package com.supervision.service.impl;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.io.IoUtil;
import cn.hutool.json.JSONUtil;
import com.supervision.exception.BusinessException;
import com.supervision.model.*;
import com.supervision.pojo.rasa.train.intent.DomainYmlTemplate;
import com.supervision.pojo.rasa.train.intent.Intent;
import com.supervision.pojo.rasa.train.intent.NluYmlTemplate;
import com.supervision.pojo.rasa.train.intent.RuleYmlTemplate;
import com.supervision.service.*;
import freemarker.template.Configuration;
import freemarker.template.Template;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintWriter;
import java.util.*;
import java.util.stream.Collectors;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

@Slf4j
@Service
@RequiredArgsConstructor
public class RasaServiceImpl implements RasaService {

    private final AskIntentService askIntentService;

    private final AskQuestionService askQuestionService;

    private final AskDefaultIntentService askDefaultIntentService;

    private final AskDefaultQuestionService askDefaultQuestionService;

    private final AskDefaultAnswerService askDefaultAnswerService;

    private final AskAnswerService askAnswerService;

    private final ConfigPhysicalToolService configPhysicalToolService;

    private final ConfigAncillaryItemService configAncillaryItemService;

    @Override
    public void generateRasaYml(String diseaseId) {

        Map<String, File> ymalFileMap = new HashMap<>();
        // 默认问答MAP
        Map<String, Intent> defaultIntentCodeAndIdMap = new HashMap<>();
        // 疾病对应的问答MAP
        Map<String, Intent> questionCodeAndIdMap = new HashMap<>();
        // 问诊工具MAP
        Map<String, ConfigPhysicalTool> toolCodeIdMap = new HashMap<>();
        // 辅助检查MAP
        Map<String, ConfigAncillaryItem> ancillaryCodeIdMap = new HashMap<>();

        List<RuleYmlTemplate.Rule> ruleList = new ArrayList<>();

        // 开始生成各种yaml文件
        generateNlu(diseaseId, defaultIntentCodeAndIdMap, questionCodeAndIdMap, toolCodeIdMap, ancillaryCodeIdMap, ymalFileMap);
        generateDomain(defaultIntentCodeAndIdMap, questionCodeAndIdMap, toolCodeIdMap, ancillaryCodeIdMap, ruleList, ymalFileMap);
        generateRule(ruleList, ymalFileMap);
        // 生成压缩文件
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        try (ZipOutputStream zipOutputStream = new ZipOutputStream(bos)) {
            for (Map.Entry<String, File> fileEntry : ymalFileMap.entrySet()) {
                zipOutputStream.putNextEntry(new ZipEntry(fileEntry.getKey()));
                IoUtil.copy(FileUtil.getInputStream(fileEntry.getValue()), zipOutputStream);
                zipOutputStream.closeEntry();
            }
            zipOutputStream.finish();
        } catch (Exception e) {
            log.error("生成ZIP文件失败", e);
            throw new BusinessException("生成ZIP文件失败");
        }
        // TODO 这是压缩文件的字节流,这里需要把自己流调用Python程序
        byte[] byteArray = bos.toByteArray();
        File file = new File("rasa.zip");
        IoUtil.copy(new ByteArrayInputStream(byteArray),FileUtil.getOutputStream(file));
    }

