<?php

namespace Tests\Feature;

use App\Models\Project;
use App\Models\ProjectMonthPlan;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class ProjectMonthPlanTest extends TestCase
{
    use RefreshDatabase;

    protected function loginAsManager()
    {
        $user = User::factory()->create([
            'email' => 'manager@test.com',
            'password' => bcrypt('password123'),
            'role' => 'manager',
            'active' => true,
        ]);

        $response = $this->postJson('/api/auth/login', [
            'email' => 'manager@test.com',
            'password' => 'password123',
        ]);

        return $response->json('access_token');
    }

    public function test_bulk_update_creates_new_plan_records(): void
    {
        $token = $this->loginAsManager();
        $project = Project::factory()->create();

        $response = $this->withHeader('Authorization', "Bearer {$token}")
            ->putJson('/api/project-month-plans/bulk', [
                'year' => 2026,
                'items' => [
                    [
                        'project_id' => $project->id,
                        'month' => '2026-01',
                        'planned_hours' => 100,
                    ],
                ],
            ]);

        $response->assertStatus(200);
    }

    public function test_validation_rejects_invalid_data(): void
    {
        $token = $this->loginAsManager();

        $response = $this->withHeader('Authorization', "Bearer {$token}")
            ->putJson('/api/project-month-plans/bulk', [
                'year' => 2026,
                'items' => [
                    [
                        'project_id' => 'invalid-uuid',
                        'month' => '2026-01',
                        'planned_hours' => 100,
                    ],
                ],
            ]);

        $response->assertStatus(422);
    }

    public function test_index_returns_existing_plan_for_month(): void
    {
        $token = $this->loginAsManager();
        $project = Project::factory()->create();

        ProjectMonthPlan::create([
            'project_id' => $project->id,
            'month' => '2026-02-01',
            'planned_hours' => 50,
        ]);

        $projectData = $this->fetchProjectPlan($token, $project);

        $this->assertNotNull($projectData['months']['2026-02-01']);
    }

    public function test_index_returns_null_for_missing_month(): void
    {
        $token = $this->loginAsManager();
        $project = Project::factory()->create();

        $projectData = $this->fetchProjectPlan($token, $project);

        $this->assertNull($projectData['months']['2026-03-01']);
    }

    public function test_bulk_update_roundtrip_populates_month(): void
    {
        $token = $this->loginAsManager();
        $project = Project::factory()->create();

        $this->withHeader('Authorization', "Bearer {$token}")
            ->putJson('/api/project-month-plans/bulk', [
                'year' => 2026,
                'items' => [
                    [
                        'project_id' => $project->id,
                        'month' => '2026-02',
                        'planned_hours' => 72,
                    ],
                ],
            ])
            ->assertStatus(200);

        $projectData = $this->fetchProjectPlan($token, $project);

        $this->assertNotNull($projectData['months']['2026-02-01']);
        $this->assertEquals(72, $projectData['plan_sum']);
    }

    private function fetchProjectPlan(string $token, Project $project): array
    {
        $response = $this->withHeader('Authorization', "Bearer {$token}")
            ->getJson('/api/project-month-plans?year=2026');

        $response->assertStatus(200);

        $projectData = collect($response->json('data'))->firstWhere('project_id', $project->id);

        $this->assertNotNull($projectData);

        return $projectData;
    }
}