<?php

declare(strict_types=1);

namespace app\admin\controller\game;

use Throwable;
use app\common\controller\Backend;
use app\common\library\GameRewardConfigTemplate;
use app\common\library\GameRewardTierBoardGenerator;
use app\common\library\GameRewardWeightSeeder;
use app\common\model\GameRewardConfig;
use app\common\validate\GameRewardConfig as GameRewardConfigValidate;
use support\think\Db;
use support\Response;
use Webman\Http\Request as WebmanRequest;

/**
 * 游戏奖励配置（渠道表单页，路由 /admin/game/rewardConfig）
 * 约定：game_channel_id = 0 为超管维护的「全渠道默认模板」，新建渠道时优先从此行复制到新渠道
 */
class RewardConfig extends Backend
{
    /** 默认模板渠道主键（非真实渠道，仅存库一行） */
    private const DEFAULT_TEMPLATE_CHANNEL_ID = 0;

    public function index(WebmanRequest $request): Response
    {
        $response = $this->initializeBackend($request);
        if ($response !== null) {
            return $response;
        }

        [$channelId, $err] = $this->resolveTargetChannelId($request, false);
        if ($err !== null) {
            return $err;
        }

        $row = GameRewardConfig::where('game_channel_id', $channelId)->find();
        if ($row) {
            return $this->success('', [
                'row' => $row->toArray(),
            ]);
        }

        $defaults = GameRewardConfigTemplate::getDefaultJsonColumns();

        return $this->success('', [
            'row' => [
                'id'               => null,
                'game_channel_id'  => $channelId,
                'tier_reward_form' => $defaults['tier_reward_form'],
                'bigwin_form'      => $defaults['bigwin_form'],
            ],
        ]);
    }

    public function save(WebmanRequest $request): Response
    {
        $response = $this->initializeBackend($request);
        if ($response !== null) {
            return $response;
        }

        if ($request->method() !== 'POST') {
            return $this->error(__('Parameter error'));
        }

        $data = $request->post();
        if (!$data) {
            return $this->error(__('Parameter %s can not be empty', ['']));
        }

        [$channelId, $err] = $this->resolveTargetChannelId($request, true);
        if ($err !== null) {
            return $err;
        }

        if (!$this->channelExists($channelId)) {
            return $this->error(__('Record not found'));
        }

        $tier = $data['tier_reward_form'] ?? null;
        $big = $data['bigwin_form'] ?? null;
        if (!is_string($tier) || !is_string($big)) {
            return $this->error(__('Parameter error'));
        }

        try {
            $validate = new GameRewardConfigValidate();
            $validate->scene('channel_form')->check([
                'tier_reward_form' => $tier,
                'bigwin_form'      => $big,
            ]);
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        $existing = GameRewardConfig::where('game_channel_id', $channelId)->find();

        try {
            if ($existing) {
                $existing->save([
                    'tier_reward_form' => $tier,
                    'bigwin_form'      => $big,
                ]);
            } else {
                $m = new GameRewardConfig();
                $m->save([
                    'game_channel_id'  => $channelId,
                    'tier_reward_form' => $tier,
                    'bigwin_form'      => $big,
                ]);
            }
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        return $this->success(__('Update successful'));
    }

    /**
     * 按条数与结算标准生成 26 格档位奖励并保存（保留当前 bigwin_form）
     */
    public function generateTierBoard(WebmanRequest $request): Response
    {
        $response = $this->initializeBackend($request);
        if ($response !== null) {
            return $response;
        }

        if ($request->method() !== 'POST') {
            return $this->error(__('Parameter error'));
        }

        $data = $request->post();
        if (!$data || !is_array($data)) {
            return $this->error(__('Parameter %s can not be empty', ['']));
        }

