#
Junjie
9 天以前 abda5558251735836c6e5089818295a7c9175f63
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package com.zy.ai.service.impl;
 
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.zy.ai.domain.autotune.AutoTuneApplyResult;
import com.zy.ai.domain.autotune.AutoTuneTriggerType;
import com.zy.ai.entity.AiPromptTemplate;
import com.zy.ai.entity.ChatCompletionRequest;
import com.zy.ai.entity.ChatCompletionResponse;
import com.zy.ai.enums.AiPromptScene;
import com.zy.ai.mcp.service.SpringAiMcpToolManager;
import com.zy.ai.service.AiPromptTemplateService;
import com.zy.ai.service.AutoTuneAgentService;
import com.zy.ai.service.LlmChatService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
 
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
 
@Slf4j
@Service
@RequiredArgsConstructor
public class AutoTuneAgentServiceImpl implements AutoTuneAgentService {
 
    private static final int MAX_TOOL_ROUNDS = 10;
    private static final double TEMPERATURE = 0.2D;
    private static final int MAX_TOKENS = 2048;
    private static final String TOOL_GET_SNAPSHOT = "wcs_local_dispatch_get_auto_tune_snapshot";
    private static final String TOOL_GET_RECENT_JOBS = "wcs_local_dispatch_get_recent_auto_tune_jobs";
    private static final String TOOL_APPLY_CHANGES = "wcs_local_dispatch_apply_auto_tune_changes";
    private static final String TOOL_REVERT_LAST_JOB = "wcs_local_dispatch_revert_last_auto_tune_job";
    private static final String MCP_STATUS_SUCCESS = "success";
    private static final String MCP_STATUS_REJECTED = "rejected";
    private static final String MCP_STATUS_FAILED = "failed";
    private static final Set<String> ALLOWED_TOOL_NAMES = Set.of(
            TOOL_GET_SNAPSHOT,
            TOOL_GET_RECENT_JOBS,
            TOOL_APPLY_CHANGES,
            TOOL_REVERT_LAST_JOB
    );
 
    private final LlmChatService llmChatService;
    private final SpringAiMcpToolManager mcpToolManager;
    private final AiPromptTemplateService aiPromptTemplateService;
 
    @Override
    public AutoTuneAgentResult runAutoTune(String triggerType) {
        String normalizedTriggerType = normalizeTriggerType(triggerType);
        UsageCounter usageCounter = new UsageCounter();
        RunState runState = new RunState();
        boolean maxRoundsReached = false;
        StringBuilder summaryBuffer = new StringBuilder();
 
        try {
            List<Object> tools = filterAllowedTools(mcpToolManager.buildOpenAiTools());
            if (tools == null || tools.isEmpty()) {
                throw new IllegalStateException("No auto-tune MCP tools registered");
            }
 
            AiPromptTemplate promptTemplate = aiPromptTemplateService.resolvePublished(AiPromptScene.AUTO_TUNE_DISPATCH.getCode());
            List<ChatCompletionRequest.Message> messages = buildMessages(promptTemplate, normalizedTriggerType);
 
            for (int round = 0; round < MAX_TOOL_ROUNDS; round++) {
                ChatCompletionResponse response = llmChatService.chatCompletionOrThrow(messages, TEMPERATURE, MAX_TOKENS, tools);
                ChatCompletionRequest.Message assistantMessage = extractAssistantMessage(response);
                usageCounter.add(response.getUsage());
                messages.add(assistantMessage);
                appendSummary(summaryBuffer, assistantMessage.getContent());
 
