package com.gxwebsoft.credit.controller;

import com.gxwebsoft.common.core.annotation.OperationLog;
import com.gxwebsoft.common.core.web.ApiResult;
import com.gxwebsoft.common.core.web.BaseController;
import com.gxwebsoft.common.core.web.BatchParam;
import com.gxwebsoft.common.core.web.PageResult;
import com.gxwebsoft.common.system.entity.User;
import com.gxwebsoft.credit.entity.CreditBreachOfTrust;
import com.gxwebsoft.credit.param.CreditBreachOfTrustImportParam;
import com.gxwebsoft.credit.param.CreditBreachOfTrustParam;
import com.gxwebsoft.credit.service.CreditCompanyService;
import com.gxwebsoft.credit.service.CreditCompanyRecordCountService;
import com.gxwebsoft.credit.service.CreditBreachOfTrustService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.util.CollectionUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * 失信被执行人控制器
 *
 * @author 科技小王子
 * @since 2025-12-19 19:46:14
 */
@Tag(name = "失信被执行人管理")
@RestController
@RequestMapping("/api/credit/credit-breach-of-trust")
public class CreditBreachOfTrustController extends BaseController {
    @Resource
    private CreditBreachOfTrustService creditBreachOfTrustService;

    @Resource
    private BatchImportSupport batchImportSupport;

    @Resource
    private CreditCompanyService creditCompanyService;

    @Resource
    private CreditCompanyRecordCountService creditCompanyRecordCountService;

    @Operation(summary = "分页查询失信被执行人")
    @GetMapping("/page")
    public ApiResult<PageResult<CreditBreachOfTrust>> page(CreditBreachOfTrustParam param) {
        // 使用关联查询
        return success(creditBreachOfTrustService.pageRel(param));
    }

    @Operation(summary = "查询全部失信被执行人")
    @GetMapping()
    public ApiResult<List<CreditBreachOfTrust>> list(CreditBreachOfTrustParam param) {
        // 使用关联查询
        return success(creditBreachOfTrustService.listRel(param));
    }

    @Operation(summary = "根据id查询失信被执行人")
    @GetMapping("/{id}")
    public ApiResult<CreditBreachOfTrust> get(@PathVariable("id") Integer id) {
        // 使用关联查询
        return success(creditBreachOfTrustService.getByIdRel(id));
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:save')")
    @OperationLog
    @Operation(summary = "添加失信被执行人")
    @PostMapping()
    public ApiResult<?> save(@RequestBody CreditBreachOfTrust creditBreachOfTrust) {
        if (creditBreachOfTrustService.save(creditBreachOfTrust)) {
            return success("添加成功");
        }
        return fail("添加失败");
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:update')")
    @OperationLog
    @Operation(summary = "修改失信被执行人")
    @PutMapping()
    public ApiResult<?> update(@RequestBody CreditBreachOfTrust creditBreachOfTrust) {
        if (creditBreachOfTrustService.updateById(creditBreachOfTrust)) {
            return success("修改成功");
        }
        return fail("修改失败");
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:remove')")
    @OperationLog
    @Operation(summary = "删除失信被执行人")
    @DeleteMapping("/{id}")
    public ApiResult<?> remove(@PathVariable("id") Integer id) {
        if (creditBreachOfTrustService.removeById(id)) {
            return success("删除成功");
        }
        return fail("删除失败");
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:save')")
    @OperationLog
    @Operation(summary = "批量添加失信被执行人")
    @PostMapping("/batch")
    public ApiResult<?> saveBatch(@RequestBody List<CreditBreachOfTrust> list) {
        if (creditBreachOfTrustService.saveBatch(list)) {
            return success("添加成功");
        }
        return fail("添加失败");
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:update')")
    @OperationLog
    @Operation(summary = "批量修改失信被执行人")
    @PutMapping("/batch")
    public ApiResult<?> removeBatch(@RequestBody BatchParam<CreditBreachOfTrust> batchParam) {
        if (batchParam.update(creditBreachOfTrustService, "id")) {
            return success("修改成功");
        }
        return fail("修改失败");
    }