        [$channelId, $err] = $this->resolveTargetChannelId($request, true);
        if ($err !== null) {
            return $err;
        }

        if (!$this->channelExists($channelId)) {
            return $this->error(__('Record not found'));
        }

        try {
            $out = GameRewardTierBoardGenerator::generate($data);
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        $tier = $out['tier_reward_form'];
        $existing = GameRewardConfig::where('game_channel_id', $channelId)->find();
        if ($existing && is_string($existing->bigwin_form) && trim($existing->bigwin_form) !== '') {
            $big = $existing->bigwin_form;
        } else {
            $defaults = GameRewardConfigTemplate::getDefaultJsonColumns();
            $big = $defaults['bigwin_form'];
        }

        try {
            $validate = new GameRewardConfigValidate();
            $validate->scene('channel_form')->check([
                'tier_reward_form' => $tier,
                'bigwin_form'      => $big,
            ]);
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        try {
            if ($existing) {
                $existing->save([
                    'tier_reward_form' => $tier,
                    'bigwin_form'      => $big,
                ]);
            } else {
                $m = new GameRewardConfig();
                $m->save([
                    'game_channel_id'  => $channelId,
                    'tier_reward_form' => $tier,
                    'bigwin_form'      => $big,
                ]);
            }
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        return $this->success(__('Update successful'));
    }

    /**
     * 根据当前档位奖励 JSON 生成 game_reward_weight（先清空该渠道再写入 52 条）
     */
    public function generateRewardWeight(WebmanRequest $request): Response
    {
        $response = $this->initializeBackend($request);
        if ($response !== null) {
            return $response;
        }

        if ($request->method() !== 'POST') {
            return $this->error(__('Parameter error'));
        }

        [$channelId, $err] = $this->resolveTargetChannelId($request, true);
        if ($err !== null) {
            return $err;
        }

        if (!$this->channelExists($channelId)) {
            return $this->error(__('Record not found'));
        }

        $row = GameRewardConfig::where('game_channel_id', $channelId)->find();
        if (!$row || !is_string($row->tier_reward_form) || trim($row->tier_reward_form) === '') {
            return $this->error('请先保存档位奖励配置');
        }

        try {
            GameRewardWeightSeeder::syncFromTierRewardForm($channelId, $row->tier_reward_form);
        } catch (Throwable $e) {
            return $this->error($e->getMessage());
        }

        return $this->success(__('Update successful'));
    }

    /**
     * @return array{0: int, 1: Response|null}
     */
    private function resolveTargetChannelId(WebmanRequest $request, bool $isPost): array
    {
        if ($this->auth->isSuperAdmin()) {
            $raw = $isPost ? ($request->post('game_channel_id') ?? $request->get('game_channel_id')) : $request->get('game_channel_id');
            if ($raw === null || $raw === '') {
                return [self::DEFAULT_TEMPLATE_CHANNEL_ID, null];
            }
            if (!is_numeric($raw)) {
                return [self::DEFAULT_TEMPLATE_CHANNEL_ID, $this->error(__('Parameter error'))];
            }
            $cid = intval(strval($raw));
            if ($cid < 0) {
                return [self::DEFAULT_TEMPLATE_CHANNEL_ID, $this->error(__('Parameter error'))];
            }
            if ($cid === self::DEFAULT_TEMPLATE_CHANNEL_ID) {
                return [self::DEFAULT_TEMPLATE_CHANNEL_ID, null];
            }

            return [$cid, null];
        }

        $ids = Db::name('game_channel')->where('admin_id', $this->auth->id)->order('id', 'asc')->column('id');
        if ($ids === []) {
            return [self::DEFAULT_TEMPLATE_CHANNEL_ID, $this->error(__('Record not found'))];
        }

        return [intval(strval($ids[0])), null];
    }

    private function channelExists(int $channelId): bool
    {
        if ($channelId === self::DEFAULT_TEMPLATE_CHANNEL_ID) {
            return $this->auth->isSuperAdmin();
        }

        if ($this->auth->isSuperAdmin()) {
            return Db::name('game_channel')->where('id', $channelId)->count() > 0;
        }

        return Db::name('game_channel')->where('id', $channelId)->where('admin_id', $this->auth->id)->count() > 0;
    }
}