                List<ChatCompletionRequest.ToolCall> toolCalls = assistantMessage.getTool_calls();
                if (toolCalls == null || toolCalls.isEmpty()) {
                    return buildResult(runState.isSuccessful(), normalizedTriggerType, summaryBuffer, runState,
                            usageCounter, false);
                }
 
                for (ChatCompletionRequest.ToolCall toolCall : toolCalls) {
                    Object toolOutput = callMountedTool(toolCall, runState, normalizedTriggerType);
                    messages.add(buildToolMessage(toolCall, toolOutput));
                }
            }
            maxRoundsReached = true;
            return buildResult(false, normalizedTriggerType, summaryBuffer, runState, usageCounter, maxRoundsReached);
        } catch (Exception exception) {
            log.error("Auto tune agent stopped with error", exception);
            appendSummary(summaryBuffer, "自动调参 Agent 执行异常: " + exception.getMessage());
            runState.markToolError();
            return buildResult(false, normalizedTriggerType, summaryBuffer, runState, usageCounter, maxRoundsReached);
        }
    }
 
    private List<ChatCompletionRequest.Message> buildMessages(AiPromptTemplate promptTemplate, String triggerType) {
        List<ChatCompletionRequest.Message> messages = new ArrayList<>();
 
        ChatCompletionRequest.Message systemMessage = new ChatCompletionRequest.Message();
        systemMessage.setRole("system");
        systemMessage.setContent(promptTemplate == null ? "" : promptTemplate.getContent());
        messages.add(systemMessage);
 
        ChatCompletionRequest.Message userMessage = new ChatCompletionRequest.Message();
        userMessage.setRole("user");
        userMessage.setContent("请执行一次后台 WCS 自动调参。triggerType=" + triggerType
                + "。必须先调用 wcs_local_dispatch_get_auto_tune_snapshot 获取事实;如需提交变更,"
                + "必须先 dry-run,再根据 dry-run 结果决定是否实际应用;实际应用时必须带上 dry-run 返回的 dryRunToken。"
                + "禁止在没有收到 wcs_local_dispatch_apply_auto_tune_changes 或 wcs_local_dispatch_revert_last_auto_tune_job 工具返回结果时声称已试算、已应用或已回滚。"
                + "必须检查 taskSnapshot.stationLimitBlockedTasks 和 taskSnapshot.outboundTaskSamples 中的 systemMsg、wrkSts、batchSeq,判断是否存在被上限挡住的早序出库任务。"
                + "所有提交给 wcs_local_dispatch_apply_auto_tune_changes 的 changes 都必须先匹配 snapshot.ruleSnapshot 中对应 targetType/targetKey 的规则。"
                + "每个参数都必须满足 minValue、maxValue 或 dynamicMaxValue、maxStep、cooldownMinutes 和规则 note;找不到规则或无法证明动态上限时禁止提交。"
                + "dry-run 返回 success=false 或 rejectCount>0 时,必须停止实际应用并说明拒绝原因,或重新提交完全合法的 dry-run。"
                + "不要输出自由格式 JSON 供外层解析。");
        messages.add(userMessage);
        return messages;
    }
 
    private ChatCompletionRequest.Message extractAssistantMessage(ChatCompletionResponse response) {
        if (response == null || response.getChoices() == null || response.getChoices().isEmpty()) {
            throw new IllegalStateException("LLM returned empty response");
        }
        ChatCompletionRequest.Message message = response.getChoices().get(0).getMessage();
        if (message == null) {
            throw new IllegalStateException("LLM returned empty message");
        }
        return message;
    }
 
    private Object callMountedTool(ChatCompletionRequest.ToolCall toolCall, RunState runState, String triggerType) {
        String toolName = resolveToolName(toolCall);
        if (!ALLOWED_TOOL_NAMES.contains(toolName)) {
            throw new IllegalArgumentException("Disallowed auto-tune MCP tool: " + toolName);
        }
        JSONObject arguments = parseArguments(toolCall);
        applySchedulerTriggerType(toolName, triggerType, arguments);
        long startTimeMillis = System.currentTimeMillis();
        try {
            Object output = mcpToolManager.callTool(toolName, arguments);
            runState.markToolSuccess(toolName);
            recordMutationResult(toolName, arguments, output, runState);
            if (TOOL_APPLY_CHANGES.equals(toolName) && isRejectedApplyResult(output)) {
                runState.markApplyRejected();
                Object wrappedOutput = withRejectedApplyInstruction(output);
                runState.addMcpCall(buildMcpCall(toolName, arguments, wrappedOutput, startTimeMillis, null));
                return wrappedOutput;
            }
            runState.addMcpCall(buildMcpCall(toolName, arguments, output, startTimeMillis, null));
            return output;
        } catch (Exception exception) {
            runState.addMcpCall(buildMcpCall(toolName, arguments, null, startTimeMillis, exception));
            throw new IllegalStateException("Auto-tune MCP tool failed: " + toolName + ", " + exception.getMessage(),
                    exception);
        }
    }
 
