<?php

namespace Tests\Feature;

use App\Models\EconomicCluster;
use App\Models\InvestmentGap;
use App\Models\User;
use App\Models\ValueChain;
use App\Models\ValueChainLink;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Inertia\Testing\AssertableInertia;
use Tests\TestCase;

class ClusterValueChainTest extends TestCase
{
    use RefreshDatabase;

    private function manager(): void
    {
        $user = User::factory()->create();
        config(['portal.managers' => [$user->email]]);
        $this->actingAs($user);
    }

    private function cluster(string $code): EconomicCluster
    {
        return EconomicCluster::create(['code' => $code, 'name' => $code, 'sector' => 'Energia', 'status' => 'planned']);
    }

    private function chain(EconomicCluster $cluster, string $code): ValueChain
    {
        return ValueChain::create(['cluster_id' => $cluster->id, 'code' => $code, 'name' => $code, 'stage' => 'input']);
    }

    public function test_links_are_idempotent_and_reject_self_foreign_and_deleted_stages(): void
    {
        $this->manager();
        $cluster = $this->cluster('C1');
        $origin = $this->chain($cluster, 'Input');
        $destination = $this->chain($cluster, 'Production');
        $foreign = $this->chain($this->cluster('C2'), 'Foreign');
        $url = '/management/clusters/'.$cluster->id.'/chain-links';
        $data = ['from_value_chain_id' => $origin->id, 'to_value_chain_id' => $destination->id, 'link_type' => 'supplies'];
        $this->post($url, $data)->assertSessionHasNoErrors();
        $this->post($url, $data)->assertSessionHasNoErrors();
        $this->assertDatabaseCount('value_chain_links', 1);
        $this->assertSame(1, DB::table('audit_events')->where('entity_type', 'value_chain_links')->count());
        $this->post($url, [...$data, 'to_value_chain_id' => $origin->id])->assertSessionHasErrors('to_value_chain_id');
        $this->post($url, [...$data, 'to_value_chain_id' => $foreign->id])->assertSessionHasErrors('to_value_chain_id');
        $destination->delete();
        $this->post($url, $data)->assertSessionHasErrors('to_value_chain_id');
    }

    public function test_removal_preserves_history_and_cannot_target_another_cluster(): void
    {
        $this->manager();
        $cluster = $this->cluster('C1');
        $other = $this->cluster('C2');
        $data = ['from_value_chain_id' => $this->chain($cluster, 'A')->id, 'to_value_chain_id' => $this->chain($cluster, 'B')->id, 'link_type' => 'supports'];
        $url = '/management/clusters/'.$cluster->id.'/chain-links';
        $this->post($url, $data)->assertSessionHasNoErrors();
        $link = ValueChainLink::firstOrFail();
        $this->delete('/management/clusters/'.$other->id.'/chain-links/'.$link->id)->assertNotFound();
        $this->assertNotSoftDeleted($link);
        $this->delete($url.'/'.$link->id)->assertSessionHasNoErrors();
        $this->assertSoftDeleted($link);
        $this->assertSame(2, DB::table('audit_events')->where('entity_id', $link->id)->count());
        $this->post($url, $data)->assertSessionHasNoErrors();
        $this->assertSame(1, ValueChainLink::count());
        $this->assertDatabaseCount('value_chain_links', 2);
    }

    public function test_gap_requires_details_and_stays_within_cluster(): void
    {
        $this->manager();
        $cluster = $this->cluster('C1');
        $other = $this->cluster('C2');
        $stage = $this->chain($cluster, 'Logistics');
        $foreign = $this->chain($other, 'Foreign');
        $data = ['value_chain_id' => $stage->id, 'title' => 'Armazenagem', 'location' => 'Distrito de teste',
            'required_capacity' => '500 toneladas', 'rationale' => 'Falta capacidade de armazenamento.', 'status' => 'identified', 'call_to_action' => 'Apresentar proposta de investimento.'];
        $url = '/management/clusters/'.$cluster->id.'/gaps';
        $this->post($url, [...$data, 'required_capacity' => ''])->assertSessionHasErrors('required_capacity');
        $this->post($url, [...$data, 'value_chain_id' => $foreign->id])->assertSessionHasErrors('value_chain_id');
        $this->post($url, $data)->assertSessionHasNoErrors();
        $gap = InvestmentGap::firstOrFail();
        $this->put('/management/clusters/'.$other->id.'/gaps/'.$gap->id, [...$data, 'value_chain_id' => $foreign->id])->assertNotFound();
        $this->put($url.'/'.$gap->id, [...$data, 'status' => 'resolved'])->assertSessionHasNoErrors();
        $this->assertSame('resolved', $gap->fresh()->status);
        $event = DB::table('audit_events')->where('entity_id', $gap->id)->where('action', 'created')->first();
        $this->assertStringNotContainsString($data['rationale'], $event->after_data);
        $this->get('/management/clusters/'.$cluster->id.'/edit')->assertInertia(fn (AssertableInertia $page) => $page
            ->component('structures/editor')->has('gaps', 1)->where('gaps.0.status', 'resolved')->has('chainLinks', 0));
    }

    public function test_anonymous_and_unauthorised_users_cannot_write_network_or_gaps(): void
    {
        $cluster = $this->cluster('C1');
        $this->post('/management/clusters/'.$cluster->id.'/gaps', [])->assertRedirect('/login');
        $this->actingAs(User::factory()->create());
        $this->post('/management/clusters/'.$cluster->id.'/gaps', [])->assertForbidden();
        $this->post('/management/clusters/'.$cluster->id.'/chain-links', [])->assertForbidden();
        $this->assertDatabaseCount('investment_gaps', 0);
    }
}