package com.ruoyi.web.controller.api;


import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.ExcelImportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.ImportParams;
import cn.hutool.json.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.basic.PageInfo;
import com.ruoyi.common.core.domain.BasePage;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.common.utils.WebUtils;
import com.ruoyi.framework.web.service.TokenService;
import com.ruoyi.system.export.MerchantImport;
import com.ruoyi.system.export.OldsterImport;
import com.ruoyi.system.model.TMerchant;
import com.ruoyi.system.model.TMerchantType;
import com.ruoyi.system.model.TOldster;
import com.ruoyi.system.query.TMerchantQuery;
import com.ruoyi.system.service.TMerchantService;
import com.ruoyi.system.service.TMerchantTypeService;
import com.ruoyi.system.vo.TMerchantVO;
import com.ruoyi.web.controller.tool.ExcelUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * <p>
 * 商户信息 前端控制器
 * </p>
 *
 * @author xiaochen
 * @since 2025-11-06
 */
@Slf4j
@Api(tags = "商户信息管理")
@RestController
@RequestMapping("/t-merchant")
public class TMerchantController {

    private final TMerchantTypeService merchantTypeService;
    private final TMerchantService merchantService;
    private final TokenService tokenService;
    @Autowired
    public TMerchantController(TMerchantTypeService merchantTypeService, TMerchantService merchantService, TokenService tokenService) {
        this.merchantTypeService = merchantTypeService;
        this.merchantService = merchantService;
        this.tokenService = tokenService;
    }

    /**
     * 获取商户信息管理管理列表
     */
    @ApiOperation(value = "获取商户信息管理分页列表")
    @PostMapping(value = "/pageList")
    public R<PageInfo<TMerchantVO>> pageList(@RequestBody TMerchantQuery query) {
        return R.ok(merchantService.pageList(query));
    }

    /**
     * 获取商户信息管理管理列表
     */
    @ApiOperation(value = "获取商户信息管理列表")
    @PostMapping(value = "/list")
    public R<List<TMerchant>> list() {
        return R.ok(merchantService.list(Wrappers.lambdaQuery(TMerchant.class).orderByDesc(TMerchant::getCreateTime)));
    }

    /**
     * 添加商户信息管理管理
     */
    @Log(title = "商户信息管理信息-新增商户信息管理", businessType = BusinessType.INSERT)
    @ApiOperation(value = "添加商户信息管理")
    @PostMapping(value = "/add")
    public R<Boolean> add(@Validated @RequestBody TMerchant dto) {
        if (merchantService.isExit(dto)) {
            return R.fail("商户名称已存在");
        }
        return R.ok(merchantService.save(dto));
    }

    /**
     * 修改商户信息管理
     */
    @Log(title = "商户信息管理信息-修改商户信息管理", businessType = BusinessType.UPDATE)
    @ApiOperation(value = "修改商户信息管理")
    @PostMapping(value = "/update")
    public R<Boolean> update(@Validated @RequestBody TMerchant dto) {
        if (merchantService.isExit(dto)) {
            return R.fail("商户名称已存在");
        }
        return R.ok(merchantService.updateById(dto));
    }

    /**
     * 查看商户信息管理详情
     */
    @ApiOperation(value = "查看商户信息管理详情")
    @GetMapping(value = "/getDetailById")
    public R<TMerchant> getDetailById(@RequestParam String id) {
        return R.ok(merchantService.getById(id));
    }

    /**
     * 删除商户信息管理
     */
    @Log(title = "商户信息管理信息-删除商户信息管理", businessType = BusinessType.DELETE)
    @ApiOperation(value = "删除商户信息管理")
    @DeleteMapping(value = "/deleteById")
    public R<Boolean> deleteById(@RequestParam String id) {
        return R.ok(merchantService.removeById(id));
    }

    /**
     * 批量删除商户信息管理
     */
    @Log(title = "商户信息管理信息-删除商户信息管理", businessType = BusinessType.DELETE)
    @ApiOperation(value = "批量删除商户信息管理")
    @DeleteMapping(value = "/deleteByIds")
    public R<Boolean> deleteByIds(@RequestBody List<String> ids) {
        return R.ok(merchantService.removeByIds(ids));
    }

