package tech.aiflowy.ai.controller;
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import cn.dev33.satoken.annotation.SaIgnore;
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import cn.hutool.core.collection.CollectionUtil;
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import cn.hutool.core.exceptions.ExceptionUtil;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.thread.ThreadUtil;
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import cn.hutool.core.util.StrUtil;
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import com.agentsflex.core.chain.*;
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import com.agentsflex.core.chain.event.ChainStatusChangeEvent;
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import com.agentsflex.core.chain.event.NodeEndEvent;
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import com.agentsflex.core.chain.event.NodeStartEvent;
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import com.alibaba.fastjson.JSONObject;
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import dev.tinyflow.core.Tinyflow;
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import dev.tinyflow.core.parser.NodeParser;
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import org.springframework.http.MediaType;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
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import tech.aiflowy.ai.entity.AiWorkflow;
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import tech.aiflowy.ai.service.AiLlmService;
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import tech.aiflowy.ai.service.AiWorkflowService;
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import tech.aiflowy.common.ai.MySseEmitter;
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import tech.aiflowy.common.domain.Result;
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import tech.aiflowy.common.web.controller.BaseCurdController;
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import tech.aiflowy.common.web.jsonbody.JsonBody;
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import tech.aiflowy.system.service.SysApiKeyService;
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import javax.annotation.Resource;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.InputStream;
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import java.math.BigInteger;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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/**
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* 控制层。
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*
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* @author michael
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* @since 2024-08-23
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*/
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@RestController
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@RequestMapping("/api/v1/aiWorkflow")
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public class AiWorkflowController extends BaseCurdController<AiWorkflowService, AiWorkflow> {
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private final AiLlmService aiLlmService;
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@Resource
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private SysApiKeyService apiKeyService;
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public AiWorkflowController(AiWorkflowService service, AiLlmService aiLlmService) {
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super(service);
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this.aiLlmService = aiLlmService;
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}
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@PostMapping("/importWorkFlow")
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public Result importWorkFlow(AiWorkflow workflow, MultipartFile jsonFile) throws Exception {
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InputStream is = jsonFile.getInputStream();
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String content = IoUtil.read(is, StandardCharsets.UTF_8);
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workflow.setContent(content);
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save(workflow);
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return Result.success();
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}
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@GetMapping("/exportWorkFlow")
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public Result exportWorkFlow(BigInteger id) {
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AiWorkflow workflow = service.getById(id);
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return Result.success("content", workflow.getContent());
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}
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@GetMapping("getRunningParameters")
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public Result getRunningParameters(@RequestParam BigInteger id) {
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AiWorkflow workflow = service.getById(id);
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if (workflow == null) {
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return Result.fail(1, "can not find the workflow by id: " + id);
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}
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Tinyflow tinyflow = workflow.toTinyflow();
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if (tinyflow == null) {
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return Result.fail(2, "workflow content is empty! ");
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}
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Chain chain = tinyflow.toChain();
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if (chain == null) {
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return Result.fail(2, "节点配置错误，请检查! ");
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}
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List<Parameter> chainParameters = chain.getParameters();
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return Result.success("parameters", chainParameters)
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.set("title", workflow.getTitle())
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.set("description", workflow.getDescription())
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.set("icon", workflow.getIcon());
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}
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@PostMapping("tryRunning")
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public Result tryRunning(@JsonBody(value = "id", required = true) BigInteger id, @JsonBody("variables") Map<String, Object> variables) {
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AiWorkflow workflow = service.getById(id);
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if (workflow == null) {
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return Result.fail(1, "工作流不存在");
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}
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Tinyflow tinyflow = workflow.toTinyflow();
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Chain chain = tinyflow.toChain();
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Map<String, Object> result = chain.executeForResult(variables);
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return Result.success("result", result).set("message", chain.getMessage());
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}
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@PostMapping("tryRunningStream")
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public SseEmitter tryRunningStream(
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@JsonBody(value = "id", required = true) BigInteger id,
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@JsonBody("variables") Map<String, Object> variables,
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HttpServletResponse response) {
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response.setContentType("text/event-stream");
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MySseEmitter emitter = new MySseEmitter((long) (1000 * 60 * 10));
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AiWorkflow workflow = service.getById(id);
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if (workflow == null) {
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throw new RuntimeException("工作流不存在");
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}
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Tinyflow tinyflow = workflow.toTinyflow();
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Chain chain = tinyflow.toChain();
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JSONObject json = new JSONObject();
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chain.addEventListener(new ChainEventListener() {
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@Override
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public void onEvent(ChainEvent event, Chain chain) {
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if (event instanceof NodeStartEvent) {
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JSONObject content = new JSONObject();
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ChainNode node = ((NodeStartEvent) event).getNode();
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content.put("nodeId", node.getId());
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content.put("status", "start");
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json.put("content", content);
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emitter.send(json.toJSONString());
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}
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if (event instanceof NodeEndEvent) {
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ChainNode node = ((NodeEndEvent) event).getNode();
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Map<String, Object> result = ((NodeEndEvent) event).getResult();
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JSONObject content = new JSONObject();
