<?php

namespace App\Services\Streams;

use App\Enums\StreamTypeEnum;
use App\Models\Scenario;

readonly class StatsService
{
    public function getSummaryStats(Scenario $scenario): array
    {
        $streams = $scenario->streams()
            ->where('is_active', true)
            ->get();

        $totalMonthlyIncome = $streams
            ->where('type', StreamTypeEnum::INCOME)
            ->sum(fn($stream) => $stream->getMonthlyEquivalent());

        $totalMonthlyExpenses = $streams
            ->where('type', StreamTypeEnum::EXPENSE)
            ->sum(fn($stream) => $stream->getMonthlyEquivalent());

        return [
            'total_streams' => $streams->count(),
            'active_streams' => $streams->where('is_active', true)->count(),
            'income_streams' => $streams->where('type', StreamTypeEnum::INCOME)->count(),
            'expense_streams' => $streams->where('type', StreamTypeEnum::EXPENSE)->count(),
            'monthly_income' => $totalMonthlyIncome,
            'monthly_expenses' => $totalMonthlyExpenses,
            'monthly_net' => $totalMonthlyIncome - $totalMonthlyExpenses,
        ];
    }
}