    @ApiOperation(value = "商户导入模板下载")
    @GetMapping("/import-template")
    public void importTemplate() {
        List<MerchantImport> merchantImports = new ArrayList<>();
        Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), MerchantImport.class, merchantImports);
        // 查询分类列表
        List<TMerchantType> merchantTypes = merchantTypeService.list(Wrappers.lambdaQuery(TMerchantType.class).orderByDesc(TMerchantType::getCreateTime));
        List<String> dataList = new ArrayList<>();
        if (!CollectionUtils.isEmpty(merchantTypes)) {
            dataList = merchantTypes.stream().map(TMerchantType::getTypeName).collect(Collectors.toList());
        }
        ExcelUtil.selectList(workbook, 1, 65535, 2, 2, dataList.toArray(new String[dataList.size()]), 1);
        HttpServletResponse response = WebUtils.response();
        ServletOutputStream outputStream = null;
        try {
            String fileName = URLEncoder.encode("商户信息导入模板.xls", "utf-8");
            response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
            response.setHeader("content-Type", "application/vnd.ms-excel");
            response.setHeader("Pragma", "no-cache");
            response.setHeader("Cache-Control", "no-cache");
            outputStream = response.getOutputStream();
            workbook.write(outputStream);
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("商户信息导入模板下载失败!");
        } finally {
            try {
                outputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    @Log(title = "商户信息-商户信息导入", businessType = BusinessType.INSERT)
    @ApiOperation(value = "商户信息导入")
    @Transactional(rollbackFor = Exception.class, propagation = Propagation.REQUIRES_NEW)
    @PostMapping("/import")
    public R<String> importInfo(@RequestPart("file") MultipartFile file) {
        List<TMerchant> merchants = new ArrayList<>();
        ImportParams params = new ImportParams();
        params.setHeadRows(1); //表头行数
        InputStream inputStream = null;
        List<MerchantImport> merchantImports;
        try {
            inputStream = file.getInputStream();
            merchantImports = ExcelImportUtil.importExcel(inputStream,
                    MerchantImport.class, params);
        } catch (Exception e) {
            e.printStackTrace();
            log.error("商户信息导入失败:{}", e.getMessage());
            throw new ServiceException("商户信息导入失败!");
        } finally {
            try {
                inputStream.close();
            } catch (IOException e) {
                throw new ServiceException(e.getMessage());
            }
        }
        if (CollectionUtils.isEmpty(merchantImports)) {
            throw new ServiceException("商户信息数据为空!");
        }
        JSONObject result = new JSONObject();
        int i = 1;
        for (MerchantImport merchantImport : merchantImports) {
            if (!StringUtils.hasLength(merchantImport.getMerchantName())){
                result.append("第"+i+"行：[", "商户名称"+"]不能为空");
                i++;
                continue;
            }
            if (!StringUtils.hasLength(merchantImport.getMerchantPhone())){
                result.append("第"+i+"行：[", "商户电话"+"]不能为空");
                i++;
                continue;
            }
            if (!StringUtils.hasLength(merchantImport.getTypeName())){
                result.append("第"+i+"行：[", "商户分类"+"]不能为空");
                i++;
                continue;
            }
            if (!StringUtils.hasLength(merchantImport.getAddress())){
                result.append("第"+i+"行：[", "商户地址"+"]不能为空");
                i++;
                continue;
            }
            TMerchantType merchantType = merchantTypeService.getOne(Wrappers.lambdaQuery(TMerchantType.class)
                    .eq(TMerchantType::getTypeName, merchantImport.getTypeName())
                    .last("LIMIT 1"));
            if(Objects.isNull(merchantType)){
                result.append("第"+i+"行：[", "商户分类"+"]不存在");
                i++;
                continue;
            }
            TMerchant merchant = new TMerchant();
            BeanUtils.copyProperties(merchantImport, merchant);
            merchants.add(merchant);
            i++;
        }
        merchantService.saveBatch(merchants);
        if(!result.isEmpty()){
            return R.fail(result.toString());
        }
        return R.ok();
    }

}