package org.ruoyi.generator.util;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.lang.Dict;
import cn.hutool.core.util.ObjectUtil;
import org.ruoyi.generator.constant.GenConstants;
import org.ruoyi.generator.domain.GenTable;
import org.ruoyi.generator.domain.GenTableColumn;
import org.ruoyi.common.core.utils.DateUtils;
import org.ruoyi.common.core.utils.StringUtils;
import org.ruoyi.common.json.utils.JsonUtils;
import org.ruoyi.helper.DataBaseHelper;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.apache.velocity.VelocityContext;

import java.util.*;

/**
 * 模板处理工具类
 *
 * @author ruoyi
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class VelocityUtils {

  /**
   * 项目空间路径
   */
  private static final String PROJECT_PATH = "main/java";

  /**
   * mybatis空间路径
   */
  private static final String MYBATIS_PATH = "main/resources/mapper";

  /**
   * 默认上级菜单，系统工具
   */
  private static final String DEFAULT_PARENT_MENU_ID = "3";

  /**
   * 设置模板变量信息
   *
   * @return 模板列表
   */
  public static VelocityContext prepareContext(GenTable genTable) {
    String moduleName = genTable.getModuleName();
    String businessName = genTable.getBusinessName();
    String packageName = genTable.getPackageName();
    String tplCategory = genTable.getTplCategory();
    String functionName = genTable.getFunctionName();

    VelocityContext velocityContext = new VelocityContext();
    velocityContext.put("tplCategory", genTable.getTplCategory());
    velocityContext.put("tableName", genTable.getTableName());
    velocityContext.put("functionName", StringUtils.isNotEmpty(functionName) ? functionName : "【请填写功能名称】");
    velocityContext.put("ClassName", genTable.getClassName());
    velocityContext.put("className", StringUtils.uncapitalize(genTable.getClassName()));
    velocityContext.put("moduleName", genTable.getModuleName());
    velocityContext.put("BusinessName", StringUtils.capitalize(genTable.getBusinessName()));
    velocityContext.put("businessName", genTable.getBusinessName());
    velocityContext.put("basePackage", getPackagePrefix(packageName));
    velocityContext.put("packageName", packageName);
    velocityContext.put("author", genTable.getFunctionAuthor());
    velocityContext.put("datetime", DateUtils.getDate());
    velocityContext.put("pkColumn", genTable.getPkColumn());
    velocityContext.put("importList", getImportList(genTable));
    velocityContext.put("permissionPrefix", getPermissionPrefix(moduleName, businessName));
    velocityContext.put("columns", genTable.getColumns());
    velocityContext.put("table", genTable);
    velocityContext.put("dicts", getDicts(genTable));
    setMenuVelocityContext(velocityContext, genTable);
    if (GenConstants.TPL_TREE.equals(tplCategory)) {
      setTreeVelocityContext(velocityContext, genTable);
    }
    // 判断是modal还是drawer
    Dict paramsObj = JsonUtils.parseMap(genTable.getOptions());
    if (ObjectUtil.isNotNull(paramsObj)) {
      String popupComponent = Optional
          .ofNullable(paramsObj.getStr("popupComponent"))
          .orElse("modal");
      velocityContext.put("popupComponent", popupComponent);
      velocityContext.put("PopupComponent", StringUtils.capitalize(popupComponent));
    } else {
      velocityContext.put("popupComponent", "modal");
      velocityContext.put("PopupComponent", "Modal");
    }
    // 判断是原生antd表单还是useForm表单
    // native 原生antd表单
    // useForm useVbenForm
    if (ObjectUtil.isNotNull(paramsObj)) {
      String formComponent = Optional
          .ofNullable(paramsObj.getStr("formComponent"))
          .orElse("useForm");
      velocityContext.put("formComponent", formComponent);
    }
    return velocityContext;
  }

  public static void setMenuVelocityContext(VelocityContext context, GenTable genTable) {
    String options = genTable.getOptions();
    Dict paramsObj = JsonUtils.parseMap(options);
    String parentMenuId = getParentMenuId(paramsObj);
    context.put("parentMenuId", parentMenuId);
  }