    private AutoTuneAgentService.McpCallResult buildMcpCall(String toolName,
                                                            JSONObject arguments,
                                                            Object output,
                                                            long startTimeMillis,
                                                            Exception exception) {
        AutoTuneAgentService.McpCallResult call = new AutoTuneAgentService.McpCallResult();
        call.setToolName(toolName);
        call.setDryRun(resolveDryRun(arguments));
        call.setDurationMs(Math.max(0L, System.currentTimeMillis() - startTimeMillis));
        call.setRequestJson(JSON.toJSONString(arguments == null ? new JSONObject() : arguments));
        if (exception != null) {
            call.setStatus(MCP_STATUS_FAILED);
            call.setErrorMessage(exception.getMessage());
            return call;
        }
        call.setStatus(resolveMcpStatus(output));
        call.setResponseJson(JSON.toJSONString(output));
        call.setApplyJobId(resolveApplyJobId(output));
        call.setSuccessCount(resolveSuccessCount(output));
        call.setRejectCount(resolveRejectCount(output));
        if (MCP_STATUS_REJECTED.equals(call.getStatus())) {
            call.setErrorMessage(resolveApplyError(output));
        }
        return call;
    }
 
    private Boolean resolveDryRun(JSONObject arguments) {
        if (arguments == null || !arguments.containsKey("dryRun")) {
            return null;
        }
        return Boolean.TRUE.equals(arguments.getBoolean("dryRun"));
    }
 
    private String resolveMcpStatus(Object output) {
        if (isRejectedApplyResult(output)) {
            return MCP_STATUS_REJECTED;
        }
        return MCP_STATUS_SUCCESS;
    }
 
    private Long resolveApplyJobId(Object output) {
        if (output instanceof AutoTuneApplyResult) {
            return ((AutoTuneApplyResult) output).getJobId();
        }
        if (output instanceof Map<?, ?>) {
            Object jobId = ((Map<?, ?>) output).get("jobId");
            if (jobId instanceof Number) {
                return ((Number) jobId).longValue();
            }
            if (jobId != null) {
                try {
                    return Long.parseLong(String.valueOf(jobId));
                } catch (NumberFormatException ignore) {
                    return null;
                }
            }
        }
        return null;
    }
 
    private Integer resolveSuccessCount(Object output) {
        if (output instanceof AutoTuneApplyResult) {
            return safeCount(((AutoTuneApplyResult) output).getSuccessCount());
        }
        if (output instanceof Map<?, ?>) {
            return safeCount(((Map<?, ?>) output).get("successCount"));
        }
        return null;
    }
 
    private Integer resolveRejectCount(Object output) {
        if (output instanceof AutoTuneApplyResult) {
            return safeCount(((AutoTuneApplyResult) output).getRejectCount());
        }
        if (output instanceof Map<?, ?>) {
            return safeCount(((Map<?, ?>) output).get("rejectCount"));
        }
        return null;
    }
 
    private String resolveApplyError(Object output) {
        if (output instanceof AutoTuneApplyResult) {
            AutoTuneApplyResult result = (AutoTuneApplyResult) output;
            return firstRejectReason(result.getChanges(), result.getSummary());
        }
        if (output instanceof Map<?, ?>) {
            Map<?, ?> result = (Map<?, ?>) output;
            Object changes = result.get("changes");
            if (changes instanceof List<?>) {
                for (Object change : (List<?>) changes) {
                    if (change instanceof Map<?, ?>) {
                        Object rejectReason = ((Map<?, ?>) change).get("rejectReason");
                        if (!isBlank(rejectReason == null ? null : String.valueOf(rejectReason))) {
                            return String.valueOf(rejectReason);
                        }
                    }
                }
            }
            Object summary = result.get("summary");
            return summary == null ? null : String.valueOf(summary);
        }
        return null;
    }
 
