<?php

declare(strict_types=1);

namespace BattleForge\Tests\Unit\Application;

use BattleForge\Application\ScenarioDraft;
use BattleForge\Domain\Archetype;
use BattleForge\Domain\Battlefield;
use BattleForge\Domain\DeploymentZone;
use BattleForge\Domain\Position;
use BattleForge\Domain\Scenario;
use BattleForge\Domain\Terrain;
use BattleForge\Domain\UnitState;
use BattleForge\Domain\VictoryCondition;
use PHPUnit\Framework\TestCase;

final class ScenarioDraftTest extends TestCase
{
    public function testItBuildsAScenarioFromFormFields(): void
    {
        $post = [
            'id' => 'demo',
            'name' => 'Demo',
            'battlefieldWidth' => '8',
            'battlefieldHeight' => '8',
            'battlefieldTerrain' => [
                '0:0' => 'forest',
            ],
            'teamA' => [
                'units' => [
                    [
                        'id' => 'a1',
                        'x' => '0',
                        'y' => '0',
                        'archetype' => 'defender',
                        'maxHealth' => '12',
                        'attack' => '3',
                        'defense' => '4',
                        'speed' => '2',
                        'abilities' => ['buff'],
                        'image' => '/assets/placeholders/defender.png',
                    ],
                    ['id' => 'a2', 'x' => '1', 'y' => '0', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'abilities' => [], 'image' => ''],
                    ['id' => 'a3', 'x' => '2', 'y' => '0', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'abilities' => [], 'image' => ''],
                ],
            ],
            'teamB' => [
                'units' => [
                    ['id' => 'b1', 'x' => '7', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => ['area_damage'], 'image' => ''],
                    ['id' => 'b2', 'x' => '6', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => [], 'image' => ''],
                    ['id' => 'b3', 'x' => '5', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => [], 'image' => ''],
                ],
            ],
            'victoryCondition' => 'eliminate_all',
            'holdRoundsRequired' => '1',
        ];

        $draft = ScenarioDraft::fromPost($post);
        $scenario = $draft->toScenario();

        self::assertSame('demo', $scenario->id);
        self::assertSame(8, $scenario->battlefield->width);
        self::assertSame(Terrain::Forest, $scenario->battlefield->terrainAt(new Position(0, 0)));
        self::assertCount(6, $scenario->units);
        self::assertSame('a1', $scenario->units[0]->id);
        self::assertSame(Archetype::Defender, $scenario->units[0]->archetype);
        self::assertSame(['buff'], $scenario->units[0]->abilities);
        self::assertSame(VictoryCondition::EliminateAll, $scenario->victoryCondition);
    }

    public function testItRejectsUnknownArchetype(): void
    {
        $post = $this->validPost();
        $post['teamA']['units'][0]['archetype'] = 'rogue';

        $this->expectException(\InvalidArgumentException::class);
        ScenarioDraft::fromPost($post)->toScenario();
    }

    public function testItRejectsUnknownTerrain(): void
    {
        $post = $this->validPost();
        $post['battlefieldTerrain'] = ['0:0' => 'lava'];

        $this->expectException(\InvalidArgumentException::class);
        ScenarioDraft::fromPost($post)->toScenario();
    }

    public function testItRejectsUnknownVictoryCondition(): void
    {
        $post = $this->validPost();
        $post['victoryCondition'] = 'first_blood';

        $this->expectException(\InvalidArgumentException::class);
        ScenarioDraft::fromPost($post)->toScenario();
    }

    /**
     * @return array<string, mixed>
     */
    private function validPost(): array
    {
        return [
            'id' => 'demo',
            'name' => 'Demo',
            'battlefieldWidth' => '8',
            'battlefieldHeight' => '8',
            'teamA' => [
                'units' => [
                    ['id' => 'a1', 'x' => '0', 'y' => '0', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'abilities' => [], 'image' => ''],
                    ['id' => 'a2', 'x' => '1', 'y' => '0', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'abilities' => [], 'image' => ''],
                    ['id' => 'a3', 'x' => '2', 'y' => '0', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'abilities' => [], 'image' => ''],
                ],
            ],
            'teamB' => [
                'units' => [
                    ['id' => 'b1', 'x' => '7', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => [], 'image' => ''],
                    ['id' => 'b2', 'x' => '6', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => [], 'image' => ''],
                    ['id' => 'b3', 'x' => '5', 'y' => '7', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'abilities' => [], 'image' => ''],
                ],
            ],
            'victoryCondition' => 'eliminate_all',
            'holdRoundsRequired' => '1',
        ];
    }
}