    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:remove')")
    @OperationLog
    @Operation(summary = "批量删除失信被执行人")
    @DeleteMapping("/batch")
    public ApiResult<?> removeBatch(@RequestBody List<Integer> ids) {
        if (creditBreachOfTrustService.removeByIds(ids)) {
            return success("删除成功");
        }
        return fail("删除失败");
    }

    /**
     * 根据企业名称匹配企业并更新 companyId（匹配 CreditCompany.name / CreditCompany.matchName）
     *
     * <p>默认仅更新 companyId=0 的记录；如需覆盖更新，传 onlyNull=false。</p>
     */
    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:update')")
    @OperationLog
    @Operation(summary = "根据企业名称匹配并更新companyId")
    @PostMapping("/company-id/refresh")
    public ApiResult<Map<String, Object>> refreshCompanyIdByCompanyName(
        @RequestParam(value = "onlyNull", required = false, defaultValue = "true") Boolean onlyNull,
        @RequestParam(value = "limit", required = false) Integer limit
    ) {
        User loginUser = getLoginUser();
        Integer currentTenantId = loginUser != null ? loginUser.getTenantId() : null;

        BatchImportSupport.CompanyIdRefreshStats stats = batchImportSupport.refreshCompanyIdByCompanyName(
            creditBreachOfTrustService,
            creditCompanyService,
            currentTenantId,
            onlyNull,
            limit,
            CreditBreachOfTrust::getId,
            CreditBreachOfTrust::setId,
            CreditBreachOfTrust::getPlaintiffAppellant,
            CreditBreachOfTrust::getCompanyId,
            CreditBreachOfTrust::setCompanyId,
            CreditBreachOfTrust::getHasData,
            CreditBreachOfTrust::setHasData,
            CreditBreachOfTrust::getTenantId,
            CreditBreachOfTrust::new
        );

        if (!stats.anyDataRead) {
            return success("无可更新数据", stats.toMap());
        }
        return success("更新完成，更新" + stats.updated + "条", stats.toMap());
    }

    /**
     * 批量导入失信被执行人
     */
    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:save')")
    @Operation(summary = "批量导入失信被执行人")
    @PostMapping("/import")
    public ApiResult<List<String>> importBatch(@RequestParam("file") MultipartFile file,
                                               @RequestParam(value = "companyId", required = false) Integer companyId) {
        List<String> errorMessages = new ArrayList<>();
        int successCount = 0;
        Set<Integer> touchedCompanyIds = new HashSet<>();

        try {
            int sheetIndex = ExcelImportSupport.findSheetIndex(file, "失信被执行人", 0);
            ExcelImportSupport.ImportResult<CreditBreachOfTrustImportParam> importResult = ExcelImportSupport.read(
                file, CreditBreachOfTrustImportParam.class, this::isEmptyImportRow, sheetIndex);
            List<CreditBreachOfTrustImportParam> list = importResult.getData();
            int usedTitleRows = importResult.getTitleRows();
            int usedHeadRows = importResult.getHeadRows();
            int usedSheetIndex = importResult.getSheetIndex();

            if (CollectionUtils.isEmpty(list)) {
                return fail("未读取到数据，请确认模板表头与示例格式一致", null);
            }

            User loginUser = getLoginUser();
            Integer currentUserId = loginUser != null ? loginUser.getUserId() : null;
            Integer currentTenantId = loginUser != null ? loginUser.getTenantId() : null;
            Map<String, String> urlByCaseNumber = ExcelImportSupport.readUrlByKey(file, usedSheetIndex, usedTitleRows, usedHeadRows, "案号");

            final int chunkSize = 500;
            final int mpBatchSize = 500;
            List<CreditBreachOfTrust> chunkItems = new ArrayList<>(chunkSize);
            List<Integer> chunkRowNumbers = new ArrayList<>(chunkSize);

