<?php

declare(strict_types=1);

namespace Tests\Logging;

use Icefox\DTO\Log;
use Psr\Log\LogLevel;
use Psr\Log\NullLogger;
use Tests\Classes\PrimitiveData;
use Tests\TestCase;

describe('logger resolution', function () {

    afterEach(function () {
        config()->set('dto.log.logger', NullLogger::class);
    });

    it('uses NullLogger as fallback when logger config is null', function () {
        config()->set('dto.log.logger', null);
        $log = new Log();
        expect($log->logger)->toBeInstanceOf(NullLogger::class);
    });

    it('uses NullLogger as fallback when logger config is invalid', function () {
        config()->set('dto.log.logger', 'NonExistentLoggerClass');
        $log = new Log();
        expect($log->logger)->toBeInstanceOf(NullLogger::class);
    });

    it('instantiates logger from class name via Laravel container', function () {
        config()->set('dto.log.logger', CustomLogger::class);
        $log = new Log();
        expect($log->logger)->toBeInstanceOf(CustomLogger::class);
    });

    it('uses logger object directly when provided', function () {
        $customLogger = new CustomLogger();
        config()->set('dto.log.logger', $customLogger);
        $log = new Log();
        expect($log->logger)->toBe($customLogger);
    });

    it('invokes callable to get logger instance', function () {
        config()->set('dto.log.logger', function () {
            return new CustomLogger();
        });

        $log = new Log();

        expect($log->logger)->toBeInstanceOf(CustomLogger::class);
    });
});

describe('log level configuration', function () {

    beforeEach(function () {
        $this->customLogger = new CustomLogger();
        config()->set('dto.log.logger', $this->customLogger);
    });

    afterEach(function () {
        config()->set('dto.log.logger', NullLogger::class);
        config()->set('dto.log.rules', LogLevel::DEBUG);
        config()->set('dto.log.input', LogLevel::DEBUG);
        config()->set('dto.log.raw_input', LogLevel::DEBUG);
        config()->set('dto.log.validation_errors', LogLevel::INFO);
    });

    it('logs rules at configured level', function () {
        config()->set('dto.log.rules', LogLevel::INFO);

        $log = new Log();
        $log->rules(['field' => ['required']]);

        expect($this->customLogger->hasLog(LogLevel::INFO, 'field'))->toBeTrue();
    });

    it('logs input at configured level', function () {
        config()->set('dto.log.input', LogLevel::INFO);

        $log = new Log();
        $log->input(['field' => 'value']);

        expect($this->customLogger->hasLog(LogLevel::INFO, 'value'))->toBeTrue();
    });

    it('logs raw input at configured level', function () {
        config()->set('dto.log.raw_input', LogLevel::ERROR);

        $log = new Log();
        $log->inputRaw(['field' => 'raw_value']);

        expect($this->customLogger->hasLog(LogLevel::ERROR, 'raw_value'))->toBeTrue();
    });

    it('logs validation errors at configured level', function () {
        config()->set('dto.log.validation_errors', LogLevel::ERROR);

        $log = new Log();
        $log->validationErrors(['field' => ['The field is required.']]);

        expect($this->customLogger->hasLog(LogLevel::ERROR, 'required'))->toBeTrue();
    });

    it('allows different log levels for each log type', function () {
        config()->set('dto.log.rules', LogLevel::DEBUG);
        config()->set('dto.log.input', LogLevel::INFO);
        config()->set('dto.log.raw_input', LogLevel::INFO);

        $log = new Log();

        $log->rules(['rules_field' => ['required']]);
        $log->input(['input_field' => 'value']);
        $log->inputRaw(['raw_field' => 'raw_value']);

        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'rules_field'))->toBeTrue();
        expect($this->customLogger->hasLog(LogLevel::INFO, 'input_field'))->toBeTrue();
        expect($this->customLogger->hasLog(LogLevel::INFO, 'raw_field'))->toBeTrue();
    });

    it('defaults to DEBUG level when not configured', function () {
        config()->set('dto.log.rules', null);
        config()->set('dto.log.input', null);
        config()->set('dto.log.raw_input', null);

        $customLogger = new CustomLogger();
        config()->set('dto.log.logger', $customLogger);

        $log = new Log();