  public static void setTreeVelocityContext(VelocityContext context, GenTable genTable) {
    String options = genTable.getOptions();
    Dict paramsObj = JsonUtils.parseMap(options);
    String treeCode = getTreecode(paramsObj);
    String treeParentCode = getTreeParentCode(paramsObj);
    String treeName = getTreeName(paramsObj);

    context.put("treeCode", treeCode);
    context.put("treeParentCode", treeParentCode);
    context.put("treeName", treeName);
    context.put("expandColumn", getExpandColumn(genTable));
    if (paramsObj.containsKey(GenConstants.TREE_PARENT_CODE)) {
      context.put("tree_parent_code", paramsObj.get(GenConstants.TREE_PARENT_CODE));
    }
    if (paramsObj.containsKey(GenConstants.TREE_NAME)) {
      context.put("tree_name", paramsObj.get(GenConstants.TREE_NAME));
    }
  }

  /**
   * 获取模板信息
   *
   * @return 模板列表
   */
  public static List<String> getTemplateList(String tplCategory) {
    List<String> templates = new ArrayList<>();
    templates.add("vm/java/domain.java.vm");
    templates.add("vm/java/vo.java.vm");
    templates.add("vm/java/bo.java.vm");
    templates.add("vm/java/mapper.java.vm");
    templates.add("vm/java/service.java.vm");
    templates.add("vm/java/serviceImpl.java.vm");
    templates.add("vm/java/controller.java.vm");
    templates.add("vm/xml/mapper.xml.vm");
    if (DataBaseHelper.isOracle()) {
      templates.add("vm/sql/oracle/sql.vm");
    } else if (DataBaseHelper.isPostgerSql()) {
      templates.add("vm/sql/postgres/sql.vm");
    } else if (DataBaseHelper.isSqlServer()) {
      templates.add("vm/sql/sqlserver/sql.vm");
    } else {
      templates.add("vm/sql/sql.vm");
    }
    templates.add("vm/ts/api.ts.vm");
    templates.add("vm/ts/types.ts.vm");
    if (GenConstants.TPL_CRUD.equals(tplCategory)) {
      templates.add("vm/vue/index.vue.vm");
    } else if (GenConstants.TPL_TREE.equals(tplCategory)) {
      templates.add("vm/vue/index-tree.vue.vm");
    }

    /**
     * 添加vben5
     */
    templates.add("vm/vben5/api/index.ts.vm");
    templates.add("vm/vben5/api/model.d.ts.vm");
    templates.add("vm/vben5/views/data.ts.vm");
    if (GenConstants.TPL_CRUD.equals(tplCategory)) {
      templates.add("vm/vben5/views/index_vben.vue.vm");
      templates.add("vm/vben5/views/popup.vue.vm");
    } else if (GenConstants.TPL_TREE.equals(tplCategory)) {
      templates.add("vm/vben5/views/index_vben_tree.vue.vm");
      templates.add("vm/vben5/views/popup_tree.vue.vm");
    }

    return templates;
  }

  /**
   * 获取文件名
   */
  public static String getFileName(String template, GenTable genTable) {
    // 文件名称
    String fileName = "";
    // 包路径
    String packageName = genTable.getPackageName();
    // 模块名
    String moduleName = genTable.getModuleName();
    // 大写类名
    String className = genTable.getClassName();
    // 业务名称
    String businessName = genTable.getBusinessName();

    String javaPath = PROJECT_PATH + "/" + StringUtils.replace(packageName, ".", "/");
    String mybatisPath = MYBATIS_PATH + "/" + moduleName;
    String vuePath = "vue";