    private String firstRejectReason(List<?> changes, String fallback) {
        if (changes != null) {
            for (Object change : changes) {
                String rejectReason = null;
                if (change instanceof com.zy.ai.entity.AiAutoTuneChange) {
                    rejectReason = ((com.zy.ai.entity.AiAutoTuneChange) change).getRejectReason();
                } else if (change instanceof Map<?, ?>) {
                    Object value = ((Map<?, ?>) change).get("rejectReason");
                    rejectReason = value == null ? null : String.valueOf(value);
                }
                if (!isBlank(rejectReason)) {
                    return rejectReason;
                }
            }
        }
        return fallback;
    }
 
    private void recordMutationResult(String toolName, JSONObject arguments, Object output, RunState runState) {
        if (TOOL_APPLY_CHANGES.equals(toolName)) {
            boolean dryRun = Boolean.TRUE.equals(arguments.getBoolean("dryRun"));
            if (!dryRun) {
                runState.markActualApply();
                runState.addCounts(output);
            } else if (isRejectedApplyResult(output)) {
                runState.addCounts(output);
            }
            return;
        }
        if (TOOL_REVERT_LAST_JOB.equals(toolName)) {
            runState.markRollback();
            runState.addCounts(output);
        }
    }
 
    private boolean isRejectedApplyResult(Object output) {
        if (output instanceof AutoTuneApplyResult) {
            AutoTuneApplyResult result = (AutoTuneApplyResult) output;
            return !Boolean.TRUE.equals(result.getSuccess()) || safeCount(result.getRejectCount()) > 0;
        }
        if (output instanceof Map<?, ?>) {
            Map<?, ?> result = (Map<?, ?>) output;
            if (!isApplyResultShape(result)) {
                return false;
            }
            if (!Boolean.TRUE.equals(result.get("success"))) {
                return true;
            }
            return safeCount(result.get("rejectCount")) > 0 || hasRejectedChange(result.get("changes"));
        }
        return false;
    }
 
    private boolean isApplyResultShape(Map<?, ?> result) {
        return result.containsKey("success")
                || result.containsKey("rejectCount")
                || result.containsKey("changes")
                || result.containsKey("dryRun")
                || result.containsKey("dryRunToken");
    }
 
    private Object withRejectedApplyInstruction(Object output) {
        JSONObject wrappedOutput = JSON.parseObject(JSON.toJSONString(output));
        wrappedOutput.put("agentInstruction",
                "本次 dry-run/apply 未完全通过,禁止继续实际应用。必须读取 changes[].rejectReason,"
                        + "并回到 snapshot.ruleSnapshot 按每个目标参数的 minValue、maxValue/dynamicMaxValue、maxStep、cooldownMinutes 和 note 重新校验。"
                        + "只有所有 changes 均满足规则并通过 dry-run 后,才允许实际应用。");
        return wrappedOutput;
    }
 
    private boolean hasRejectedChange(Object changes) {
        if (!(changes instanceof List<?>)) {
            return false;
        }
        for (Object change : (List<?>) changes) {
            if (!(change instanceof Map<?, ?>)) {
                continue;
            }
            Object status = ((Map<?, ?>) change).get("resultStatus");
            if ("rejected".equals(status) || "failed".equals(status)) {
                return true;
            }
        }
        return false;
    }
 
    private static int safeCount(Object value) {
        if (value instanceof Number) {
            return ((Number) value).intValue();
        }
        if (value == null) {
            return 0;
        }
        try {
            return Integer.parseInt(String.valueOf(value));
        } catch (NumberFormatException ignore) {
            return 0;
        }
    }
 
    private void applySchedulerTriggerType(String toolName, String triggerType, JSONObject arguments) {
        if (!TOOL_APPLY_CHANGES.equals(toolName)) {
            return;
        }
        if (!AutoTuneTriggerType.AUTO.getCode().equals(triggerType)) {
            return;
        }
        arguments.put("triggerType", AutoTuneTriggerType.AUTO.getCode());
    }
 
