package com.xuekairui.user.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.xuekairui.common.Result;
import com.xuekairui.user.dto.BusinessLicenseReviewResponse;
import com.xuekairui.user.enums.LicenseStatus;
import com.xuekairui.user.service.BusinessLicenseService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.validation.Valid;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotNull;
import lombok.Data;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * 入驻信息审核管理接口（运营端）
 */
@Slf4j
@RestController
@RequestMapping("/api/admin/license")
@RequiredArgsConstructor
public class AdminLicenseController {

    private final BusinessLicenseService businessLicenseService;

    /**
     * 审核列表查询
     * @param reviewStatus 审核状态筛选（可选）：PENDING/APPROVED/REJECTED，不传则查全部
     * @param keyword      手机号关键词（可选）：匹配用户手机号或入驻联系电话
     */
    @GetMapping("/review")
    public Result<IPage<BusinessLicenseReviewResponse>> listPendingReviews(
            @RequestParam(required = false) String reviewStatus,
            @RequestParam(required = false) String keyword,
            @RequestParam(defaultValue = "1") int page,
            @RequestParam(defaultValue = "20") int size) {
        return Result.success(businessLicenseService.listByReviewStatus(reviewStatus, keyword, page, size));
    }

    /**
     * 管理员新增入驻信息（代客户填写，创建后状态为待审核，需再操作一次审核确认）
     * <p>
     * 必须选择一个未提交过入驻信息的客户，必填基础信息，
     * 必须上传营业执照、药品经营许可、（二类/三类医疗器械二选一）。
     * POST /api/admin/license
     */
    @PostMapping
    public Result<Void> createByAdmin(
            @Valid @RequestBody AdminCreateRequest request,
            HttpServletRequest httpRequest) {
        Long reviewerId = (Long) httpRequest.getAttribute("userId");
        businessLicenseService.createByAdmin(request.toSaveRequest(), reviewerId);
        return Result.success();
    }

    /**
     * 管理员编辑入驻信息（可修改客户信息、替换资质图片，保存后即时生效）
     * <p>
     * 可编辑全部入驻数据（含已审核），必填项约束同样生效。
     * PUT /api/admin/license/{licenseId}
     */
    @PutMapping("/{licenseId}")
    public Result<Void> editByAdmin(
            @PathVariable Long licenseId,
            @Valid @RequestBody AdminEditRequest request,
            HttpServletRequest httpRequest) {
        Long reviewerId = (Long) httpRequest.getAttribute("userId");
        businessLicenseService.editByAdmin(licenseId, request.toSaveRequest(), reviewerId);
        return Result.success();
    }

    @PostMapping("/review")
    public Result<Void> reviewLicense(
            @Valid @RequestBody ReviewRequest request,
            HttpServletRequest httpRequest) {
        Long reviewerId = (Long) httpRequest.getAttribute("userId");

        if (LicenseStatus.APPROVED.name().equals(request.getAction())) {
            businessLicenseService.approve(request.getLicenseId(), reviewerId);
        } else if (LicenseStatus.REJECTED.name().equals(request.getAction())) {
            businessLicenseService.reject(request.getLicenseId(), reviewerId, request.getRejectReason());
        } else {
            return Result.error(400, "审核动作无效，请使用 APPROVED 或 REJECTED");
        }
        return Result.success();
    }

    /**
     * 运营端手动同步入驻信息到第三方（智价云药店版）
     * <p>
     * 运营在后台选择某条入驻记录，点击"同步到第三方"按钮时调用。
     * 同步执行（非异步），便于运营立即看到同步结果。
     * POST /api/admin/license/{licenseId}/sync-third
     */
    @PostMapping("/{licenseId}/sync-third")
    public Result<String> syncToThirdParty(
            @PathVariable Long licenseId,
            HttpServletRequest httpRequest) {
        Long reviewerId = (Long) httpRequest.getAttribute("userId");
        String result = businessLicenseService.manualSyncToThirdParty(licenseId, reviewerId);
        return Result.success(result);
    }

    /**
     * 查询入驻信息同步差异列表（运营端）
     * <p>
     * 当我方与第三方都已审核通过但字段不一致时，差异记录保存到 t_license_sync_diff。
     * 运营在此查看待处理差异，决定采纳第三方值、保留本地值或手动调整。
     * GET /api/admin/license/sync-diff?status=0
     */
    @GetMapping("/sync-diff")
    public Result<List<com.xuekairui.user.entity.LicenseSyncDiff>> listSyncDiff(
            @RequestParam(required = false) Integer status) {
        return Result.success(businessLicenseService.listSyncDiff(status));
    }