            for (int i = 0; i < list.size(); i++) {
                CreditBreachOfTrustImportParam param = list.get(i);
                try {
                    CreditBreachOfTrust item = convertImportParamToEntity(param);
                    if (!ImportHelper.isBlank(item.getCaseNumber())) {
                        String link = urlByCaseNumber.get(item.getCaseNumber().trim());
                        if (!ImportHelper.isBlank(link)) {
                            item.setUrl(link.trim());
                        }
                    }

                    if (item.getCompanyId() == null && companyId != null) {
                        item.setCompanyId(companyId);
                    }
                    if (item.getCompanyId() != null && item.getCompanyId() > 0) {
                        touchedCompanyIds.add(item.getCompanyId());
                    }
                    if (item.getUserId() == null && currentUserId != null) {
                        item.setUserId(currentUserId);
                    }
                    if (item.getTenantId() == null && currentTenantId != null) {
                        item.setTenantId(currentTenantId);
                    }
                    if (item.getStatus() == null) {
                        item.setStatus(0);
                    }
                    if (item.getRecommend() == null) {
                        item.setRecommend(0);
                    }
                    if (item.getDeleted() == null) {
                        item.setDeleted(0);
                    }

                    int excelRowNumber = i + 1 + usedTitleRows + usedHeadRows;
                    if (ImportHelper.isBlank(item.getCaseNumber())) {
                        errorMessages.add("第" + excelRowNumber + "行：案号不能为空");
                        continue;
                    }

                    if (item.getCompanyId() != null && item.getCompanyId() > 0) {
                        touchedCompanyIds.add(item.getCompanyId());
                    }

                    chunkItems.add(item);
                    chunkRowNumbers.add(excelRowNumber);
                    if (chunkItems.size() >= chunkSize) {
                        successCount += batchImportSupport.persistChunkWithFallback(
                            chunkItems,
                            chunkRowNumbers,
                            () -> batchImportSupport.upsertBySingleKey(
                                creditBreachOfTrustService,
                                chunkItems,
                                CreditBreachOfTrust::getId,
                                CreditBreachOfTrust::setId,
                                CreditBreachOfTrust::getCaseNumber,
                                CreditBreachOfTrust::getCaseNumber,
                                null,
                                mpBatchSize
                            ),
                            (rowItem, rowNumber) -> {
                                boolean saved = creditBreachOfTrustService.save(rowItem);
                                if (!saved) {
                                    CreditBreachOfTrust existing = creditBreachOfTrustService.lambdaQuery()
                                        .eq(CreditBreachOfTrust::getCaseNumber, rowItem.getCaseNumber())
                                        .one();
                                    if (existing != null) {
                                        rowItem.setId(existing.getId());
                                        if (creditBreachOfTrustService.updateById(rowItem)) {
                                            return true;
                                        }
                                    }
                                } else {
                                    return true;
                                }
                                String prefix = rowNumber > 0 ? ("第" + rowNumber + "行：") : "";
                                errorMessages.add(prefix + "保存失败");
                                return false;
                            },
                            errorMessages
                        );
                        chunkItems.clear();
                        chunkRowNumbers.clear();
                    }
                } catch (Exception e) {
                    int excelRowNumber = i + 1 + usedTitleRows + usedHeadRows;
                    errorMessages.add("第" + excelRowNumber + "行：" + e.getMessage());
                    e.printStackTrace();
                }
            }

            if (!chunkItems.isEmpty()) {
                successCount += batchImportSupport.persistChunkWithFallback(
                    chunkItems,
                    chunkRowNumbers,
                    () -> batchImportSupport.upsertBySingleKey(
                        creditBreachOfTrustService,
                        chunkItems,
                        CreditBreachOfTrust::getId,
                        CreditBreachOfTrust::setId,
                        CreditBreachOfTrust::getCaseNumber,
                        CreditBreachOfTrust::getCaseNumber,
                        null,
                        mpBatchSize
                    ),
                    (rowItem, rowNumber) -> {
                        boolean saved = creditBreachOfTrustService.save(rowItem);
                        if (!saved) {
                            CreditBreachOfTrust existing = creditBreachOfTrustService.lambdaQuery()
                                .eq(CreditBreachOfTrust::getCaseNumber, rowItem.getCaseNumber())
                                .one();
                            if (existing != null) {
                                rowItem.setId(existing.getId());
                                if (creditBreachOfTrustService.updateById(rowItem)) {
                                    return true;
                                }
                            }
                        } else {
                            return true;
                        }
                        String prefix = rowNumber > 0 ? ("第" + rowNumber + "行：") : "";
                        errorMessages.add(prefix + "保存失败");
                        return false;
                    },
                    errorMessages
                );
            }

