<?php

namespace Tests\Feature;

use App\Services\TerritoryGeometry;
use Illuminate\Foundation\Testing\DatabaseTransactions;
use Illuminate\Routing\Middleware\ThrottleRequests;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;
use Tests\TestCase;

class TerritoryGeometrySubdivisionTest extends TestCase
{
    use DatabaseTransactions;

    protected function setUp(): void
    {
        parent::setUp();
        $target = DB::selectOne('SELECT current_database() AS name, inet_server_port() AS port');
        $this->assertStringEndsWith('_test', $target->name);
        $this->assertSame(55441, (int) $target->port);
        $this->assertSame('127.0.0.1', config('database.connections.pgsql.host'));
        $this->withoutMiddleware(ThrottleRequests::class);
    }

    private function location(string $type, ?string $parent = null, string $classification = 'public'): string
    {
        if ($type === 'province' && $parent === null) {
            $parent = $this->location('country');
        }
        $id = (string) Str::uuid();
        DB::table('geo_locations')->insert(['id' => $id, 'name' => 'Synthetic '.$type.' '.$id, 'code' => $id,
            'location_type' => $type, 'parent_id' => $parent, 'data_classification' => $classification,
            'source_system' => 'cartografia-workbook',
            'external_id' => '964a187ad32ea553b9e112cd159caa90b900050c42b7329594a75bcd798a96ff:'.$id]);

        return $id;
    }

    private function geometry(string $territory, string $classification = 'public'): string
    {
        $id = (string) Str::uuid();
        DB::insert("INSERT INTO geo_geometries(id,geo_location_id,geometry_type,geom,properties,data_classification) VALUES (?,?,'polygon',ST_GeomFromText('POLYGON((32 -20,33 -20,33 -19,32 -19,32 -20))',4326),?::jsonb,?)",
            [$id, $territory, json_encode(['purpose' => 'administrative_boundary', 'authority' => 'Synthetic QA only', 'source_version' => '2026-11-04']), $classification]);

        return $id;
    }

    public function test_optional_children_preserve_default_and_sources_without_grandchildren_or_other_provinces(): void
    {
        $province = $this->location('province');
        $district = $this->location('district', $province);
        $post = $this->location('admin_post', $district);
        $this->geometry($province);
        $this->geometry($district);
        $this->geometry($post);
        $this->geometry($this->location('district', $this->location('province')));
        $url = '/api/v1/investment/territory-geometries?territory_id='.$province;
        $this->getJson($url)->assertOk()->assertJsonCount(1, 'areas')->assertJsonPath('child_coverage', null);
        $result = $this->getJson($url.'&include_children=1')->assertOk()->assertJsonCount(2, 'areas')
            ->assertJsonPath('areas.0.territory_id', $province)->assertJsonPath('areas.0.selected_territory', true)
            ->assertJsonPath('areas.1.territory_id', $district)->assertJsonPath('areas.1.child_territory', true)
            ->assertJsonPath('areas.1.source_reference', 'Synthetic QA only')->assertJsonPath('areas.1.source_date', '2026-11-04')
            ->assertJsonPath('child_coverage.registered_count', 1)->assertJsonPath('child_coverage.represented_count', 1)
            ->assertJsonPath('investment_site', false)->assertJsonPath('truncated', false)->json();
        $this->assertFalse($result['areas'][1]['selected_territory']);
        $this->getJson('/api/v1/investment/territory-geometries?territory_id='.$district.'&include_children=1')
            ->assertOk()->assertJsonCount(3, 'areas')->assertJsonPath('child_coverage.location_type', 'admin_post');
    }

    public function test_coverage_counts_only_accessible_references_and_never_publishes_private_boundaries(): void
    {
        $province = $this->location('province');
        $public = $this->location('district', $province);
        $missing = $this->location('district', $province);
        $hidden = $this->location('district', $province, 'internal');
        $privateGeometry = $this->geometry($public, 'internal');
        $this->geometry($hidden);
        $before = DB::table('geo_geometries')->where('id', $privateGeometry)->value('data_classification');
        $this->getJson('/api/v1/investment/territory-geometries?territory_id='.$province.'&include_children=1')
            ->assertOk()->assertJsonCount(0, 'areas')->assertJsonPath('selected_geometry_available', false)
            ->assertJsonPath('child_coverage.registered_count', 2)->assertJsonPath('child_coverage.represented_count', 0);
        $internal = app(TerritoryGeometry::class)->context($province, true, true);
        $this->assertSame(3, $internal['child_coverage']['registered_count']);
        $this->assertSame(2, $internal['child_coverage']['represented_count']);
        $this->assertSame($before, DB::table('geo_geometries')->where('id', $privateGeometry)->value('data_classification'));
        DB::table('geo_locations')->where('id', $missing)->update(['deleted_at' => now()]);
        $this->getJson('/api/v1/investment/territory-geometries?territory_id='.$province.'&include_children=1')
            ->assertOk()->assertJsonPath('child_coverage.registered_count', 1);
    }

    public function test_limits_are_explicit_and_selected_boundary_is_retained_ahead_of_children(): void
    {
        $province = $this->location('province');
        $selected = $this->geometry($province);
        for ($i = 0; $i < 101; $i++) {
            $this->geometry($this->location('district', $province));
        }
        $this->getJson('/api/v1/investment/territory-geometries?territory_id='.$province.'&include_children=1')
            ->assertOk()->assertJsonCount(100, 'areas')->assertJsonPath('areas.0.id', $selected)
            ->assertJsonPath('selected_geometry_available', true)->assertJsonPath('truncated', true)
            ->assertJsonPath('child_coverage.registered_count', 101)->assertJsonPath('child_coverage.represented_count', 99);
    }

    public function test_reference_limit_reports_unrepresented_subdivisions_without_claiming_they_do_not_exist(): void
    {
        $province = $this->location('province');
        for ($i = 0; $i < 501; $i++) {
            $this->location('district', $province);
        }
        $this->getJson('/api/v1/investment/territory-geometries?territory_id='.$province.'&include_children=1')
            ->assertOk()->assertJsonCount(0, 'areas')->assertJsonPath('truncated', true)
            ->assertJsonPath('child_coverage.registered_count', 501)->assertJsonPath('child_coverage.represented_count', 0);
    }

    public function test_invalid_child_option_is_rejected_and_locality_has_no_lower_level(): void
    {
        $province = $this->location('province');
        $district = $this->location('district', $province);
        $post = $this->location('admin_post', $district);
        $locality = $this->location('locality', $post);
        $url = '/api/v1/investment/territory-geometries?territory_id='.$locality;
        $this->getJson($url.'&include_children=all')->assertUnprocessable();
        $this->getJson($url.'&include_children=1')->assertOk()->assertJsonPath('child_coverage.location_type', null)
            ->assertJsonPath('child_coverage.registered_count', 0)->assertJsonPath('truncated', false);
    }
}