<?php

declare(strict_types=1);

namespace Core\Tenant\Tests\Feature;

use Core\Tenant\Events\WorkspaceOwnershipTransferred;
use Core\Tenant\Exceptions\WorkspaceOwnershipException;
use Core\Tenant\Models\User;
use Core\Tenant\Models\Workspace;
use Core\Tenant\Models\WorkspaceTeam;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Event;
use Tests\TestCase;

class WorkspaceOwnershipTransferTest extends TestCase
{
    use RefreshDatabase;

    public function test_owner_can_transfer_ownership_to_member(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($member->id, ['role' => 'member']);

        $workspace->transferOwnership($member, $owner);

        // Previous owner should now be admin
        $this->assertEquals(
            'admin',
            $workspace->members()->where('user_id', $owner->id)->first()->role
        );

        // New owner should now be owner
        $this->assertEquals(
            'owner',
            $workspace->members()->where('user_id', $member->id)->first()->role
        );

        Event::assertDispatched(WorkspaceOwnershipTransferred::class, function ($event) use ($workspace, $owner, $member) {
            return $event->workspace->id === $workspace->id
                && $event->previousOwner->id === $owner->id
                && $event->newOwner->id === $member->id;
        });
    }

    public function test_owner_can_transfer_ownership_to_admin(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $admin = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($admin->id, ['role' => 'admin']);

        $workspace->transferOwnership($admin, $owner);

        $this->assertEquals(
            'admin',
            $workspace->members()->where('user_id', $owner->id)->first()->role
        );
        $this->assertEquals(
            'owner',
            $workspace->members()->where('user_id', $admin->id)->first()->role
        );
    }

    public function test_transfer_without_acting_user_skips_auth_check(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($member->id, ['role' => 'member']);

        // No acting user passed - should succeed (for programmatic use)
        $workspace->transferOwnership($member);

        $this->assertEquals(
            'owner',
            $workspace->members()->where('user_id', $member->id)->first()->role
        );
    }

    public function test_non_owner_cannot_transfer_ownership(): void
    {
        $owner = User::factory()->create();
        $admin = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($admin->id, ['role' => 'admin']);
        $workspace->users()->attach($member->id, ['role' => 'member']);

        $this->expectException(WorkspaceOwnershipException::class);
        $this->expectExceptionCode(403);

        $workspace->transferOwnership($member, $admin);
    }

    public function test_cannot_transfer_to_non_member(): void
    {
        $owner = User::factory()->create();
        $nonMember = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);

        $this->expectException(WorkspaceOwnershipException::class);
        $this->expectExceptionCode(422);

        $workspace->transferOwnership($nonMember, $owner);
    }

    public function test_cannot_transfer_to_self(): void
    {
        $owner = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);

        $this->expectException(WorkspaceOwnershipException::class);
        $this->expectExceptionCode(422);

        $workspace->transferOwnership($owner, $owner);
    }

    public function test_transfer_updates_team_assignments(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        // Create system teams
        $ownerTeam = WorkspaceTeam::create([
            'workspace_id' => $workspace->id,
            'name' => 'Owner',
            'slug' => WorkspaceTeam::TEAM_OWNER,
            'is_system' => true,
            'colour' => 'violet',
            'sort_order' => 1,
        ]);

        $adminTeam = WorkspaceTeam::create([
            'workspace_id' => $workspace->id,
            'name' => 'Admin',
            'slug' => WorkspaceTeam::TEAM_ADMIN,
            'is_system' => true,
            'colour' => 'blue',
            'sort_order' => 2,
        ]);

        $memberTeam = WorkspaceTeam::create([
            'workspace_id' => $workspace->id,
            'name' => 'Member',
            'slug' => WorkspaceTeam::TEAM_MEMBER,
            'is_system' => true,
            'is_default' => true,
            'colour' => 'emerald',
            'sort_order' => 3,
        ]);

        // Attach users with teams
        $workspace->users()->attach($owner->id, [
            'role' => 'owner',
            'team_id' => $ownerTeam->id,
        ]);
        $workspace->users()->attach($member->id, [
            'role' => 'member',
            'team_id' => $memberTeam->id,
        ]);

        $workspace->transferOwnership($member, $owner);

        // Previous owner should be in admin team
        $ownerMembership = $workspace->members()->where('user_id', $owner->id)->first();
        $this->assertEquals('admin', $ownerMembership->role);
        $this->assertEquals($adminTeam->id, $ownerMembership->team_id);

        // New owner should be in owner team
        $memberMembership = $workspace->members()->where('user_id', $member->id)->first();
        $this->assertEquals('owner', $memberMembership->role);
        $this->assertEquals($ownerTeam->id, $memberMembership->team_id);
    }

    public function test_transfer_dispatches_event(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($member->id, ['role' => 'member']);

        $workspace->transferOwnership($member, $owner);

        Event::assertDispatched(WorkspaceOwnershipTransferred::class, 1);
    }

    public function test_failed_transfer_does_not_dispatch_event(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $nonMember = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);

        try {
            $workspace->transferOwnership($nonMember, $owner);
        } catch (WorkspaceOwnershipException) {
            // Expected
        }

        Event::assertNotDispatched(WorkspaceOwnershipTransferred::class);
    }

    public function test_transfer_returns_workspace_instance(): void
    {
        Event::fake();

        $owner = User::factory()->create();
        $member = User::factory()->create();
        $workspace = Workspace::factory()->create();

        $workspace->users()->attach($owner->id, ['role' => 'owner']);
        $workspace->users()->attach($member->id, ['role' => 'member']);

        $result = $workspace->transferOwnership($member, $owner);

        $this->assertInstanceOf(Workspace::class, $result);
        $this->assertEquals($workspace->id, $result->id);
    }
}