            creditCompanyRecordCountService.refresh(CreditCompanyRecordCountService.CountType.BREACH_OF_TRUST, touchedCompanyIds);

            if (errorMessages.isEmpty()) {
                return success("成功导入" + successCount + "条数据", null);
            } else {
                return success("导入完成，成功" + successCount + "条，失败" + errorMessages.size() + "条", errorMessages);
            }
        } catch (Exception e) {
            e.printStackTrace();
            return fail("导入失败：" + e.getMessage(), null);
        }
    }

    /**
     * 批量导入历史失信被执行人（仅解析“历史失信被执行人”选项卡）
     * 规则：案号相同则覆盖更新（recommend++ 记录更新次数）；案号不存在则插入。
     */
    @PreAuthorize("hasAuthority('credit:creditBreachOfTrust:save')")
    @Operation(summary = "批量导入历史失信被执行人")
    @PostMapping("/import/history")
    public ApiResult<List<String>> importHistoryBatch(@RequestParam("file") MultipartFile file,
                                                      @RequestParam(value = "companyId", required = false) Integer companyId) {
        List<String> errorMessages = new ArrayList<>();
        int successCount = 0;
        Set<Integer> touchedCompanyIds = new HashSet<>();

        try {
            int sheetIndex = ExcelImportSupport.findSheetIndex(file, "历史失信被执行人");
            if (sheetIndex < 0) {
                return fail("未读取到数据，请确认文件中存在“历史失信被执行人”选项卡且表头与示例格式一致", null);
            }

            ExcelImportSupport.ImportResult<CreditBreachOfTrustImportParam> importResult = ExcelImportSupport.read(
                file, CreditBreachOfTrustImportParam.class, this::isEmptyImportRow, sheetIndex);
            List<CreditBreachOfTrustImportParam> list = importResult.getData();
            int usedTitleRows = importResult.getTitleRows();
            int usedHeadRows = importResult.getHeadRows();
            int usedSheetIndex = importResult.getSheetIndex();

            if (CollectionUtils.isEmpty(list)) {
                return fail("未读取到数据，请确认模板表头与示例格式一致", null);
            }

            User loginUser = getLoginUser();
            Integer currentUserId = loginUser != null ? loginUser.getUserId() : null;
            Integer currentTenantId = loginUser != null ? loginUser.getTenantId() : null;
            Map<String, String> urlByCaseNumber = ExcelImportSupport.readUrlByKey(file, usedSheetIndex, usedTitleRows, usedHeadRows, "案号");

            // 同案号多条：以导入文件中“最后一条”为准（视为最新）
            LinkedHashMap<String, CreditBreachOfTrust> latestByCaseNumber = new LinkedHashMap<>();
            LinkedHashMap<String, Integer> latestRowByCaseNumber = new LinkedHashMap<>();

            for (int i = 0; i < list.size(); i++) {
                CreditBreachOfTrustImportParam param = list.get(i);
                int excelRowNumber = i + 1 + usedTitleRows + usedHeadRows;
                try {
                    CreditBreachOfTrust item = convertImportParamToEntity(param);
                    if (item.getCaseNumber() != null) {
                        item.setCaseNumber(item.getCaseNumber().trim());
                    }
                    if (ImportHelper.isBlank(item.getCaseNumber())) {
                        errorMessages.add("第" + excelRowNumber + "行：案号不能为空");
                        continue;
                    }

