<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;
use System\Classes\FileLogReader;
use System\Classes\Log;

class FileLogReaderTest extends TestCase
{
    private string $dir;
    private string $today;

    protected function setUp(): void
    {
        $this->dir   = sys_get_temp_dir() . '/bicycle_reader_' . uniqid('', true);
        $this->today = date('Y-m-d');
        mkdir($this->dir);
        Log::$directory = $this->dir;

        file_put_contents($this->dir . '/action-' . $this->today . '.log',
            "[{$this->today} 10:00:00] INFO: GET /feedback Feedback::index\n" .
            "[{$this->today} 10:01:00] DEBUG: какой-то debug\n"
        );
        file_put_contents($this->dir . '/error-' . $this->today . '.log',
            "[{$this->today} 10:02:00] ERROR: что-то сломалось\n"
        );
    }

    protected function tearDown(): void
    {
        foreach (glob($this->dir . '/*') as $file) {
            unlink($file);
        }
        rmdir($this->dir);
        Log::$directory = null;
    }

    public function testParsesEntries(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'action', 'date' => $this->today]);

        $this->assertCount(2, $entries);
        $first = $entries[0];
        $this->assertArrayHasKey('datetime', $first);
        $this->assertArrayHasKey('level', $first);
        $this->assertArrayHasKey('message', $first);
        $this->assertSame('action', $first['channel']);
    }

    public function testNewestFirst(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'action', 'date' => $this->today]);
        // 10:01 (debug) должно быть выше 10:00 (info)
        $this->assertSame('debug', $entries[0]['level']);
        $this->assertSame('info', $entries[1]['level']);
    }

    public function testFilterByLevel(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'action', 'date' => $this->today, 'level' => 'info']);
        $this->assertCount(1, $entries);
        $this->assertSame('info', $entries[0]['level']);
    }

    public function testFilterByText(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'action', 'date' => $this->today, 'q' => 'feedback']);
        $this->assertCount(1, $entries);
        $this->assertStringContainsString('feedback', $entries[0]['message']);
    }

    public function testErrorChannel(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'error', 'date' => $this->today]);
        $this->assertCount(1, $entries);
        $this->assertSame('error', $entries[0]['level']);
    }

    public function testAllChannelsCombined(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'all', 'date' => $this->today]);
        $this->assertCount(3, $entries);
        // Новейшая запись — ошибка в 10:02.
        $this->assertSame('error', $entries[0]['level']);
    }

    public function testMissingFileReturnsEmpty(): void
    {
        $entries = (new FileLogReader())->read(['channel' => 'action', 'date' => '2000-01-01']);
        $this->assertSame([], $entries);
    }

    public function testDatesListsAvailable(): void
    {
        $dates = (new FileLogReader())->dates();
        $this->assertContains($this->today, $dates);
    }
}