<?php

namespace App\Console\Commands;

use App\Services\DailyReportService;
use Carbon\Carbon;
use Illuminate\Console\Command;

class DailyStatsCommand extends Command
{
    protected $signature = 'coruna:daily-stats
        {--days=30 : Inclusive local days ending today (ignored when --all or --from is set)}
        {--from= : Start date Y-m-d}
        {--to= : End date Y-m-d (default today)}
        {--all : From the earliest visit/device through --to}
        {--force : Recompute every day in range (implied by --all)}';

    protected $description = 'Rebuild daily_stats and analytics_daily_dims rollups (UV / devices / version dims)';

    public function handle(DailyReportService $reports): int
    {
        $to = $this->parseDay((string) $this->option('to')) ?? Carbon::now()->endOfDay();
        $from = $this->resolveFrom($reports, $to);
        if ($from->gt($to)) {
            [$from, $to] = [$to->copy()->startOfDay(), $from->copy()->endOfDay()];
        }

        $force = (bool) $this->option('force') || (bool) $this->option('all');
        $result = $reports->rebuildAll($from, $to, $force);
        $this->info(sprintf(
            'daily-stats rebuilt=%d agents=%d from=%s to=%s',
            $result['days'],
            $result['agents'],
            $from->toDateString(),
            $to->toDateString(),
        ));

        return self::SUCCESS;
    }

    private function resolveFrom(DailyReportService $reports, Carbon $to): Carbon
    {
        if ((bool) $this->option('all')) {
            return $reports->earliestDataDate() ?? $to->copy()->startOfDay();
        }

        $from = $this->parseDay((string) $this->option('from'));
        if ($from !== null) {
            return $from;
        }

        $days = max(1, (int) $this->option('days'));

        return $to->copy()->subDays($days - 1)->startOfDay();
    }

    private function parseDay(string $raw): ?Carbon
    {
        $raw = trim($raw);
        if ($raw === '') {
            return null;
        }
        try {
            return Carbon::parse($raw)->startOfDay();
        } catch (\Throwable) {
            $this->warn('ignored invalid date: '.$raw);

            return null;
        }
    }
}