                    String link = urlByCaseNumber.get(item.getCaseNumber());
                    if (!ImportHelper.isBlank(link)) {
                        item.setUrl(link.trim());
                    }

                    if (item.getCompanyId() == null && companyId != null) {
                        item.setCompanyId(companyId);
                    }
                    if (item.getUserId() == null && currentUserId != null) {
                        item.setUserId(currentUserId);
                    }
                    if (item.getTenantId() == null && currentTenantId != null) {
                        item.setTenantId(currentTenantId);
                    }
                    if (item.getStatus() == null) {
                        item.setStatus(0);
                    }
                    if (item.getDeleted() == null) {
                        item.setDeleted(0);
                    }

                    latestByCaseNumber.put(item.getCaseNumber(), item);
                    latestRowByCaseNumber.put(item.getCaseNumber(), excelRowNumber);
                } catch (Exception e) {
                    errorMessages.add("第" + excelRowNumber + "行：" + e.getMessage());
                    e.printStackTrace();
                }
            }

            if (latestByCaseNumber.isEmpty()) {
                if (errorMessages.isEmpty()) {
                    return fail("未读取到数据，请确认模板表头与示例格式一致", null);
                }
                return success("导入完成，成功0条，失败" + errorMessages.size() + "条", errorMessages);
            }

            final int chunkSize = 500;
            final int mpBatchSize = 500;
            List<CreditBreachOfTrust> chunkItems = new ArrayList<>(chunkSize);
            List<Integer> chunkRowNumbers = new ArrayList<>(chunkSize);

            for (Map.Entry<String, CreditBreachOfTrust> entry : latestByCaseNumber.entrySet()) {
                String caseNumber = entry.getKey();
                CreditBreachOfTrust item = entry.getValue();
                Integer rowNo = latestRowByCaseNumber.get(caseNumber);
                chunkItems.add(item);
                chunkRowNumbers.add(rowNo != null ? rowNo : -1);
                if (chunkItems.size() >= chunkSize) {
                    successCount += batchImportSupport.persistChunkWithFallback(
                        chunkItems,
                        chunkRowNumbers,
                        () -> batchImportSupport.upsertBySingleKeyAndIncrementCounterOnUpdate(
                            creditBreachOfTrustService,
                            chunkItems,
                            CreditBreachOfTrust::getId,
                            CreditBreachOfTrust::setId,
                            CreditBreachOfTrust::getCaseNumber,
                            CreditBreachOfTrust::getCaseNumber,
                            CreditBreachOfTrust::getRecommend,
                            CreditBreachOfTrust::setRecommend,
                            null,
                            mpBatchSize
                        ),
                        (rowItem, rowNumber) -> {
                            if (rowItem.getRecommend() == null) {
                                rowItem.setRecommend(0);
                            }
                            boolean saved = creditBreachOfTrustService.save(rowItem);
                            if (!saved) {
                                CreditBreachOfTrust existing = creditBreachOfTrustService.lambdaQuery()
                                    .eq(CreditBreachOfTrust::getCaseNumber, rowItem.getCaseNumber())
                                    .select(CreditBreachOfTrust::getId, CreditBreachOfTrust::getRecommend)
                                    .one();
                                if (existing != null) {
                                    rowItem.setId(existing.getId());
                                    Integer old = existing.getRecommend();
                                    rowItem.setRecommend(old == null ? 1 : old + 1);
                                    if (creditBreachOfTrustService.updateById(rowItem)) {
                                        return true;
                                    }
                                }
                            } else {
                                return true;
                            }
                            String prefix = rowNumber > 0 ? ("第" + rowNumber + "行：") : "";
                            errorMessages.add(prefix + "保存失败");
                            return false;
                        },
                        errorMessages
                    );
                    chunkItems.clear();
                    chunkRowNumbers.clear();
                }
            }