        $log->rules(['field' => ['required']]);
        $log->input(['field' => 'value']);
        $log->inputRaw(['field' => 'raw_value']);

        expect(count($customLogger->logs))->toBe(3);
        expect($customLogger->logs[0]['level'])->toBe(LogLevel::DEBUG);
        expect($customLogger->logs[1]['level'])->toBe(LogLevel::DEBUG);
        expect($customLogger->logs[2]['level'])->toBe(LogLevel::DEBUG);
    });
});

describe('integration with DataObject', function () {

    beforeEach(function () {
        $this->customLogger = new CustomLogger();
        config()->set('dto.log.logger', $this->customLogger);
        config()->set('dto.log.rules', LogLevel::DEBUG);
        config()->set('dto.log.input', LogLevel::DEBUG);
        config()->set('dto.log.raw_input', LogLevel::DEBUG);
    });

    afterEach(function () {
        config()->set('dto.log.logger', NullLogger::class);
    });

    it('logs raw input during fromArray execution', function () {
        PrimitiveData::fromArray([
            'string' => 'test',
            'int' => 42,
            'float' => 3.14,
            'bool' => true,
        ]);

        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'raw_input'))->toBeFalse();
        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'string'))->toBeTrue();
        expect($this->customLogger->hasLog(LogLevel::DEBUG, '42'))->toBeTrue();
    });

    it('logs rules during fromArray execution', function () {
        PrimitiveData::fromArray([
            'string' => 'test',
            'int' => 42,
            'float' => 3.14,
            'bool' => true,
        ]);

        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'required'))->toBeTrue();
    });

    it('logs processed input during fromArray execution', function () {
        PrimitiveData::fromArray([
            'string' => 'test',
            'int' => 42,
            'float' => 3.14,
            'bool' => true,
        ]);

        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'test'))->toBeTrue();
    });

    it('captures all three log types during successful fromArray', function () {
        PrimitiveData::fromArray([
            'string' => 'integration_test',
            'int' => 123,
            'float' => 9.99,
            'bool' => false,
        ]);

        $rawInputLogged = false;
        $rulesLogged = false;
        $inputLogged = false;

        foreach ($this->customLogger->logs as $log) {
            if (str_contains($log['message'], 'string')) {
                $rawInputLogged = true;
            }
            if (str_contains($log['message'], 'required')) {
                $rulesLogged = true;
            }
            if (str_contains($log['message'], 'integration_test')) {
                $inputLogged = true;
            }
        }

        expect($rawInputLogged)->toBeTrue('Raw input should be logged');
        expect($rulesLogged)->toBeTrue('Rules should be logged');
        expect($inputLogged)->toBeTrue('Processed input should be logged');
    });

    it('logs even when validation fails', function () {
        try {
            PrimitiveData::fromArray([
                'int' => 42,
                'float' => 3.14,
                'bool' => true,
            ]);
        } catch (\Illuminate\Validation\ValidationException $e) {
            // Expected
        }

        expect($this->customLogger->hasLog(LogLevel::DEBUG, 'required'))->toBeTrue();
        expect($this->customLogger->hasLog(LogLevel::DEBUG, '42'))->toBeTrue();
    });

    it('logs validation errors when validation fails', function () {
        config()->set('dto.log.validation_errors', LogLevel::ERROR);

        try {
            PrimitiveData::fromArray([
                'int' => 42,
                'float' => 3.14,
                'bool' => true,
            ]);
        } catch (\Illuminate\Validation\ValidationException $e) {
            // Expected
        }

        expect($this->customLogger->hasLog(LogLevel::ERROR, 'string'))->toBeTrue();
        expect($this->customLogger->hasLog(LogLevel::ERROR, 'required'))->toBeTrue();
    });
});

describe('logging with NullLogger', function () {

    it('does not throw when logging with NullLogger', function () {
        config()->set('dto.log.logger', NullLogger::class);

        $log = new Log();

        expect(function () use ($log) {
            $log->rules(['field' => ['required']]);
            $log->input(['field' => 'value']);
            $log->inputRaw(['field' => 'raw_value']);
        })->not->toThrow(\Throwable::class);
    });

    it('does not affect DataObject behavior when using NullLogger', function () {
        config()->set('dto.log.logger', NullLogger::class);

        $object = PrimitiveData::fromArray([
            'string' => 'test',
            'int' => 42,
            'float' => 3.14,
            'bool' => true,
        ]);

        expect($object)->toBeInstanceOf(PrimitiveData::class);
        expect($object->string)->toBe('test');
    });
});