    private ChatCompletionRequest.Message buildToolMessage(ChatCompletionRequest.ToolCall toolCall, Object toolOutput) {
        ChatCompletionRequest.Message toolMessage = new ChatCompletionRequest.Message();
        toolMessage.setRole("tool");
        toolMessage.setTool_call_id(toolCall == null ? null : toolCall.getId());
        toolMessage.setContent(JSON.toJSONString(toolOutput));
        return toolMessage;
    }
 
    private String resolveToolName(ChatCompletionRequest.ToolCall toolCall) {
        if (toolCall == null || toolCall.getFunction() == null || isBlank(toolCall.getFunction().getName())) {
            throw new IllegalArgumentException("missing tool name");
        }
        return toolCall.getFunction().getName();
    }
 
    private JSONObject parseArguments(ChatCompletionRequest.ToolCall toolCall) {
        String rawArguments = toolCall == null || toolCall.getFunction() == null
                ? null
                : toolCall.getFunction().getArguments();
        if (isBlank(rawArguments)) {
            return new JSONObject();
        }
        try {
            return JSON.parseObject(rawArguments);
        } catch (Exception exception) {
            JSONObject arguments = new JSONObject();
            arguments.put("_raw", rawArguments);
            return arguments;
        }
    }
 
    private AutoTuneAgentResult buildResult(boolean success,
                                            String triggerType,
                                            StringBuilder summaryBuffer,
                                            RunState runState,
                                            UsageCounter usageCounter,
                                            boolean maxRoundsReached) {
        AutoTuneAgentResult result = new AutoTuneAgentResult();
        result.setSuccess(success);
        result.setTriggerType(triggerType);
        result.setToolCallCount(runState.getToolCallCount());
        result.setLlmCallCount(usageCounter.getLlmCallCount());
        result.setPromptTokens(usageCounter.getPromptTokens());
        result.setCompletionTokens(usageCounter.getCompletionTokens());
        result.setTotalTokens(usageCounter.getTotalTokens());
        result.setMaxRoundsReached(maxRoundsReached);
        result.setActualApplyCalled(runState.isActualApplyCalled());
        result.setRollbackCalled(runState.isRollbackCalled());
        result.setSuccessCount(runState.getSuccessCount());
        result.setRejectCount(runState.getRejectCount());
        result.setMcpCalls(runState.getMcpCalls());
 
        String summary = summaryBuffer == null ? "" : summaryBuffer.toString().trim();
        if (runState.getToolCallCount() <= 0 && runState.getMcpCallCount() <= 0) {
            summary = "自动调参 Agent 未调用任何允许的 MCP 工具,未执行调参。" + (summary.isEmpty() ? "" : "\n" + summary);
        } else if (!runState.isSnapshotCalled()) {
            summary = summary + "\n自动调参 Agent 未调用快照工具,结果不完整。";
        }
        if (runState.hasToolError()) {
            summary = summary + "\n自动调参 Agent 存在工具调用错误,已标记为失败。";
        }
        if (runState.hasApplyRejected()) {
            summary = summary + "\n自动调参 Agent 存在被拒绝的 dry-run/apply 结果,未视为成功调参。";
        }
        if (success && !runState.hasActualMutation()) {
            summary = "自动调参 Agent 未调用实际应用或回滚工具,未修改运行参数。"
                    + (summary.isEmpty() ? "" : "\n" + summary);
        }
        if (maxRoundsReached) {
            summary = summary + "\n自动调参 Agent 达到最大工具调用轮次,已停止。";
        }
        result.setSummary(summary);
        return result;
    }
 
    private List<Object> filterAllowedTools(List<Object> tools) {
        List<Object> allowedTools = new ArrayList<>();
        if (tools == null || tools.isEmpty()) {
            return allowedTools;
        }
        for (Object tool : tools) {
            String toolName = resolveOpenAiToolName(tool);
            if (ALLOWED_TOOL_NAMES.contains(toolName)) {
                allowedTools.add(tool);
            }
        }
        return allowedTools;
    }
 
    private String resolveOpenAiToolName(Object tool) {
        if (!(tool instanceof Map<?, ?> toolMap)) {
            return null;
        }
        Object function = toolMap.get("function");
        if (!(function instanceof Map<?, ?> functionMap)) {
            return null;
        }
        Object name = functionMap.get("name");
        return name == null ? null : String.valueOf(name);
    }
 
