<?php

namespace App\Services\Agent;

use App\Models\Agent\Agent;
use App\Models\Agent\AgentProfitCommissionAssignment;
use App\Models\Agent\AgentProfitCommissionProfile;
use Carbon\Carbon;

/** 记录代理在每个时刻使用的分成比例快照，实时分成按注单结算时间取比例。 */
class AgentProfitCommissionAssignmentService
{
    public function at(Agent $agent, string $time): ?AgentProfitCommissionAssignment
    {
        return AgentProfitCommissionAssignment::query()
            ->where('agent_id', $agent->id)
            ->where('effective_from', '<=', Carbon::parse($time)->format('Y-m-d H:i:s'))
            ->orderByDesc('effective_from')
            ->orderByDesc('id')
            ->first();
    }

    public function assign(Agent $agent, AgentProfitCommissionProfile $profile, ?int $createdBy = null): AgentProfitCommissionAssignment
    {
        $this->assignMany([(int) $agent->id], $profile, $createdBy);
        return AgentProfitCommissionAssignment::query()->where('agent_id', $agent->id)
            ->orderByDesc('effective_from')->orderByDesc('id')->firstOrFail();
    }

    public function assignMany(array $agentIds, AgentProfitCommissionProfile $profile, ?int $createdBy = null): void
    {
        $agentIds = array_values(array_unique(array_filter(array_map('intval', $agentIds))));
        $now = now()->format('Y-m-d H:i:s');
        $values = array_merge($profile->rateSnapshot(), [
            'profit_commission_profile_id' => (int) $profile->id,
            'profile_name' => (string) $profile->name,
            'margin_amount' => (string) $profile->margin_amount,
            'created_by' => $createdBy,
        ]);
        foreach ($agentIds as $agentId) {
            AgentProfitCommissionAssignment::query()->updateOrCreate(
                ['agent_id' => $agentId, 'effective_from' => $now],
                $values
            );
        }
    }
}