlots,

                'hp' => $partner->hp,
                'maxHp' => $partner->maxHp,
                'patk' => $partner->patk,
                'matk' => $partner->matk,
                'pdef' => $partner->pdef,
                'mdef' => $partner->mdef,
                'crit' => $partner->crit,
                'critdmg' => $partner->critdmg,

            ];
        }

        $data = [
            'player' => [
                'hp' => $this->player->hp,
                'maxHp' => $this->player->maxHp,
                'patk' => $this->player->patk,
                'matk' => $this->player->matk,
                'pdef' => $this->player->pdef,
                'mdef' => $this->player->mdef,
                'crit' => $this->player->crit,
                'critdmg' => $this->player->critdmg,
                'level' => $this->player->level,
                'exp' => $this->player->exp,
                'maxExp' => $this->player->maxExp,
                'inventory' => $this->player->inventory,
                'equip' => $this->player->equip,
                'spiritStones' => $this->player->spiritStones,
                'npcFlags' => $this->player->npcFlags,
                'talentPoints' => $this->player->talentPoints,
                'talents' => $this->player->talents,
                'mana' => $this->player->mana,
                'maxMana' => $this->player->maxMana,
                'skillSlots' => $this->player->skillSlots,
                'partners' => $partnersData,
            ],
            'dungeonId' => $this->dungeonId,
            'state' => $this->state,
        ];
        file_put_contents($this->saveFile, json_encode($data, JSON_UNESCAPED_UNICODE));
    }

    public function run()
    {
        while (true) {
            switch ($this->state) {
                case self::MENU:
                    (new Menu($this))->show();
                    break;
                case self::DUNGEON_SELECT:
                    (new DungeonSelectPanel($this))->show();
                    break;
                case self::BATTLE:
                    (new Battle($this))->start();
                    break;
                case self::STATS:
                    (new StatsPanel($this))->show();
                    break;
                case self::INVENTORY:
                    (new InventoryPanel($this))->show();
                    break;
                case self::NPC:
                    (new NpcPanel($this))->show();
                    break;
                case self::TALENT:
                    (new TalentPanel($this))->show();
                    break;
                case self::EQUIPMENT_ENHANCE:
                    (new EquipmentEnhancePanel($this))->show();
                    break;
                case self::EXIT:
                    $this->output->writeln("再见！");
                    $this->saveState();
                    return;
            }
        }
    }
}