<?php
header('Content-Type: application/json; charset=utf-8');

try {
    require __DIR__ . '/db.php';

    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
        http_response_code(405);
        echo json_encode(['ok' => false, 'erro' => 'Metodo nao permitido']);
        exit;
    }

    $payload = json_decode(file_get_contents('php://input'), true);
    if (!is_array($payload) || !isset($payload['respostas'], $payload['resultado'])) {
        http_response_code(400);
        echo json_encode(['ok' => false, 'erro' => 'Dados invalidos']);
        exit;
    }

    $pdo->exec(
        'CREATE TABLE IF NOT EXISTS diagnosticos (
            id INT UNSIGNED NOT NULL AUTO_INCREMENT,
            nome VARCHAR(150) NULL,
            empresa VARCHAR(200) NULL,
            email VARCHAR(255) NULL,
            telefone VARCHAR(40) NULL,
            consent_contact TINYINT(1) NOT NULL DEFAULT 0,
            consent_privacy TINYINT(1) NOT NULL DEFAULT 0,
            respostas_json LONGTEXT NOT NULL,
            resultado_json LONGTEXT NOT NULL,
            created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
            PRIMARY KEY (id)
        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci'
    );

    $answers = $payload['respostas'];
    $result = $payload['resultado'];
    $toJson = static function ($value) {
        return json_encode($value, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR);
    };

    $stmt = $pdo->prepare(
        'INSERT INTO diagnosticos
            (nome, empresa, email, telefone, consent_contact, consent_privacy, respostas_json, resultado_json)
         VALUES
            (:nome, :empresa, :email, :telefone, :consent_contact, :consent_privacy, :respostas_json, :resultado_json)'
    );
    $stmt->execute([
        ':nome' => $answers['leadNome'] ?? null,
        ':empresa' => $answers['leadEmpresa'] ?? null,
        ':email' => $answers['leadEmail'] ?? null,
        ':telefone' => $answers['leadTel'] ?? null,
        ':consent_contact' => !empty($answers['consentContact']) ? 1 : 0,
        ':consent_privacy' => !empty($answers['consentPrivacy']) ? 1 : 0,
        ':respostas_json' => $toJson($answers),
        ':resultado_json' => $toJson($result),
    ]);

    echo json_encode(['ok' => true, 'id' => $pdo->lastInsertId()]);
} catch (Throwable $error) {
    http_response_code(500);
    echo json_encode(['ok' => false, 'erro' => 'Nao foi possivel guardar o diagnostico']);
}