package com.zy.ai.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.zy.ai.entity.AiPromptTemplate;
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import com.zy.ai.enums.AiPromptScene;
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import com.zy.ai.mapper.AiPromptTemplateMapper;
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import com.zy.ai.service.AiPromptTemplateService;
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import com.zy.ai.utils.AiPromptUtils;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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@Slf4j
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@Service("aiPromptTemplateService")
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@RequiredArgsConstructor
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public class AiPromptTemplateServiceImpl extends ServiceImpl<AiPromptTemplateMapper, AiPromptTemplate> implements AiPromptTemplateService {
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private final AiPromptUtils aiPromptUtils;
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@Override
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public AiPromptTemplate resolvePublished(String sceneCode) {
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AiPromptScene scene = requireScene(sceneCode);
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AiPromptTemplate prompt = findPublished(scene.getCode());
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if (prompt == null) {
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synchronized (("ai_prompt_scene_init_" + scene.getCode()).intern()) {
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prompt = findPublished(scene.getCode());
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if (prompt == null) {
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prompt = ensurePublishedScene(scene);
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}
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}
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}
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if (prompt == null) {
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throw new IllegalStateException("未找到已发布的 Prompt，sceneCode=" + scene.getCode());
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}
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return prompt;
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public AiPromptTemplate savePrompt(AiPromptTemplate template, Long operatorUserId) {
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if (template == null) {
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throw new IllegalArgumentException("Prompt 不能为空");
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}
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AiPromptScene scene = requireScene(template.getSceneCode());
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String content = template.getContent();
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if (content == null || content.trim().isEmpty()) {
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throw new IllegalArgumentException("Prompt 内容不能为空");
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}
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if (template.getId() == null) {
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AiPromptTemplate entity = new AiPromptTemplate();
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int version = nextVersion(scene.getCode());
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entity.setName(defaultName(scene, version, template.getName()));
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entity.setSceneCode(scene.getCode());
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entity.setVersion(version);
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entity.setContent(content);
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entity.setStatus(normalizeStatus(template.getStatus()));
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entity.setPublished((short) 0);
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entity.setCreatedBy(operatorUserId);
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entity.setMemo(trim(template.getMemo()));
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this.save(entity);
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return entity;
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}
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AiPromptTemplate db = this.getById(template.getId());
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if (db == null) {
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throw new IllegalArgumentException("Prompt 不存在");
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}
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if (!scene.getCode().equals(db.getSceneCode())) {
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throw new IllegalArgumentException("不允许修改 Prompt 所属场景");
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}
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if (Short.valueOf((short) 1).equals(db.getPublished())) {
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throw new IllegalArgumentException("已发布 Prompt 不允许直接修改，请新建版本后再发布");
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}
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db.setName(defaultName(scene, db.getVersion() == null ? 1 : db.getVersion(), template.getName()));
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db.setContent(content);
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db.setStatus(normalizeStatus(template.getStatus()));
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db.setMemo(trim(template.getMemo()));
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this.updateById(db);
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return db;
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public AiPromptTemplate publishPrompt(Long id, Long operatorUserId) {
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if (id == null) {
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throw new IllegalArgumentException("id 不能为空");
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}
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AiPromptTemplate db = this.getById(id);
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if (db == null) {
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throw new IllegalArgumentException("Prompt 不存在");
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}
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if (db.getContent() == null || db.getContent().trim().isEmpty()) {
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throw new IllegalArgumentException("Prompt 内容不能为空");
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}
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UpdateWrapper<AiPromptTemplate> clearWrapper = new UpdateWrapper<>();
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clearWrapper.eq("scene_code", db.getSceneCode()).set("published", 0);
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this.update(clearWrapper);
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db.setPublished((short) 1);
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db.setStatus((short) 1);
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db.setPublishedBy(operatorUserId);
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db.setPublishedTime(new Date());
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if (db.getVersion() == null || db.getVersion() <= 0) {
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db.setVersion(nextVersion(db.getSceneCode()));
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}
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if (db.getName() == null || db.getName().trim().isEmpty()) {
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AiPromptScene scene = requireScene(db.getSceneCode());
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db.setName(defaultName(scene, db.getVersion(), null));
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}
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this.updateById(db);
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return db;
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public boolean deletePrompt(Long id) {
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if (id == null) {
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return false;
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}
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AiPromptTemplate db = this.getById(id);
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if (db == null) {
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return false;
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}
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if (Short.valueOf((short) 1).equals(db.getPublished())) {
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throw new IllegalArgumentException("已发布 Prompt 不允许删除，请先发布其他版本");
