<?php

declare(strict_types=1);

namespace App\Tests\Unit\Infrastructure\AI\Agent;

use App\Domain\AI\PromptTemplate;
use App\Domain\AI\Repository\PromptTemplateRepositoryInterface;
use App\Infrastructure\AI\Agent\OllamaVisionAgent;
use App\Infrastructure\AI\OllamaClientInterface;
use App\Infrastructure\AI\PromptTemplateService;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;

final class OllamaVisionAgentTest extends TestCase
{
    private OllamaClientInterface&MockObject $ollama;
    private OllamaVisionAgent $agent;

    protected function setUp(): void
    {
        $this->ollama = $this->createMock(OllamaClientInterface::class);

        $repo = $this->createMock(PromptTemplateRepositoryInterface::class);
        $repo->method('findByKey')->willReturn(new PromptTemplate('vision_analyze', 'prompt'));
        $prompts = new PromptTemplateService($repo);

        $this->agent = new OllamaVisionAgent($this->ollama, $prompts, 'llava');
    }

    public function test_parses_all_fields(): void
    {
        $this->ollama->method('generateWithImage')->willReturn(
            "MANUFACTURER: Lenovo\nMODEL_NAME: ThinkBook 14 G6 IRL\nMODEL_NUMBER: 21KG00NQGE\nSERIAL: PNV09SJZ"
        );

        $result = $this->agent->analyze('/tmp/photo.jpg');

        $this->assertSame('Lenovo', $result['manufacturer']);
        $this->assertSame('ThinkBook 14 G6 IRL', $result['modelName']);
        $this->assertSame('21KG00NQGE', $result['modelNumber']);
        $this->assertSame('PNV09SJZ', $result['serial']);
    }

    public function test_strips_serial_bleed_into_model_number_leading(): void
    {
        // LLM outputs "SERIAL: xyz" as the entire value for MODEL_NUMBER
        $this->ollama->method('generateWithImage')->willReturn(
            "MANUFACTURER: ELPIDA\nMODEL_NAME: 2GB 2Rx8 PC3-10600S-9-10-F1\nMODEL_NUMBER: SERIAL: 1005NK677594\nSERIAL: 1005NK677594"
        );

        $result = $this->agent->analyze('/tmp/photo.jpg');

        $this->assertSame('', $result['modelNumber']);
        $this->assertSame('1005NK677594', $result['serial']);
    }

    public function test_strips_serial_bleed_into_model_name_mid_value(): void
    {
        // LLM appends serial after the model name
        $this->ollama->method('generateWithImage')->willReturn(
            "MANUFACTURER: Lenovo\nMODEL_NAME: ThinkBook 14 G6 IRL SERIAL: PNV09SJZ\nMODEL_NUMBER: 21KG00NQGE\nSERIAL: PNV09SJZ"
        );

        $result = $this->agent->analyze('/tmp/photo.jpg');

        $this->assertSame('ThinkBook 14 G6 IRL', $result['modelName']);
        $this->assertSame('PNV09SJZ', $result['serial']);
    }

    public function test_returns_empty_strings_when_fields_missing(): void
    {
        $this->ollama->method('generateWithImage')->willReturn('I cannot read the nameplate.');

        $result = $this->agent->analyze('/tmp/photo.jpg');

        $this->assertSame('', $result['manufacturer']);
        $this->assertSame('', $result['modelName']);
        $this->assertSame('', $result['modelNumber']);
        $this->assertSame('', $result['serial']);
    }
}