    private void generateNlu(String diseaseId, Map<String, Intent> defaultIntentCodeAndIdMap,
                             Map<String, Intent> intentCodeAndIdMap,
                             Map<String, ConfigPhysicalTool> toolCodeIdMap,
                             Map<String, ConfigAncillaryItem> itemCodeIdMap,
                             Map<String, File> ymalFileMap) {
        // 首先生成根据意图查找到nlu文件
        List<NluYmlTemplate.Nlu> nluList = new ArrayList<>();
        // 默认意图
        List<AskDefaultIntent> defaultIntentList = askDefaultIntentService.list();
        // 根据默认意图找到所有的问题
        if (CollUtil.isNotEmpty(defaultIntentList)) {
            Set<String> defaultIntentIdSet = defaultIntentList.stream().map(AskDefaultIntent::getId).collect(Collectors.toSet());
            // 去默认问题表找问题
            List<AskDefaultQuestion> questionList = askDefaultQuestionService.lambdaQuery().in(AskDefaultQuestion::getDefaultIntentId, defaultIntentIdSet).list();
            Map<String, List<AskDefaultQuestion>> defaultQuestionByDefaultIntentId = questionList.stream().collect(Collectors.groupingBy(AskDefaultQuestion::getDefaultIntentId));
            // 生成nlu的节点
            for (AskDefaultIntent askDefaultIntent : defaultIntentList) {
                List<AskDefaultQuestion> questions = defaultQuestionByDefaultIntentId.get(askDefaultIntent.getId());
                if (CollUtil.isNotEmpty(questions)) {
                    // 开始生成
                    NluYmlTemplate.Nlu nlu = new NluYmlTemplate.Nlu();
                    nlu.setIntent(askDefaultIntent.getCode());
                    // 注意,这里的格式应该是 "- 你好\n- 你好啊\n- 你好你好" 这种的格式,所以我们要拼接
                    nlu.setExamples(questions.stream().map(AskDefaultQuestion::getQuestion).collect(Collectors.toList()));
                    nluList.add(nlu);
                    // 添加到map中,key为意图编码,value为意图ID
                    defaultIntentCodeAndIdMap.put(askDefaultIntent.getCode(), new Intent(askDefaultIntent.getId(), askDefaultIntent.getCode(), askDefaultIntent.getDescription()));
                }
            }
        }
        // 然后处理该疾病对应的意图
        List<AskIntent> askIntentList = askIntentService.lambdaQuery().eq(AskIntent::getDiseaseId, diseaseId).list();
        // 根据默认意图找到所有的问题
        if (CollUtil.isNotEmpty(askIntentList)) {
            Set<String> askIntentListSet = askIntentList.stream().map(AskIntent::getId).collect(Collectors.toSet());
            // 去默认问题表找问题
            List<AskQuestion> questionList = askQuestionService.lambdaQuery().in(AskQuestion::getIntentId, askIntentListSet).list();
            Map<String, List<AskQuestion>> questionByDefaultIntentId = questionList.stream().collect(Collectors.groupingBy(AskQuestion::getIntentId));
            // 生成nlu的节点
            for (AskIntent askIntent : askIntentList) {
                List<AskQuestion> questions = questionByDefaultIntentId.get(askIntent.getId());
                if (CollUtil.isNotEmpty(questions)) {
                    // 开始生成
                    NluYmlTemplate.Nlu nlu = new NluYmlTemplate.Nlu();
                    nlu.setIntent(askIntent.getCode());
                    nlu.setExamples(questions.stream().map(AskQuestion::getQuestion).collect(Collectors.toList()));
                    nluList.add(nlu);
                    // 添加到map中,key为意图编码,value为意图ID
                    intentCodeAndIdMap.put(askIntent.getCode(), new Intent(askIntent.getId(), askIntent.getCode(), askIntent.getDescription()));
                }
            }
        }
        // 这里处理呼出的问题(code和问题不能为空)
        List<ConfigPhysicalTool> physicalToolList = configPhysicalToolService.lambdaQuery()
                .isNotNull(ConfigPhysicalTool::getCode)
                .isNotNull(ConfigPhysicalTool::getCallOutQuestion).list();

        for (ConfigPhysicalTool tool : physicalToolList) {
            // 把呼出的问题全部加进去
            NluYmlTemplate.Nlu nlu = new NluYmlTemplate.Nlu();
            String toolIntent = "tool_" + tool.getCode();
            nlu.setIntent(toolIntent);
            nlu.setExamples(tool.getCallOutQuestion());
            nluList.add(nlu);
            // 生成tool的map,key是code,value是工具对应的ID
            toolCodeIdMap.put(toolIntent, tool);
        }
        // 生成呼出的辅助检查
        List<ConfigAncillaryItem> ancillaryItemList = configAncillaryItemService.lambdaQuery()
                .isNotNull(ConfigAncillaryItem::getCode)
                .isNotNull(ConfigAncillaryItem::getCallOutQuestion).list();

        for (ConfigAncillaryItem ancillary : ancillaryItemList) {
            // 把呼出的问题全部加进去
            NluYmlTemplate.Nlu nlu = new NluYmlTemplate.Nlu();
            String itemIntent = "ancillary_" + ancillary.getCode();
            nlu.setIntent(itemIntent);
            nlu.setExamples(ancillary.getCallOutQuestion());
            nluList.add(nlu);
            // 生成tool的map,key是item,value是工具对应的ID
            itemCodeIdMap.put(itemIntent, ancillary);
        }

        // 生成后生成yml对象

//        createYmlFile(nluYml, "nlu.yml");
        // 加载模板配置
        NluYmlTemplate nluYmlTemplate = new NluYmlTemplate();
        nluYmlTemplate.setNlu(nluList);
        createYmlFile(NluYmlTemplate.class, "nlu.ftl", nluYmlTemplate, "nlu.yml", ymalFileMap);