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}
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return this.removeById(id);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int initDefaultsIfMissing() {
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int changed = 0;
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for (AiPromptScene scene : AiPromptScene.values()) {
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AiPromptTemplate prompt = findPublished(scene.getCode());
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if (prompt == null) {
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ensurePublishedScene(scene);
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changed++;
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}
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}
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return changed;
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}
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@Override
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public List<Map<String, Object>> listSupportedScenes() {
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List<Map<String, Object>> result = new ArrayList<>();
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for (AiPromptScene scene : AiPromptScene.values()) {
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HashMap<String, Object> item = new HashMap<>();
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item.put("code", scene.getCode());
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item.put("label", scene.getLabel());
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result.add(item);
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}
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return result;
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}
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private AiPromptTemplate ensurePublishedScene(AiPromptScene scene) {
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AiPromptTemplate latest = findLatest(scene.getCode());
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if (latest == null) {
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AiPromptTemplate seed = new AiPromptTemplate();
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seed.setName(defaultName(scene, 1, null));
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seed.setSceneCode(scene.getCode());
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seed.setVersion(1);
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seed.setContent(aiPromptUtils.getDefaultPrompt(scene.getCode()));
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seed.setStatus((short) 1);
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seed.setPublished((short) 1);
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seed.setPublishedTime(new Date());
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seed.setMemo("系统初始化默认 Prompt");
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this.save(seed);
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log.info("Initialized default AI prompt, sceneCode={}, version={}", scene.getCode(), seed.getVersion());
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return seed;
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}
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UpdateWrapper<AiPromptTemplate> clearWrapper = new UpdateWrapper<>();
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clearWrapper.eq("scene_code", scene.getCode()).set("published", 0);
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this.update(clearWrapper);
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latest.setStatus((short) 1);
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latest.setPublished((short) 1);
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if (latest.getPublishedTime() == null) {
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latest.setPublishedTime(new Date());
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}
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this.updateById(latest);
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return latest;
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}
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private AiPromptTemplate findPublished(String sceneCode) {
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QueryWrapper<AiPromptTemplate> wrapper = new QueryWrapper<>();
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wrapper.eq("scene_code", sceneCode)
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.eq("status", 1)
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.eq("published", 1)
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.orderByDesc("version")
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.orderByDesc("id")
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.last("limit 1");
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return this.getOne(wrapper, false);
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}
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private AiPromptTemplate findLatest(String sceneCode) {
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QueryWrapper<AiPromptTemplate> wrapper = new QueryWrapper<>();
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wrapper.eq("scene_code", sceneCode)
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.orderByDesc("version")
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.orderByDesc("id")
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.last("limit 1");
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return this.getOne(wrapper, false);
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}
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private int nextVersion(String sceneCode) {
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QueryWrapper<AiPromptTemplate> wrapper = new QueryWrapper<>();
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wrapper.eq("scene_code", sceneCode)
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.select("max(version) as version");
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Map<String, Object> row = this.getMap(wrapper);
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if (row == null || row.get("version") == null) {
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return 1;
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}
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Object value = row.get("version");
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if (value instanceof Number) {
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return ((Number) value).intValue() + 1;
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}
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return Integer.parseInt(String.valueOf(value)) + 1;
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}
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private Short normalizeStatus(Short status) {
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return status != null && status == 0 ? (short) 0 : (short) 1;
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}
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private String defaultName(AiPromptScene scene, Integer version, String name) {
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String value = trim(name);
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if (value != null && !value.isEmpty()) {
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return value;
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}
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return scene.getLabel() + " v" + version;
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}
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private AiPromptScene requireScene(String sceneCode) {
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String code = trim(sceneCode);
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AiPromptScene scene = AiPromptScene.ofCode(code);
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if (scene == null) {
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throw new IllegalArgumentException("不支持的 Prompt 场景: " + sceneCode);
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}
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return scene;
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}
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private String trim(String value) {
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if (value == null) {
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return null;
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}
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String trimmed = value.trim();
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return trimmed.isEmpty() ? null : trimmed;
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}
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}
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