package org.yeshi.utils.generater.vo.service;

import org.yeshi.utils.StringUtil;
import org.yeshi.utils.bean.BeanUtil;
import org.yeshi.utils.generater.entity.BaseData;
import org.yeshi.utils.generater.entity.ClassInfo;
import org.yeshi.utils.generater.util.EntityUtil;

import javax.annotation.Resource;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class ServiceInfoVO extends BaseData {
    private List<String> importList;
    private ClassInfo service;
    //方法列表
    private List<ServiceMetodInfoVO> metodInfoList;
    private ClassInfo query;;


    public static class Builder {
        private Class entity;
        private String packageName;
        private ClassInfo service;
        private ClassInfo query;
        private ClassInfo exception;



        public Builder setEntity(Class entity) {
            this.entity = entity;
            return this;
        }

        public Builder setPackageName(String packageName) {
            this.packageName = packageName;
            return this;
        }

        public Builder setService(ClassInfo service) {
            this.service = service;
            return this;
        }

        public Builder setQuery(ClassInfo query) {
            this.query = query;
            return this;
        }

        public Builder setException(ClassInfo exception) {
            this.exception = exception;
            return this;
        }


        private String getRemarksLine(String content) {
            return "\t * " + content + "\n";
        }

        //获取方法的注释
        private String getMethodRemarks(String type) {
            StringBuilder builder = new StringBuilder();
            builder.append("/**\n");
            switch (type) {
                case "list":
                    builder.append(getRemarksLine("获取列表"));
                    builder.append(getRemarksLine("@param " + StringUtil.firstCharToLower(query.getName())));
                    builder.append(getRemarksLine("@param page"));
                    builder.append(getRemarksLine("@param pageSize"));
                    builder.append(getRemarksLine("@return"));
                    break;
                default:
                    builder.append(getRemarksLine(""));
            }

            builder.append("\t */");
            return builder.toString();
        }

        private void validParams() throws Exception {
            if (entity == null) {
                throw new Exception("entity不能为空");
            }
            if (packageName == null) {
                throw new Exception("packageName不能为空");
            }
            if (service == null) {
                throw new Exception("service不能为空");
            }
            if (query == null) {
                throw new Exception("query不能为空");
            }

        }


        public ServiceInfoVO build() throws Exception {
            validParams();
            Field identifyId = EntityUtil.getIdentifyId(entity);
            if (identifyId == null) {
                throw new Exception("尚未找到主键属性");
            }
            ServiceInfoVO serviceData = new ServiceInfoVO();
            serviceData.setService(service);
            serviceData.setEntity(new ClassInfo(entity.getSimpleName(), entity.getName()));
            serviceData.setPackageName(packageName);
            serviceData.setQuery(query);
            //设置接口
            List<ServiceMetodInfoVO> metodInfoVOList = new ArrayList<>();
            List<String> importList = new ArrayList<>();
            /*******添加方法开始*******/
            List<String> params = null;
            ServiceMetodInfoVO metodInfo = null;
            //list方法
            params = new ArrayList<>();
            params.add(query.getName() + " " + StringUtil.firstCharToLower(query.getName()));
            params.add(" int page");
            params.add(" int pageSize");
            metodInfo = new ServiceMetodInfoVO("public", String.format("List<%s>", serviceData.getEntity().getName()), "list", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("list"));

            metodInfoVOList.add(metodInfo);
            //count方法
            params = new ArrayList<>();
            params.add(query.getName() + " " + StringUtil.firstCharToLower(query.getName()));
            metodInfo = new ServiceMetodInfoVO("public", "long", "count", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("count"));
            metodInfoVOList.add(metodInfo);
            //get方法
            params = new ArrayList<>();
            params.add(identifyId.getType().getSimpleName() + " id");
            metodInfo = new ServiceMetodInfoVO("public", serviceData.getEntity().getName(), "get", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("get"));

            metodInfoVOList.add(metodInfo);
            //add方法
            params = new ArrayList<>();
            params.add(serviceData.getEntity().getName() + " " + StringUtil.firstCharToLower(serviceData.getEntity().getName()));
            metodInfo = new ServiceMetodInfoVO("public", "void", "add", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("add"));
            if (exception != null) {
                metodInfo.setExceptions(exception.getName());
                importList.add(exception.getClazz());
            } else {
                metodInfo.setExceptions("Exception");
                importList.add(Exception.class.getName());
            }
            metodInfoVOList.add(metodInfo);
            //update方法
            params = new ArrayList<>();
            params.add(serviceData.getEntity().getName() + " " + StringUtil.firstCharToLower(serviceData.getEntity().getName()));
            metodInfo = new ServiceMetodInfoVO("public", "void", "update", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("update"));
            metodInfoVOList.add(metodInfo);
            //delete方法
            params = new ArrayList<>();
            params.add(String.format("List<%s> idList", identifyId.getType().getSimpleName()));
            metodInfo = new ServiceMetodInfoVO("public", String.format("void", serviceData.getEntity().getName()), "delete", StringUtil.concat(params, ","));
            metodInfo.setNote(getMethodRemarks("delete"));
            metodInfoVOList.add(metodInfo);

            /*******添加方法结束*******/
            serviceData.setMetodInfoList(metodInfoVOList);


            importList.add(Resource.class.getName());
            importList.add(Date.class.getName());
            importList.add(BeanUtil.class.getName());
            importList.add(List.class.getName());
            importList.add(entity.getName());
            importList.add(service.getClazz());
            importList.add(query.getClazz());

            serviceData.setImportList(importList);

            return serviceData;
        }

    }

    public ClassInfo getService() {
        return service;
    }

    public void setService(ClassInfo service) {
        this.service = service;
    }

    public List<ServiceMetodInfoVO> getMetodInfoList() {
        return metodInfoList;
    }

    public void setMetodInfoList(List<ServiceMetodInfoVO> metodInfoList) {
        this.metodInfoList = metodInfoList;
    }

    public ClassInfo getQuery() {
        return query;
    }

    public void setQuery(ClassInfo query) {
        this.query = query;
    }

    public List<String> getImportList() {
        return importList;
    }

    public void setImportList(List<String> importList) {
        this.importList = importList;
    }

}