    if (template.contains("domain.java.vm")) {
      fileName = StringUtils.format("{}/domain/{}.java", javaPath, className);
    }
    if (template.contains("vo.java.vm")) {
      fileName = StringUtils.format("{}/domain/vo/{}Vo.java", javaPath, className);
    }
    if (template.contains("bo.java.vm")) {
      fileName = StringUtils.format("{}/domain/bo/{}Bo.java", javaPath, className);
    }
    if (template.contains("mapper.java.vm")) {
      fileName = StringUtils.format("{}/mapper/{}Mapper.java", javaPath, className);
    } else if (template.contains("service.java.vm")) {
      fileName = StringUtils.format("{}/service/I{}Service.java", javaPath, className);
    } else if (template.contains("serviceImpl.java.vm")) {
      fileName = StringUtils.format("{}/service/impl/{}ServiceImpl.java", javaPath, className);
    } else if (template.contains("controller.java.vm")) {
      fileName = StringUtils.format("{}/controller/{}Controller.java", javaPath, className);
    } else if (template.contains("mapper.xml.vm")) {
      fileName = StringUtils.format("{}/{}Mapper.xml", mybatisPath, className);
    } else if (template.contains("sql.vm")) {
      fileName = businessName + "Menu.sql";
    } else if (template.contains("api.ts.vm")) {
      fileName = StringUtils.format("{}/api/{}/{}/index.ts", vuePath, moduleName, businessName);
    } else if (template.contains("types.ts.vm")) {
      fileName = StringUtils.format("{}/api/{}/{}/types.ts", vuePath, moduleName, businessName);
    } else if (template.contains("index.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/index.vue", vuePath, moduleName, businessName);
    } else if (template.contains("index-tree.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/index.vue", vuePath, moduleName, businessName);
    }

    // 判断是modal还是drawer
    Dict paramsObj = JsonUtils.parseMap(genTable.getOptions());
    String popupComponent = "modal";
    if (ObjectUtil.isNotNull(paramsObj)) {
      popupComponent = Optional
          .ofNullable(paramsObj.getStr("popupComponent"))
          .orElse("modal");
    }
    String vben5Path = "vben5";
    if (template.contains("vm/vben5/api/index.ts.vm")) {
      fileName = StringUtils.format("{}/api/{}/{}/index.ts", vben5Path, moduleName, businessName);
    }
    if (template.contains("vm/vben5/api/model.d.ts.vm")) {
      fileName = StringUtils.format("{}/api/{}/{}/model.d.ts", vben5Path, moduleName, businessName);
    }
    if (template.contains("vm/vben5/views/index_vben.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/index.vue", vben5Path, moduleName, businessName);
    }
    if (template.contains("vm/vben5/views/index_vben_tree.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/index.vue", vben5Path, moduleName, businessName);
    }
    if (template.contains("vm/vben5/views/data.ts.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/data.ts", vben5Path, moduleName, businessName);
    }
    if (template.contains("vm/vben5/views/popup.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/{}-{}.vue", vben5Path, moduleName, businessName, businessName, popupComponent);
    }
    if (template.contains("vm/vben5/views/popup_tree.vue.vm")) {
      fileName = StringUtils.format("{}/views/{}/{}/{}-{}.vue", vben5Path, moduleName, businessName, businessName, popupComponent);
    }

    return fileName;
  }

  /**
   * 获取包前缀
   *
   * @param packageName 包名称
   * @return 包前缀名称
   */
  public static String getPackagePrefix(String packageName) {
    int lastIndex = packageName.lastIndexOf(".");
    return StringUtils.substring(packageName, 0, lastIndex);
  }

  /**
   * 根据列类型获取导入包
   *
   * @param genTable 业务表对象
   * @return 返回需要导入的包列表
   */
  public static HashSet<String> getImportList(GenTable genTable) {
    List<GenTableColumn> columns = genTable.getColumns();
    HashSet<String> importList = new HashSet<>();
    for (GenTableColumn column : columns) {
      if (!column.isSuperColumn() && GenConstants.TYPE_DATE.equals(column.getJavaType())) {
        importList.add("java.util.Date");
        importList.add("com.fasterxml.jackson.annotation.JsonFormat");
      } else if (!column.isSuperColumn() && GenConstants.TYPE_BIGDECIMAL.equals(column.getJavaType())) {
        importList.add("java.math.BigDecimal");
      } else if (!column.isSuperColumn() && "imageUpload".equals(column.getHtmlType())) {
        importList.add("org.ruoyi.common.translation.annotation.Translation");
        importList.add("org.ruoyi.common.translation.constant.TransConstant");
      }
    }
    return importList;
  }

