<?php

declare(strict_types=1);

namespace BattleForge\Http\Handlers;

use BattleForge\Domain\CombatEngine;
use BattleForge\Domain\CombatException;
use BattleForge\Domain\Position;
use BattleForge\Http\MatchActionSupport;
use BattleForge\Http\Request;
use BattleForge\Http\Response;

final class PostMatchAbility
{
    public function __construct(private readonly string $secret)
    {
    }

    /** @param array<string, string> $params */
    public function handle(Request $request, array $params): Response
    {
        $support = new MatchActionSupport($this->secret);
        $result = $support->verify($request);
        if ($result->response !== null) {
            return $result->response;
        }
        $matchId = $result->matchIdAndMatch['matchId'];
        $match = $result->matchIdAndMatch['match'];

        $payload = json_decode($request->rawBody, true);
        $unitId = (string) ($payload['unitId'] ?? '');
        $abilityId = (string) ($payload['abilityId'] ?? '');
        $x = (int) ($payload['x'] ?? -1);
        $y = (int) ($payload['y'] ?? -1);

        try {
            $next = (new CombatEngine())->useAbility($match, $unitId, $abilityId, new Position($x, $y));
        } catch (CombatException $exception) {
            return PostMatchMove::rejectionResponse($this->secret, $matchId, $match, $exception->getMessage());
        }

        return Response::json(200, PostMatchMove::successResponse($this->secret, $matchId, $next));
    }
}