'use strict';

/**
 * 将 LLM 生成的创建请求体写回 crudFlow，提取主键供删除步骤使用。
 */

return storeCreateResult(msg, node);

function storeCreateResult(message, node) {
    if (!message.crudFlow || !message.crudFlow.create) {
        return message;
    }

    const identityField = message.crudFlow.identityField || message.identityField || 'dsid';
    const mockBody = extractMockBody(message);

    if (mockBody) {
        message.crudFlow.create.payload = clone(mockBody);
    } else if (!message.crudFlow.create.payload) {
        node.warn('未从模型生成创建参数，继续使用默认样例', message);
        message.crudFlow.create.payload = clone(message.crudFlow.create.samplePayload || {});
    }

    const payload = message.crudFlow.create.payload || {};
    const primaryKeyValue = payload[identityField];
    if (primaryKeyValue !== undefined) {
        message.primaryKeyValue = primaryKeyValue;
        message.crudFlow.delete = message.crudFlow.delete || {};
        message.crudFlow.delete.actualKey = primaryKeyValue;
    }

    delete message.mock;
    delete message.mockCandidates;
    delete message.mockPrompt;
    delete message.mockSource;
    delete message.mockAutoSelected;
    delete message.llmContext;
    delete message.llmRaw;
    delete message.prompt;
    delete message.method;
    delete message.path;
    delete message.url;
    delete message.headers;
    delete message.statusCode;
    delete message.payload;

    return message;
}

function extractMockBody(message) {
    if (message && message.mock && typeof message.mock === 'object' && message.mock.body && typeof message.mock.body === 'object') {
        return message.mock.body;
    }
    if (message && message.payload && typeof message.payload === 'object' && !Array.isArray(message.payload)) {
        return message.payload;
    }
    return null;
}

function clone(value) {
    return value == null ? value : JSON.parse(JSON.stringify(value));
}