    private void appendSummary(StringBuilder summaryBuffer, String content) {
        if (summaryBuffer == null || isBlank(content)) {
            return;
        }
        if (summaryBuffer.length() > 0) {
            summaryBuffer.append('\n');
        }
        summaryBuffer.append(content.trim());
    }
 
    private String normalizeTriggerType(String triggerType) {
        return isBlank(triggerType) ? "agent" : triggerType.trim();
    }
 
    private boolean isBlank(String value) {
        return value == null || value.trim().isEmpty();
    }
 
    private static class UsageCounter {
        private long promptTokens;
        private long completionTokens;
        private long totalTokens;
        private int llmCallCount;
 
        void add(ChatCompletionResponse.Usage usage) {
            llmCallCount++;
            if (usage == null) {
                return;
            }
            promptTokens += usage.getPromptTokens() == null ? 0L : usage.getPromptTokens();
            completionTokens += usage.getCompletionTokens() == null ? 0L : usage.getCompletionTokens();
            totalTokens += usage.getTotalTokens() == null ? 0L : usage.getTotalTokens();
        }
 
        long getPromptTokens() {
            return promptTokens;
        }
 
        long getCompletionTokens() {
            return completionTokens;
        }
 
        long getTotalTokens() {
            return totalTokens;
        }
 
        int getLlmCallCount() {
            return llmCallCount;
        }
    }
 
    private static class RunState {
        private int toolCallCount;
        private boolean snapshotCalled;
        private boolean toolError;
        private boolean applyRejected;
        private boolean actualApplyCalled;
        private boolean rollbackCalled;
        private int successCount;
        private int rejectCount;
        private final List<AutoTuneAgentService.McpCallResult> mcpCalls = new ArrayList<>();
 
        void markToolSuccess(String toolName) {
            toolCallCount++;
            if (TOOL_GET_SNAPSHOT.equals(toolName)) {
                snapshotCalled = true;
            }
        }
 
        void markToolError() {
            toolError = true;
        }
 
        void markApplyRejected() {
            applyRejected = true;
        }
 
        void markActualApply() {
            actualApplyCalled = true;
        }
 
        void markRollback() {
            rollbackCalled = true;
        }
 
        void addCounts(Object output) {
            if (output instanceof AutoTuneApplyResult) {
                AutoTuneApplyResult result = (AutoTuneApplyResult) output;
                successCount += safeCount(result.getSuccessCount());
                rejectCount += safeCount(result.getRejectCount());
                return;
            }
            if (output instanceof Map<?, ?>) {
                Map<?, ?> result = (Map<?, ?>) output;
                successCount += safeCount(result.get("successCount"));
                rejectCount += safeCount(result.get("rejectCount"));
            }
        }
 
        void addMcpCall(AutoTuneAgentService.McpCallResult mcpCall) {
            if (mcpCall == null) {
                return;
            }
            mcpCall.setCallSeq(mcpCalls.size() + 1);
            mcpCalls.add(mcpCall);
        }
 
        boolean isSuccessful() {
            return toolCallCount > 0 && snapshotCalled && !toolError && !applyRejected;
        }
 
        int getToolCallCount() {
            return toolCallCount;
        }
 
        int getMcpCallCount() {
            return mcpCalls.size();
        }
 
        boolean isSnapshotCalled() {
            return snapshotCalled;
        }
 
        boolean hasToolError() {
            return toolError;
        }
 
        boolean hasApplyRejected() {
            return applyRejected;
        }
 
        boolean isActualApplyCalled() {
            return actualApplyCalled;
        }
 
        boolean isRollbackCalled() {
            return rollbackCalled;
        }
 
        boolean hasActualMutation() {
            return actualApplyCalled || rollbackCalled;
        }
 
        int getSuccessCount() {
            return successCount;
        }
 
        int getRejectCount() {
            return rejectCount;
        }
 
        List<AutoTuneAgentService.McpCallResult> getMcpCalls() {
            return new ArrayList<>(mcpCalls);
        }
    }
}