  /**
   * 根据列类型获取字典组
   *
   * @param genTable 业务表对象
   * @return 返回字典组
   */
  public static String getDicts(GenTable genTable) {
    List<GenTableColumn> columns = genTable.getColumns();
    Set<String> dicts = new HashSet<>();
    addDicts(dicts, columns);
    return StringUtils.join(dicts, ", ");
  }

  /**
   * 添加字典列表
   *
   * @param dicts 字典列表
   * @param columns 列集合
   */
  public static void addDicts(Set<String> dicts, List<GenTableColumn> columns) {
    for (GenTableColumn column : columns) {
      if (!column.isSuperColumn() && StringUtils.isNotEmpty(column.getDictType()) && StringUtils.equalsAny(
          column.getHtmlType(),
          new String[] { GenConstants.HTML_SELECT, GenConstants.HTML_RADIO, GenConstants.HTML_CHECKBOX })) {
        dicts.add("'" + column.getDictType() + "'");
      }
    }
  }

  /**
   * 获取权限前缀
   *
   * @param moduleName   模块名称
   * @param businessName 业务名称
   * @return 返回权限前缀
   */
  public static String getPermissionPrefix(String moduleName, String businessName) {
    return StringUtils.format("{}:{}", moduleName, businessName);
  }

  /**
   * 获取上级菜单ID字段
   *
   * @param paramsObj 生成其他选项
   * @return 上级菜单ID字段
   */
  public static String getParentMenuId(Dict paramsObj) {
    if (CollUtil.isNotEmpty(paramsObj) && paramsObj.containsKey(GenConstants.PARENT_MENU_ID)
        && StringUtils.isNotEmpty(paramsObj.getStr(GenConstants.PARENT_MENU_ID))) {
      return paramsObj.getStr(GenConstants.PARENT_MENU_ID);
    }
    return DEFAULT_PARENT_MENU_ID;
  }

  /**
   * 获取树编码
   *
   * @param paramsObj 生成其他选项
   * @return 树编码
   */
  public static String getTreecode(Map<String, Object> paramsObj) {
    if (CollUtil.isNotEmpty(paramsObj) && paramsObj.containsKey(GenConstants.TREE_CODE)) {
      return StringUtils.toCamelCase(Convert.toStr(paramsObj.get(GenConstants.TREE_CODE)));
    }
    return StringUtils.EMPTY;
  }

  /**
   * 获取树父编码
   *
   * @param paramsObj 生成其他选项
   * @return 树父编码
   */
  public static String getTreeParentCode(Dict paramsObj) {
    if (CollUtil.isNotEmpty(paramsObj) && paramsObj.containsKey(GenConstants.TREE_PARENT_CODE)) {
      return StringUtils.toCamelCase(paramsObj.getStr(GenConstants.TREE_PARENT_CODE));
    }
    return StringUtils.EMPTY;
  }

  /**
   * 获取树名称
   *
   * @param paramsObj 生成其他选项
   * @return 树名称
   */
  public static String getTreeName(Dict paramsObj) {
    if (CollUtil.isNotEmpty(paramsObj) && paramsObj.containsKey(GenConstants.TREE_NAME)) {
      return StringUtils.toCamelCase(paramsObj.getStr(GenConstants.TREE_NAME));
    }
    return StringUtils.EMPTY;
  }

  /**
   * 获取需要在哪一列上面显示展开按钮
   *
   * @param genTable 业务表对象
   * @return 展开按钮列序号
   */
  public static int getExpandColumn(GenTable genTable) {
    String options = genTable.getOptions();
    Dict paramsObj = JsonUtils.parseMap(options);
    String treeName = paramsObj.getStr(GenConstants.TREE_NAME);
    int num = 0;
    for (GenTableColumn column : genTable.getColumns()) {
      if (column.isList()) {
        num++;
        String columnName = column.getColumnName();
        if (columnName.equals(treeName)) {
          break;
        }
      }
    }
    return num;
  }
}