    }


    public void generateDomain(Map<String, Intent> defaultQuestionCodeAndIdMap,
                               Map<String, Intent> questionCodeAndIdMap,
                               Map<String, ConfigPhysicalTool> toolCodeIdMap,
                               Map<String, ConfigAncillaryItem> ancillaryCodeIdMap,
                               List<RuleYmlTemplate.Rule> ruleList, Map<String, File> ymalFileMap) {
        LinkedHashMap<String, List<String>> responses = new LinkedHashMap<>();
        // 首先根据默认意图找到所有的意图ID
        Collection<Intent> defaultIntentIdColl = defaultQuestionCodeAndIdMap.values();
        // 找到默认意图对应的回复
        if (CollUtil.isNotEmpty(defaultIntentIdColl)) {
            Set<String> defaultIntentIdSet = defaultIntentIdColl.stream().map(Intent::getId).collect(Collectors.toSet());
            List<AskDefaultAnswer> defaultAnswerList = askDefaultAnswerService.lambdaQuery().in(AskDefaultAnswer::getDefaultIntentId, defaultIntentIdSet).list();
            Map<String, String> answerMap = defaultAnswerList.stream().collect(Collectors.toMap(AskDefaultAnswer::getId, AskDefaultAnswer::getAnswer, (k1, k2) -> k1));
            for (Map.Entry<String, Intent> entry : defaultQuestionCodeAndIdMap.entrySet()) {
                String defaultIntentCode = entry.getKey();
                Intent defaultIntent = entry.getValue();
                String answer = answerMap.get(defaultIntent.getId());
                String utter = "utter_" + defaultIntentCode;
                responses.put(utter, CollUtil.newArrayList(answer));
                ruleList.add(new RuleYmlTemplate.Rule(defaultIntent.getDesc(), defaultIntent.getCode(), utter));
            }
        }
        // 然后疾病意图对应的回复
        Collection<Intent> intentIdColl = questionCodeAndIdMap.values();
        if (CollUtil.isNotEmpty(intentIdColl)) {
            Set<String> intentIdSet = intentIdColl.stream().map(Intent::getId).collect(Collectors.toSet());
            List<AskAnswer> answerList = askAnswerService.lambdaQuery().in(AskAnswer::getIntentId, intentIdSet).list();
            Map<String, String> answerMap = answerList.stream().collect(Collectors.toMap(AskAnswer::getId, AskAnswer::getAnswer, (k1, k2) -> k1));
            for (Map.Entry<String, Intent> entry : questionCodeAndIdMap.entrySet()) {
                String intentCode = entry.getKey();
                Intent intent = entry.getValue();
                String answer = answerMap.get(intent.getId());
                String utter = "utter_" + intentCode;
                responses.put(utter, CollUtil.newArrayList(answer));
                ruleList.add(new RuleYmlTemplate.Rule(intent.getDesc(), intent.getCode(), utter));
            }
        }
        // 生成呼出tool对应的回复
        for (Map.Entry<String, ConfigPhysicalTool> entry : toolCodeIdMap.entrySet()) {
            String intentCode = entry.getKey();
            ConfigPhysicalTool tool = entry.getValue();
            String utter = "utter_" + intentCode;
            String answer = "---tool---" + tool.getId();
            responses.put(utter, CollUtil.newArrayList(JSONUtil.toJsonStr(answer)));
            ruleList.add(new RuleYmlTemplate.Rule(tool.getToolName(), intentCode, utter));
        }
        // 然后呼出辅助检查对应的回复
        for (Map.Entry<String, ConfigAncillaryItem> entry : ancillaryCodeIdMap.entrySet()) {
            String intentCode = entry.getKey();
            ConfigAncillaryItem ancillary = entry.getValue();
            String utter = "utter_" + intentCode;
            String answer = "---ancillary---" + ancillary.getId();
            responses.put(utter, CollUtil.newArrayList(JSONUtil.toJsonStr(answer)));
            ruleList.add(new RuleYmlTemplate.Rule(ancillary.getItemName(), intentCode, utter));
        }


        DomainYmlTemplate domainYmlTemplate = new DomainYmlTemplate();
        // 意图
        List<String> intentList = new ArrayList<>();
        intentList.addAll(defaultQuestionCodeAndIdMap.keySet());
        intentList.addAll(questionCodeAndIdMap.keySet());
        domainYmlTemplate.setIntents(intentList);
        // 回复
        domainYmlTemplate.setResponses(responses);
        // action
        List<String> actionList = new ArrayList<>(responses.keySet());
        domainYmlTemplate.setActions(actionList);
        // 生成yml文件
        createYmlFile(DomainYmlTemplate.class, "domain.ftl", domainYmlTemplate, "domain.yml", ymalFileMap);
    }

    /**
     * 生成rule
     */
    public void generateRule(List<RuleYmlTemplate.Rule> ruleList, Map<String, File> ymalFileMap) {
        RuleYmlTemplate ruleYmlTemplate = new RuleYmlTemplate();
        ruleYmlTemplate.setRules(ruleList);
        // 生成yml文件
        createYmlFile(RuleYmlTemplate.class, "rules.ftl", ruleYmlTemplate, "rules.yml", ymalFileMap);
    }

    private void createYmlFile(Class<?> clazz, String ftlName, Object data, String ymlName, Map<String, File> ymalFileMap) {
        try {
            // 这个版本和maven依赖的版本一致
            Configuration configuration = new Configuration(Configuration.VERSION_2_3_31);
            configuration.setClassForTemplateLoading(clazz, "/templates"); // 模板文件的所在目录
            // 获取模板
            Template template = configuration.getTemplate(ftlName);
            File tempFile = FileUtil.createTempFile();
            // 创建输出文件
            try (PrintWriter out = new PrintWriter(tempFile);) {
                // 填充并生成输出
                template.process(data, out);
            } catch (Exception e) {
                log.error("文件生成失败");
            }
            ymalFileMap.put(ymlName, tempFile);
        } catch (Exception e) {
            log.error("导出模板失败", e);
        }


    }
}