<?php

namespace Modules\ProjectManagement\Tests\Feature;

use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Modules\ProjectManagement\Models\Project;
use Modules\ProjectManagement\Enums\ProjectStatus;
use Spatie\Permission\Models\Role;
use Tests\TestCase;

class ProjectRollupTest extends TestCase
{
    use RefreshDatabase;

    protected User $user;
    protected Project $parentProject;
    protected Project $childProject;

    protected function setUp(): void
    {
        parent::setUp();

        $role = Role::firstOrCreate(['name' => 'Super Admin']);
        $this->user = User::factory()->create([
            'status' => 'active',
            'user_type' => 'admin',
        ]);
        $this->user->assignRole($role);

        // Parent Project
        $this->parentProject = Project::create([
            'name' => 'Terminal A Expansion',
            'code' => 'PRJ-PARENT-01',
            'status' => ProjectStatus::InProgress,
            'project_type' => 'standard',
            'contract_value' => 100000.00,
            'total_capitalization' => 30000.00,
        ]);

        // Child Project (Extension / Variation Order)
        $this->childProject = Project::create([
            'name' => 'Terminal A - Gate 5 Extension',
            'code' => 'PRJ-CHILD-01',
            'parent_project_id' => $this->parentProject->id,
            'status' => ProjectStatus::InProgress,
            'project_type' => 'extension',
            'contract_value' => 50000.00,
            'total_capitalization' => 15000.00,
        ]);
    }

    public function test_rollup_calculations_aggregate_parent_and_child(): void
    {
        // Combined Contract Value (100k parent + 50k child = 150k rollup)
        $this->assertEquals(150000.00, $this->parentProject->rollup_contract_value);

        // Combined Capitalization (30k parent + 15k child = 45k rollup)
        $this->assertEquals(45000.00, $this->parentProject->rollup_capitalization);
    }

    public function test_parent_completion_blocked_by_active_children(): void
    {
        // Assign a project manager to avoid PM requirement exception
        $this->parentProject->personnel()->attach($this->user->id, ['role' => 'pm']);

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Cannot complete or close parent project while there are active child projects (extensions).');

        // Try to transition parent directly to Completed
        $this->parentProject->transitionTo(ProjectStatus::Completed);
    }

    public function test_parent_completion_allowed_when_children_are_completed(): void
    {
        // Complete the child project first
        $this->childProject->update(['status' => ProjectStatus::Completed]);

        // Assign PM
        $this->parentProject->personnel()->attach($this->user->id, ['role' => 'pm']);

        // Transition parent to Completed should work now
        $this->parentProject->transitionTo(ProjectStatus::Completed);

        $this->assertEquals(ProjectStatus::Completed, $this->parentProject->fresh()->status);
    }
}