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content.put("nodeId", node.getId());
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content.put("status", "end");
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content.put("res", result);
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json.put("content", content);
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emitter.send(json.toJSONString());
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}
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if (event instanceof ChainStatusChangeEvent) {
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ChainStatus status = ((ChainStatusChangeEvent) event).getStatus();
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if (ChainStatus.FINISHED_ABNORMAL.equals(status)) {
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String message = chain.getMessage();
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JSONObject content = new JSONObject();
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content.put("status", "error");
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content.put("errorMsg", message);
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json.put("content", content);
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emitter.sendAndComplete(json.toJSONString());
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}
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}
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}
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});
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chain.addNodeErrorListener(new NodeErrorListener() {
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@Override
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public void onError(Throwable e, ChainNode node, Map<String, Object> map, Chain chain) {
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String message = ExceptionUtil.getRootCauseMessage(e);
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JSONObject content = new JSONObject();
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content.put("nodeId", node.getId());
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content.put("status", "nodeError");
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content.put("errorMsg", message);
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json.put("content", content);
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emitter.sendAndComplete(json.toJSONString());
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}
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});
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ThreadUtil.execAsync(() -> {
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Map<String, Object> result = chain.executeForResult(variables);
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JSONObject content = new JSONObject();
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content.put("execResult", result);
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json.put("content", content);
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emitter.sendAndComplete(json.toJSONString());
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});
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return emitter;
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}
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@SaIgnore
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@GetMapping(value = "/external/getRunningParams", produces = MediaType.APPLICATION_JSON_VALUE)
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@ResponseBody
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public Result externalGetRunningParameters(HttpServletRequest request,
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@RequestParam BigInteger id) {
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String apiKey = request.getHeader("Authorization");
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apiKeyService.checkApiKey(apiKey);
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return getRunningParameters(id);
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}
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@SaIgnore
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@PostMapping(value = "/external/run", produces = MediaType.APPLICATION_JSON_VALUE)
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@ResponseBody
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public Result externalRun(HttpServletRequest request,
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@JsonBody(value = "id", required = true) BigInteger id,
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@JsonBody("variables") Map<String, Object> variables) {
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String apiKey = request.getHeader("Authorization");
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apiKeyService.checkApiKey(apiKey);
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return tryRunning(id, variables);
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}
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@PostMapping("/singleRun")
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public Result singleRun(
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@JsonBody(value = "id", required = true) BigInteger id,
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@JsonBody(value = "node", required = true) Map<String, Object> node,
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@JsonBody("variables") Map<String, Object> variables) {
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AiWorkflow workflow = service.getById(id);
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if (workflow == null) {
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return Result.fail(1, "工作流不存在");
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}
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List<ChainNode> nodes = new ArrayList<>();
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Tinyflow tinyflow = workflow.toTinyflow();
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Chain fullChain = tinyflow.toChain();
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if (fullChain != null) {
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nodes = fullChain.getNodes();
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}
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Map<String, NodeParser> map = tinyflow.getChainParser().getNodeParserMap();
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NodeParser parser = map.get(node.get("type").toString());
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if (parser == null) {
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return Result.fail(1, "节点类型不存在");
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}
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ChainNode currentNode = parser.parse(new JSONObject(node), tinyflow);
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if (currentNode == null) {
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return Result.fail(1, "节点不存在");
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}
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currentNode.setInwardEdges(null);
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currentNode.setOutwardEdges(null);
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fixParamType(nodes, currentNode);
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Chain chain = new Chain();
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chain.addNode(currentNode);
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Map<String, Object> res = chain.executeForResult(variables);
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return Result.success(res);
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}
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/**
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* 修正引用类的值类型
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*/
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private void fixParamType(List<ChainNode> allNodes, ChainNode currentNode) {
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List<Parameter> currentParams = currentNode.getParameters();
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if (CollectionUtil.isEmpty(currentParams)) {
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return;
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}
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for (Parameter parameter : currentParams) {
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RefType refType = parameter.getRefType();
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if (refType.equals(RefType.REF)) {
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parameter.setRefType(RefType.INPUT);
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String ref = parameter.getRef();
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if (StrUtil.isNotEmpty(ref)) {
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for (ChainNode node : allNodes) {
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List<Parameter> parameters = node.getParameters();
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if (parameters != null) {
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for (Parameter nodeParameter : parameters) {
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String nodeAttr = node.getId() + "." + nodeParameter.getName();
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if (ref.equals(nodeAttr)) {
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parameter.setDataType(nodeParameter.getDataType());
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}
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}
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}
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}
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}
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}
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}
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}
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}
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