<?php

namespace app\common\validate;

use think\Validate;

class GameRewardConfig extends Validate
{
    protected $failException = true;

    /**
     * 验证规则
     */
    protected $rule = [
        'game_channel_id'  => 'require|integer|gt:0',
        'tier_reward_form' => 'require|checkTierRewardForm',
        'bigwin_form'      => 'require|checkBigwinForm',
    ];

    /**
     * 提示消息
     */
    protected $message = [
        'game_channel_id.require' => '请选择渠道',
        'game_channel_id.integer' => '渠道参数格式错误',
        'game_channel_id.gt'      => '渠道参数格式错误',
        'tier_reward_form.require' => '档位奖励表单不能为空',
        'bigwin_form.require'      => '超级大奖表单不能为空',
    ];

    /**
     * 验证场景
     */
    protected $scene = [
        'add'  => ['game_channel_id', 'tier_reward_form', 'bigwin_form'],
        'edit' => ['game_channel_id', 'tier_reward_form', 'bigwin_form'],
    ];

    private function parseJsonArray(mixed $value, string $label): array|string
    {
        if (!is_string($value) || trim($value) === '') {
            return $label . '不能为空';
        }

        try {
            $decoded = json_decode($value, true, 512, JSON_THROW_ON_ERROR);
        } catch (\Throwable $e) {
            return $label . '必须为合法 JSON';
        }

        if (!is_array($decoded)) {
            return $label . '格式错误';
        }
        return $decoded;
    }

    protected function checkTierRewardForm($value, $rule, array $data = []): bool|string
    {
        $decoded = $this->parseJsonArray($value, '档位奖励表单');
        if (!is_array($decoded)) {
            return $decoded;
        }

        $expectedGrid = range(5, 30);
        if (count($decoded) !== 26) {
            return '档位奖励表单必须固定 26 条';
        }
        $allowTiers = ['T1', 'T2', 'T3', 'T4', 'T5'];
        foreach ($decoded as $idx => $row) {
            $rowNo = $idx + 1;
            if (!is_array($row)) {
                return '档位奖励表单第' . $rowNo . '条格式错误';
            }
            $gridNumber = $row['grid_number'] ?? null;
            $uiText = $row['ui_text'] ?? null;
            $realEv = $row['real_ev'] ?? null;
            $tier = $row['tier'] ?? null;

            if (!is_numeric($gridNumber)) {
                return '档位奖励表单第' . $rowNo . '条点数必须为数字';
            }
            $gridInt = intval(strval($gridNumber));
            if ($gridInt !== $expectedGrid[$idx]) {
                return '档位奖励表单点数必须固定为 5-30 且不可修改';
            }
            if (!is_string($uiText) || trim($uiText) === '') {
                return '档位奖励表单第' . $rowNo . '条显示文本不能为空';
            }
            if ($realEv === null || $realEv === '' || !is_numeric($realEv)) {
                return '档位奖励表单第' . $rowNo . '条实际中奖必须为数字';
            }
            if (!is_string($tier) || !in_array($tier, $allowTiers, true)) {
                return '档位奖励表单第' . $rowNo . '条档位只能是 T1-T5';
            }
        }

        return true;
    }

    protected function checkBigwinForm($value, $rule, array $data = []): bool|string
    {
        $decoded = $this->parseJsonArray($value, '超级大奖表单');
        if (!is_array($decoded)) {
            return $decoded;
        }

        $expectedGrid = [5, 10, 15, 20, 25, 30];
        if (count($decoded) !== 6) {
            return '超级大奖表单必须固定 6 条';
        }
        foreach ($decoded as $idx => $row) {
            $rowNo = $idx + 1;
            if (!is_array($row)) {
                return '超级大奖表单第' . $rowNo . '条格式错误';
            }

            $gridNumber = $row['grid_number'] ?? null;
            $uiText = $row['ui_text'] ?? null;
            $realEv = $row['real_ev'] ?? null;
            $tier = $row['tier'] ?? null;

            if (!is_numeric($gridNumber)) {
                return '超级大奖表单第' . $rowNo . '条点数必须为数字';
            }
            $gridInt = intval(strval($gridNumber));
            if ($gridInt !== $expectedGrid[$idx]) {
                return '超级大奖表单点数必须固定为 5、10、15、20、25、30 且不可修改';
            }

            if (!is_string($uiText) || trim($uiText) === '') {
                return '超级大奖表单第' . $rowNo . '条显示文本不能为空';
            }
            if ($realEv === null || $realEv === '' || !is_numeric($realEv)) {
                return '超级大奖表单第' . $rowNo . '条实际中奖必须为数字';
            }
            if (!is_string($tier) || $tier !== 'BIGWIN') {
                return '超级大奖表单第' . $rowNo . '条档位必须为 BIGWIN';
            }
        }
        return true;
    }

}