package com.ruoyi.ai.controller;
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import com.ruoyi.ai.assistant.PurchaseAgent;
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import com.ruoyi.ai.assistant.PurchaseIntentExecutor;
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import com.ruoyi.ai.bean.ChatForm;
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import com.ruoyi.ai.context.AiSessionUserContext;
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import com.ruoyi.ai.service.AiChatSessionService;
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import com.ruoyi.ai.store.MongoChatMemoryStore;
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import com.ruoyi.common.utils.SecurityUtils;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.framework.security.LoginUser;
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import com.ruoyi.framework.web.controller.BaseController;
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import com.ruoyi.framework.web.domain.AjaxResult;
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import dev.langchain4j.data.message.AiMessage;
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import dev.langchain4j.data.message.UserMessage;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.springframework.web.bind.annotation.DeleteMapping;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import reactor.core.publisher.Flux;
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import java.util.List;
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@Tag(name = "采购智能体")
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@RestController
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@RequestMapping("/purchase-ai")
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public class PurchaseAiController extends BaseController {
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private final PurchaseAgent purchaseAgent;
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private final PurchaseIntentExecutor purchaseIntentExecutor;
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private final AiSessionUserContext aiSessionUserContext;
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private final MongoChatMemoryStore mongoChatMemoryStore;
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private final AiChatSessionService aiChatSessionService;
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public PurchaseAiController(PurchaseAgent purchaseAgent,
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PurchaseIntentExecutor purchaseIntentExecutor,
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AiSessionUserContext aiSessionUserContext,
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MongoChatMemoryStore mongoChatMemoryStore,
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AiChatSessionService aiChatSessionService) {
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this.purchaseAgent = purchaseAgent;
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this.purchaseIntentExecutor = purchaseIntentExecutor;
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this.aiSessionUserContext = aiSessionUserContext;
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this.mongoChatMemoryStore = mongoChatMemoryStore;
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this.aiChatSessionService = aiChatSessionService;
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}
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@Operation(summary = "采购对话")
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@PostMapping(value = "/chat", produces = "text/stream;charset=utf-8")
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public Flux<String> chat(@RequestBody ChatForm chatForm) {
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if (!StringUtils.hasText(chatForm.getMemoryId())) {
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return Flux.just("memoryId不能为空");
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}
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if (!StringUtils.hasText(chatForm.getMessage())) {
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return Flux.just("message不能为空");
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}
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LoginUser loginUser = SecurityUtils.getLoginUser();
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String memoryId = chatForm.getMemoryId();
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String userMessage = chatForm.getMessage();
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aiSessionUserContext.bind(memoryId, loginUser);
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aiChatSessionService.touchSession(memoryId, loginUser, userMessage);
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String directResponse = purchaseIntentExecutor.tryExecute(memoryId, userMessage);
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if (StringUtils.isNotEmpty(directResponse)) {
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mongoChatMemoryStore.appendMessages(
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memoryId,
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List.of(UserMessage.from(userMessage), AiMessage.from(directResponse))
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);
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aiChatSessionService.refreshSessionStats(memoryId, loginUser);
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return Flux.just(directResponse);
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}
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return purchaseAgent.chat(memoryId, userMessage)
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.doOnComplete(() -> aiChatSessionService.refreshSessionStats(memoryId, loginUser))
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.doOnError(ex -> aiChatSessionService.refreshSessionStats(memoryId, loginUser));
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}
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@Operation(summary = "采购会话列表")
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@GetMapping("/history/sessions")
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public AjaxResult listSessions() {
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return success(aiChatSessionService.listCurrentUserSessions(SecurityUtils.getLoginUser()));
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}
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@Operation(summary = "采购会话消息")
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@GetMapping("/history/messages/{memoryId}")
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public AjaxResult listMessages(@PathVariable String memoryId) {
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return success(aiChatSessionService.listCurrentUserMessages(memoryId, SecurityUtils.getLoginUser()));
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}
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@Operation(summary = "删除采购会话")
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@DeleteMapping("/history/{memoryId}")
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public AjaxResult deleteSession(@PathVariable String memoryId) {
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aiSessionUserContext.remove(memoryId);
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return toAjax(aiChatSessionService.deleteCurrentUserSession(memoryId, SecurityUtils.getLoginUser()));
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}
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}
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