SCSAI 调用流程文档

一、SCSAI 调用完整流程

1.1 初始化流程（前端）

文件位置：/app/lib/aras/client.ts

// 加载SCSAI JS库
export async function loadArasJs(): Promise<boolean> {
  return new Promise((resolve, reject) => {
    // 检查是否已加载
    if (typeof window !== 'undefined' && (window as any).sciot) {
      console.log('SCSAI already loaded');
      resolve(true);
      return;
    }

    const script = document.createElement('script');
    script.src = '/Scripts/aras.innovator.js';
    script.onload = () => {
      try {
        const innovator = new (window as any).Innovator();
        (window as any).sciot = innovator;
        console.log('SCSAI initialized successfully');
        resolve(true);
      } catch (error) {
        console.error('Failed to initialize SCSAI:', error);
        reject(error);
      }
    };
    script.onerror = (error) => {
      console.error('Failed to load SCSAI script:', error);
      reject(new Error('Failed to load SCSAI script'));
    };
    document.head.appendChild(script);
  });
}

// 初始化SCSAI
export async function initAras(): Promise<boolean> {
  try {
    await loadArasJs();
    const isLoggedIn = await (window as any).sciot.isLoggedIn();
    if (isLoggedIn) {
      const user = await (window as any).sciot.getUser();
      console.log('SCSAI User:', user);
      return true;
    } else {
      console.log('Not logged in to SCSAI');
      return false;
    }
  } catch (error) {
    console.error('SCSAI initialization error:', error);
    return false;
  }
}

// 获取全局sciot对象
export function getSciot() {
  if (typeof window !== 'undefined' && (window as any).sciot) {
    return (window as any).sciot;
  }
  throw new Error('SCSAI not initialized. Call initAras() first.');
}

1.2 AML操作流程

文件位置：/app/lib/aras/aml.ts

import { getSciot } from './client';

// 执行AML
export async function executeAml(aml: string): Promise<{ success: boolean; data?: any; error?: string }> {
  try {
    console.log('Executing AML:', aml);
    const sciot = getSciot();
    const result = await sciot.applyAML(aml);
    console.log('AML result:', result);
    return { success: true, data: result };
  } catch (error: any) {
    console.error('AML execution error:', error);
    return { success: false, error: error.message };
  }
}

// 解析AML结果为JSON
export function parseAmlResult(xmlString: string): any[] {
  const parser = new DOMParser();
  const xmlDoc = parser.parseFromString(xmlString, 'text/xml');

  // 检查解析错误
  const parserError = xmlDoc.querySelector('parsererror');
  if (parserError) {
    throw new Error('XML parsing error: ' + parserError.textContent);
  }

  // 检查AML错误
  const errorElement = xmlDoc.querySelector('Error');
  if (errorElement) {
    throw new Error('AML error: ' + errorElement.textContent);
  }

  // 提取Item元素
  const items: any[] = [];
  xmlDoc.querySelectorAll('Item').forEach(item => {
    const obj: any = {};

    // 提取属性
    if (item.getAttribute('type')) obj._type = item.getAttribute('type');
    if (item.getAttribute('id')) obj._id = item.getAttribute('id');

    // 提取子元素
    item.querySelectorAll(':scope > *').forEach(child => {
      obj[child.tagName] = child.textContent;
    });

    items.push(obj);
  });

  return items;
}

// 带解析的AML执行
export async function executeAndParseAml(aml: string): Promise<{ success: boolean; data?: any[]; error?: string }> {
  const result = await executeAml(aml);
  if (!result.success) {
    return result;
  }

  try {
    const items = parseAmlResult(result.data);
    return { success: true, data: items };
  } catch (error: any) {
    return { success: false, error: error.message };
  }
}

1.3 降级策略

文件位置：/app/lib/aras/fallback.ts

import { executeAndParseAml } from './aml';
import { getLocalData } from '../db/local-data';

// 带降级策略的AML操作
export async function executeAmlWithFallback(
  aml: string,
  itemType: string,
  localKey?: string
): Promise<{ success: boolean; data?: any[]; error?: string; source: 'aras' | 'local' }> {
  try {
    // 1. 尝试SCSAI调用
    const result = await executeAndParseAml(aml);

    if (result.success && result.data && result.data.length > 0) {
      console.log('Using SCSAI data for', itemType);
      return { ...result, source: 'aras' };
    }
  } catch (error: any) {
    console.warn('SCSAI call failed:', error.message);
  }

  // 2. 降级到本地数据
  console.log('Using local data for', itemType);
  const localData = localKey ? getLocalData(itemType, localKey) : getLocalData(itemType);

  return {
    success: true,
    data: localData,
    source: 'local'
  };
}

二、调用流程总结

1. loadArasJs()     → 加载 /Scripts/aras.innovator.js
2. new Innovator()   → 创建Innovator实例
3. window.sciot     → 设置全局对象
4. sciot.applyAML() → 执行AML操作
5. parseAmlResult() → 解析XML结果
6. 降级策略         → SCSAI失败时使用本地数据

三、快速验证

在浏览器控制台执行：

// 1. 加载SCSAI
fetch('/Scripts/aras.innovator.js').then(r => r.text()).then(s => eval(s));

// 2. 创建实例
const innovator = new Innovator();

// 3. 设置全局对象
window.sciot = innovator;

// 4. 测试查询
window.sciot.applyAML('<AML><Item type="ECR" action="get"></Item></AML>')
  .then(r => console.log(r))
  .catch(e => console.error(e));

四、关键文件位置

| 文件 | 位置 | 用途 |

|------|------|------|

| aras-client.ts | /app/lib/aras/client.ts | SCSAI初始化和连接 |

| aras-aml.ts | /app/lib/aras/aml.ts | AML执行和解析 |

| aras-fallback.ts | /app/lib/aras/fallback.ts | 降级策略 |

| aras-connection.ts | /app/lib/aras/connection.ts | SCSAI连接配置 |