<?php

namespace App\Module\Promotion\Services;

use App\Module\Promotion\Logics\ReferralLogic;
use App\Module\Promotion\Logics\TalentLogic;
use App\Module\Promotion\Models\PromotionUserTalent;
use Illuminate\Support\Facades\Log;

/**
 * 达人等级服务类
 *
 * 对外提供达人等级相关的服务，包括获取达人等级、获取达人权益、
 * 获取达人等级配置等功能。该类对外提供服务，内部调用逻辑层实现。
 */
class TalentService
{

    /**
     * 获取用户的达人等级信息
     *
     * @param int $userId 用户ID
     * @return array|null
     */
    public static function getUserTalentInfo(int $userId): ?array
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);

            $talent = $talentLogic->getUserTalent($userId);

            if (!$talent) {
                return null;
            }

            $config = $talentLogic->getTalentConfig($talent->talent_level);

            return [
                'user_id' => $talent->user_id,
                'talent_level' => $talent->talent_level,
                'talent_name' => $config ? $config->name : '',
                'direct_count' => $talent->direct_count,
                'promotion_count' => $talent->promotion_count,
                'icon' => $config ? $config->icon : '',
                'icon_url' => $config ? $config->icon_url : '',
                'benefits' => $config ? (is_array($config->benefits) ? $config->benefits : json_decode($config->benefits, true)) : [],
                'profit_rate' => $config ? $config->profit_rate : 0.0,
                'created_at' => $talent->created_at,
                'updated_at' => $talent->updated_at
            ];
        } catch (\Exception $e) {
            Log::error("获取用户达人等级信息失败: " . $e->getMessage());
            return null;
        }
    }

    /**
     * 获取所有达人等级配置
     *
     * @return array
     */
    public static function getAllTalentConfigs(): array
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);
            $configs = $talentLogic->getAllTalentConfigs();

            $result = [];
            foreach ($configs as $config) {
                $result[] = [
                    'level' => $config->level,
                    'name' => $config->name,
                    'direct_count_required' => $config->direct_count_required,
                    'promotion_count_required' => $config->promotion_count_required,
                    'profit_rate' => $config->profit_rate,
                    'benefits' => is_array($config->benefits) ? $config->benefits : json_decode($config->benefits, true),
                    'icon' => $config->icon,
                    'icon_url' => $config->icon_url
                ];
            }

            return $result;
        } catch (\Exception $e) {
            Log::error("获取所有达人等级配置失败: " . $e->getMessage());
            return [];
        }
    }

    /**
     * 获取达人等级权益
     *
     * @param int $level 等级
     * @return array
     */
    public static function getTalentBenefits(int $level): array
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);
            return $talentLogic->getTalentBenefits($level);
        } catch (\Exception $e) {
            Log::error("获取达人等级权益失败: " . $e->getMessage());
            return [];
        }
    }

    /**
     * 检查并更新用户的达人等级
     *
     * @param int $userId 用户ID
     * @return bool
     */
    public static function checkAndUpdateUserTalentLevel(int $userId): bool
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);
            return $talentLogic->checkAndUpdateTalentLevel($userId);
        } catch (\Exception $e) {
            Log::error("检查并更新用户达人等级失败: " . $e->getMessage());
            return false;
        }
    }

    /**
     * 获取达人等级排行榜
     *
     * @param int $limit 限制数量
     * @return array
     */
    public static function getTalentRanking(int $limit = 10): array
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);

            $talents = PromotionUserTalent::where('talent_level', '>', 0)
                ->orderBy('talent_level', 'desc')
                ->orderBy('promotion_count', 'desc')
                ->orderBy('direct_count', 'desc')
                ->limit($limit)
                ->with('user')
                ->get();

            $result = [];
            foreach ($talents as $talent) {
                if ($talent->user) {
                    $config = $talentLogic->getTalentConfig($talent->talent_level);

                    $result[] = [
                        'user_id' => $talent->user_id,
                        'username' => $talent->user->username ?? '',
                        'nickname' => $talent->user->nickname ?? '',
                        'avatar' => $talent->user->avatar ?? '',
                        'talent_level' => $talent->talent_level,
                        'talent_name' => $config ? $config->name : '',
                        'direct_count' => $talent->direct_count,
                        'promotion_count' => $talent->promotion_count,
                        'icon' => $config ? $config->icon : '',
                        'icon_url' => $config ? $config->icon_url : ''
                    ];
                }
            }

            return $result;
        } catch (\Exception $e) {
            Log::error("获取达人等级排行榜失败: " . $e->getMessage());
            return [];
        }
    }

    /**
     * 获取用户的达人等级进度
     *
     * @param int $userId 用户ID
     * @return array
     */
    public static function getUserTalentProgress(int $userId): array
    {
        try {
            $referralLogic = new ReferralLogic();
            $talentLogic = new TalentLogic($referralLogic);

            $talent = $talentLogic->getUserTalent($userId);

            if (!$talent) {
                return [
                    'current_level' => 0,
                    'next_level' => 1,
                    'direct_count' => 0,
                    'direct_count_required' => 5,
                    'direct_count_progress' => 0,
                    'promotion_count' => 0,
                    'promotion_count_required' => 10,
                    'promotion_count_progress' => 0
                ];
            }

            $configs = $talentLogic->getAllTalentConfigs();

            // 找到下一个等级
            $nextLevel = null;
            $nextLevelConfig = null;

            foreach ($configs as $config) {
                if ($config->level > $talent->talent_level) {
                    $nextLevel = $config->level;
                    $nextLevelConfig = $config;
                    break;
                }
            }

            if (!$nextLevel) {
                // 已经是最高等级
                $currentConfig = $talentLogic->getTalentConfig($talent->talent_level);

                return [
                    'current_level' => $talent->talent_level,
                    'next_level' => null,
                    'direct_count' => $talent->direct_count,
                    'direct_count_required' => $currentConfig ? $currentConfig->direct_count_required : 0,
                    'direct_count_progress' => 100,
                    'promotion_count' => $talent->promotion_count,
                    'promotion_count_required' => $currentConfig ? $currentConfig->promotion_count_required : 0,
                    'promotion_count_progress' => 100
                ];
            }

            // 计算进度
            $directCountProgress = $nextLevelConfig->direct_count_required > 0
                ? min(100, ($talent->direct_count / $nextLevelConfig->direct_count_required) * 100)
                : 0;

            $promotionCountProgress = $nextLevelConfig->promotion_count_required > 0
                ? min(100, ($talent->promotion_count / $nextLevelConfig->promotion_count_required) * 100)
                : 0;

            return [
                'current_level' => $talent->talent_level,
                'next_level' => $nextLevel,
                'direct_count' => $talent->direct_count,
                'direct_count_required' => $nextLevelConfig->direct_count_required,
                'direct_count_progress' => $directCountProgress,
                'promotion_count' => $talent->promotion_count,
                'promotion_count_required' => $nextLevelConfig->promotion_count_required,
                'promotion_count_progress' => $promotionCountProgress
            ];
        } catch (\Exception $e) {
            Log::error("获取用户达人等级进度失败: " . $e->getMessage());
            return [
                'current_level' => 0,
                'next_level' => 1,
                'direct_count' => 0,
                'direct_count_required' => 5,
                'direct_count_progress' => 0,
                'promotion_count' => 0,
                'promotion_count_required' => 10,
                'promotion_count_progress' => 0
            ];
        }
    }
}