            if (!chunkItems.isEmpty()) {
                successCount += batchImportSupport.persistChunkWithFallback(
                    chunkItems,
                    chunkRowNumbers,
                    () -> batchImportSupport.upsertBySingleKeyAndIncrementCounterOnUpdate(
                        creditBreachOfTrustService,
                        chunkItems,
                        CreditBreachOfTrust::getId,
                        CreditBreachOfTrust::setId,
                        CreditBreachOfTrust::getCaseNumber,
                        CreditBreachOfTrust::getCaseNumber,
                        CreditBreachOfTrust::getRecommend,
                        CreditBreachOfTrust::setRecommend,
                        null,
                        mpBatchSize
                        ),
                        (rowItem, rowNumber) -> {
                            if (rowItem.getRecommend() == null) {
                                rowItem.setRecommend(0);
                            }
                            boolean saved = creditBreachOfTrustService.save(rowItem);
                            if (!saved) {
                                CreditBreachOfTrust existing = creditBreachOfTrustService.lambdaQuery()
                                    .eq(CreditBreachOfTrust::getCaseNumber, rowItem.getCaseNumber())
                                    .select(CreditBreachOfTrust::getId, CreditBreachOfTrust::getRecommend)
                                .one();
                            if (existing != null) {
                                rowItem.setId(existing.getId());
                                Integer old = existing.getRecommend();
                                rowItem.setRecommend(old == null ? 1 : old + 1);
                                if (creditBreachOfTrustService.updateById(rowItem)) {
                                    return true;
                                }
                            }
                        } else {
                            return true;
                        }
                        String prefix = rowNumber > 0 ? ("第" + rowNumber + "行：") : "";
                        errorMessages.add(prefix + "保存失败");
                        return false;
                    },
                    errorMessages
                );
            }

            creditCompanyRecordCountService.refresh(CreditCompanyRecordCountService.CountType.BREACH_OF_TRUST, touchedCompanyIds);

            if (errorMessages.isEmpty()) {
                return success("成功导入" + successCount + "条数据", null);
            }
            return success("导入完成，成功" + successCount + "条，失败" + errorMessages.size() + "条", errorMessages);
        } catch (Exception e) {
            e.printStackTrace();
            return fail("导入失败：" + e.getMessage(), null);
        }
    }

    /**
     * 下载失信被执行人导入模板
     */
    @Operation(summary = "下载失信被执行人导入模板")
    @GetMapping("/import/template")
    public void downloadTemplate(HttpServletResponse response) throws IOException {
        List<CreditBreachOfTrustImportParam> templateList = new ArrayList<>();

        CreditBreachOfTrustImportParam example = new CreditBreachOfTrustImportParam();
        example.setCaseNumber("（2024）示例案号");
        example.setPlaintiffAppellant("原告示例");
        example.setAppellee("被告示例");
        example.setInvolvedAmount("20,293.91");
        example.setOccurrenceTime("2024-01-01");
        example.setCourtName("示例法院");
        example.setReleaseDate("2024-01-01");
        templateList.add(example);

        Workbook workbook = ExcelImportSupport.buildTemplate("失信被执行人导入模板", "失信被执行人", CreditBreachOfTrustImportParam.class, templateList);

        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        response.setHeader("Content-Disposition", "attachment; filename=credit_breach_of_trust_import_template.xlsx");

        workbook.write(response.getOutputStream());
        workbook.close();
    }

    private boolean isEmptyImportRow(CreditBreachOfTrustImportParam param) {
        if (param == null) {
            return true;
        }
        return ImportHelper.isBlank(param.getCaseNumber())
            && ImportHelper.isBlank(param.getPlaintiffAppellant())
            && ImportHelper.isBlank(param.getAppellee());
    }

    private CreditBreachOfTrust convertImportParamToEntity(CreditBreachOfTrustImportParam param) {
        CreditBreachOfTrust entity = new CreditBreachOfTrust();

        entity.setCaseNumber(param.getCaseNumber());
        entity.setPlaintiffAppellant(param.getPlaintiffAppellant());
        entity.setAppellee(param.getAppellee());
        entity.setInvolvedAmount(param.getInvolvedAmount());
        entity.setOccurrenceTime(param.getOccurrenceTime());
        entity.setCourtName(param.getCourtName());
        entity.setReleaseDate(param.getReleaseDate());
        entity.setComments(param.getComments());

        return entity;
    }

}
