<?php

declare(strict_types=1);

namespace App\Console\Commands;

use App\Models\AdsenseConnection;
use App\Services\Adsense\AdsenseSyncResult;
use App\Services\Adsense\AdsenseSyncService;
use Illuminate\Console\Command;
use Illuminate\Support\Carbon;

final class AdsenseSyncCommand extends Command
{
    protected $signature = 'adsense:sync
        {--days= : Number of trailing days to synchronize, including today}
        {--from= : Inclusive start date (YYYY-MM-DD)}
        {--to= : Inclusive end date (YYYY-MM-DD)}
        {--entities-only : Synchronize ad units and custom channels without reports}
        {--force : Run even when ADSENSE_SYNC_ENABLED is false}';

    protected $description = 'Synchronize Google AdSense entities and daily reporting into Skinbase';

    public function handle(AdsenseSyncService $sync): int
    {
        if (! (bool) config('adsense.sync_enabled', true) && ! $this->option('force')) {
            $this->warn('AdSense synchronization is disabled. Use --force to run anyway.');

            return self::SUCCESS;
        }

        try {
            [$from, $to] = $this->resolveRange();
        } catch (\InvalidArgumentException $exception) {
            $this->error($exception->getMessage());

            return self::INVALID;
        }

        $connection = AdsenseConnection::current();
        if ($connection === null || ! $connection->hasRefreshToken()) {
            $this->error('Google AdSense is not connected.');

            return self::FAILURE;
        }

        if ($connection->status === AdsenseConnection::STATUS_RECONNECT_REQUIRED) {
            $this->error('AdSense authorization expired or was revoked. Reconnect Google AdSense.');

            return self::FAILURE;
        }

        if ((string) $connection->account_resource_name === '') {
            $this->error('No AdSense account is selected.');

            return self::FAILURE;
        }

        $entitiesOnly = (bool) $this->option('entities-only');
        $result = $sync->sync($connection, $from, $to, $entitiesOnly);

        $this->renderResult($result, $entitiesOnly);

        if ($result->reconnectRequired) {
            $this->error('AdSense authorization expired or was revoked. Reconnect Google AdSense.');

            return self::FAILURE;
        }

        if ($result->failedReports !== []) {
            $this->warn('Synchronization completed with partial report failures: '.implode(', ', $result->failedReports));

            return self::SUCCESS;
        }

        $this->info('Synchronization completed successfully.');

        return self::SUCCESS;
    }

    /**
     * @return array{0: Carbon, 1: Carbon}
     */
    private function resolveRange(): array
    {
        $days = $this->option('days');
        $from = $this->option('from');
        $to = $this->option('to');

        if ($days !== null && ($from !== null || $to !== null)) {
            throw new \InvalidArgumentException('The --days option cannot be combined with --from or --to.');
        }

        if (($from !== null) !== ($to !== null)) {
            throw new \InvalidArgumentException('Both --from and --to are required for a custom range.');
        }

        if (is_string($from) && is_string($to)) {
            $start = Carbon::parse($from)->startOfDay();
            $end = Carbon::parse($to)->startOfDay();
            if ($end->lt($start)) {
                throw new \InvalidArgumentException('The --to date must be on or after --from.');
            }

            return [$start, $end];
        }

        $trailingDays = $days !== null ? max(1, (int) $days) : 3;
        $end = now()->startOfDay();
        $start = $end->copy()->subDays($trailingDays - 1);

        return [$start, $end];
    }

    private function renderResult(AdsenseSyncResult $result, bool $entitiesOnly): void
    {
        $this->line('AdSense account: '.($result->accountDisplayName !== '' ? $result->accountDisplayName : 'unknown'));
        $this->line('Range: '.$result->from.' -> '.$result->to);
        $this->newLine();
        $this->line('Entities:');
        $this->line('  Ad units: '.$result->adUnits);
        $this->line('  Custom channels: '.$result->customChannels);

        if ($entitiesOnly) {
            return;
        }

        $this->newLine();
        $this->line('Reports:');
        $this->line('  Total: '.$result->totalRows);
        $this->line('  Ad units: '.$result->adUnitRows);
        $this->line('  Custom channels: '.$result->customChannelRows);
        $this->line('  Platform: '.$result->platformRows);
        $this->line('  Countries: '.$result->countryRows);
        $this->newLine();
    }
}