<?php

namespace App\Services\Coach;

use App\Models\MemberUser;
use App\Models\WalletTransRecord;
use Illuminate\Support\Facades\Log;

class WalletService
{
    /**
     * 获取技师钱包信息
     *
     * @param  int  $userId  技师用户ID
     */
    public function getWallet(int $userId): array
    {
        try {
            // 加载用户和技师信息
            $user = MemberUser::with(['coach', 'coach.wallet'])->findOrFail($userId);
            abort_if(! $user->coach, 404, '技师信息不存在');

            // 获取技师钱包
            $wallet = $user->coach->wallet;

            // 获取钱包流水统计
            $statistics = $this->getWalletStatistics($wallet->id);

            return [
                'available_balance' => number_format($wallet->available_balance, 2, '.', ''), // 可用余额
                'frozen_amount' => number_format($wallet->frozen_amount, 2, '.', ''), // 冻结金额
                'total_income' => number_format($statistics['total_income'], 2, '.', ''), // 累计收入
                'total_withdraw' => number_format($statistics['total_withdraw'], 2, '.', ''), // 累计支出
                'today_income' => number_format($statistics['today_income'], 2, '.', ''), // 今日收入
                'month_income' => number_format($statistics['month_income'], 2, '.', ''), // 本月收入
                'last_month_income' => number_format($statistics['last_month_income'], 2, '.', ''), // 上月收入
            ];

        } catch (\Exception $e) {
            Log::error('获取技师钱包信息失败', [
                'user_id' => $userId,
                'error' => $e->getMessage(),
                'file' => $e->getFile(),
                'line' => $e->getLine(),
            ]);
            throw $e;
        }
    }

    /**
     * 获取钱包流水记录
     *
     * @param  int  $userId  技师用户ID
     * @param  array  $params  查询参数
     */
    public function getWalletRecords(int $userId, array $params): array
    {
        try {
            // 加载用户和钱包信息
            $user = MemberUser::with(['wallet'])->findOrFail($userId);
            abort_if(! $user->wallet, 404, '钱包信息不存在');

            // 构建查询
            $query = WalletTransRecord::where('wallet_id', $user->wallet->id)
                ->when(isset($params['type']), function ($query) use ($params) {
                    return $query->where('type', $params['type']);
                })
                ->when(isset($params['start_date']), function ($query) use ($params) {
                    return $query->where('created_at', '>=', $params['start_date']);
                })
                ->when(isset($params['end_date']), function ($query) use ($params) {
                    return $query->where('created_at', '<=', $params['end_date']);
                })
                ->orderBy('created_at', 'desc');

            // 分页获取数据
            $records = $query->paginate(
                $params['per_page'] ?? 10,
                ['*'],
                'page',
                $params['page'] ?? 1
            );

            return [
                'items' => $records->items(),
                'total' => $records->total(),
            ];

        } catch (\Exception $e) {
            Log::error('获取钱包流水记录失败', [
                'user_id' => $userId,
                'params' => $params,
                'error' => $e->getMessage(),
                'file' => $e->getFile(),
                'line' => $e->getLine(),
            ]);
            throw $e;
        }
    }

    /**
     * 获取钱包流水统计
     *
     * @param  int  $walletId  钱包ID
     */
    private function getWalletStatistics(int $walletId): array
    {
        try {
            // 计算总收入和总支出
            $totals = WalletTransRecord::where('wallet_id', $walletId)
                ->selectRaw('
                    SUM(CASE WHEN amount > 0 THEN amount ELSE 0 END) as total_income,
                    ABS(SUM(CASE WHEN amount < 0 THEN amount ELSE 0 END)) as total_withdraw
                ')
                ->first();

            // 计算今日收入
            $todayIncome = WalletTransRecord::where('wallet_id', $walletId)
                ->where('amount', '>', 0)
                ->whereDate('created_at', today())
                ->sum('amount');

            // 计算本月收入
            $monthIncome = WalletTransRecord::where('wallet_id', $walletId)
                ->where('amount', '>', 0)
                ->whereYear('created_at', now()->year)
                ->whereMonth('created_at', now()->month)
                ->sum('amount');

            // 计算上月收入
            $lastMonthIncome = WalletTransRecord::where('wallet_id', $walletId)
                ->where('amount', '>', 0)
                ->whereYear('created_at', now()->subMonth()->year)
                ->whereMonth('created_at', now()->subMonth()->month)
                ->sum('amount');

            return [
                'total_income' => $totals->total_income ?? 0,
                'total_withdraw' => $totals->total_withdraw ?? 0,
                'today_income' => $todayIncome,
                'month_income' => $monthIncome,
                'last_month_income' => $lastMonthIncome,
            ];

        } catch (\Exception $e) {
            Log::error('获取钱包统计信息失败', [
                'wallet_id' => $walletId,
                'error' => $e->getMessage(),
            ]);

            return [
                'total_income' => 0,
                'total_withdraw' => 0,
                'today_income' => 0,
                'month_income' => 0,
                'last_month_income' => 0,
            ];
        }
    }
}