    /**
     * 处理入驻信息同步差异（运营端）
     * <p>
     * 运营对每条差异记录决定处理方式：
     * <ul>
     *   <li>ADOPT_THIRD：采纳第三方值，将本地字段更新为第三方值</li>
     *   <li>KEEP_LOCAL：保留本地值，不修改数据</li>
     *   <li>MANUAL：运营已通过编辑接口手动修改入驻信息</li>
     * </ul>
     *
     * POST /api/admin/license/sync-diff/{diffId}/handle
     */
    @PostMapping("/sync-diff/{diffId}/handle")
    public Result<Void> handleSyncDiff(
            @PathVariable Long diffId,
            @Valid @RequestBody HandleDiffRequest request,
            HttpServletRequest httpRequest) {
        Long reviewerId = (Long) httpRequest.getAttribute("userId");
        businessLicenseService.handleSyncDiff(diffId, request.getAction(), request.getRemark(), reviewerId);
        return Result.success();
    }

    @Data
    public static class ReviewRequest {
        @NotNull(message = "入驻信息ID不能为空")
        private Long licenseId;

        @NotBlank(message = "审核动作不能为空")
        private String action;

        private String rejectReason;
    }

    /**
     * 处理入驻信息同步差异请求
     */
    @Data
    public static class HandleDiffRequest {
        /** 处理动作：ADOPT_THIRD-采纳第三方 / KEEP_LOCAL-保留本地 / MANUAL-手动调整 */
        @NotBlank(message = "处理动作不能为空")
        private String action;

        /** 处理备注（可选） */
        private String remark;
    }

    /**
     * 管理员新增入驻信息请求
     */
    @Data
    public static class AdminCreateRequest {

        /** 客户用户ID（必须选择未提交过入驻信息的客户） */
        @NotNull(message = "必须选择一个客户")
        private Long userId;

        /** 店铺名称 */
        @NotBlank(message = "店铺名称不能为空")
        private String storeName;

        /** 终端类型：SINGLE-单店, CHAIN-连锁, CLINIC-诊所, COMMUNITY_HEALTH-社康 */
        @NotBlank(message = "终端类型不能为空")
        private String terminalType;

        /** 省 */
        @NotBlank(message = "所在省不能为空")
        private String province;

        /** 市 */
        @NotBlank(message = "所在市不能为空")
        private String city;

        /** 区 */
        @NotBlank(message = "所在区不能为空")
        private String district;

        /** 店铺详细地址 */
        @NotBlank(message = "店铺地址不能为空")
        private String storeAddress;

        /** 联系人姓名 */
        @NotBlank(message = "联系人姓名不能为空")
        private String contactPerson;

        /** 联系电话 */
        @NotBlank(message = "联系电话不能为空")
        private String contactPhone;

        /** 营业执照图片URL */
        @NotBlank(message = "营业执照图片不能为空")
        private String businessLicenseUrl;

        /** 药品经营许可证图片URL */
        @NotBlank(message = "药品经营许可证不能为空")
        private String drugLicenseUrl;

        /** 统一社会信用代码 */
        private String creditCode;

        /** 二类医疗器械备案图片URL */
        private String medicalDeviceClass2Url;

        /** 三类医疗器械备案图片URL */
        private String medicalDeviceClass3Url;

        public BusinessLicenseService.BusinessLicenseSaveRequest toSaveRequest() {
            return BusinessLicenseService.BusinessLicenseSaveRequest.builder()
                    .userId(userId)
                    .storeName(storeName)
                    .terminalType(terminalType)
                    .province(province)
                    .city(city)
                    .district(district)
                    .storeAddress(storeAddress)
                    .contactPerson(contactPerson)
                    .contactPhone(contactPhone)
                    .businessLicenseUrl(businessLicenseUrl)
                    .drugLicenseUrl(drugLicenseUrl)
                    .creditCode(creditCode)
                    .medicalDeviceClass2Url(medicalDeviceClass2Url)
                    .medicalDeviceClass3Url(medicalDeviceClass3Url)
                    .build();
        }
    }

    /**
     * 管理员编辑入驻信息请求（不含 userId，编辑时客户绑定关系不可更改）
     */
    @Data
    public static class AdminEditRequest {

        /** 店铺名称 */
        @NotBlank(message = "店铺名称不能为空")
        private String storeName;

        /** 终端类型：SINGLE-单店, CHAIN-连锁, CLINIC-诊所, COMMUNITY_HEALTH-社康 */
        @NotBlank(message = "终端类型不能为空")
        private String terminalType;

        /** 省 */
        @NotBlank(message = "所在省不能为空")
        private String province;

        /** 市 */
        @NotBlank(message = "所在市不能为空")
        private String city;

        /** 区 */
        @NotBlank(message = "所在区不能为空")
        private String district;

        /** 店铺详细地址 */
        @NotBlank(message = "店铺地址不能为空")
        private String storeAddress;

        /** 联系人姓名 */
        @NotBlank(message = "联系人姓名不能为空")
        private String contactPerson;

        /** 联系电话 */
        @NotBlank(message = "联系电话不能为空")
        private String contactPhone;

        /** 营业执照图片URL */
        @NotBlank(message = "营业执照图片不能为空")
        private String businessLicenseUrl;

        /** 药品经营许可证图片URL */
        @NotBlank(message = "药品经营许可证不能为空")
        private String drugLicenseUrl;

        /** 统一社会信用代码 */
        private String creditCode;

        /** 二类医疗器械备案图片URL */
        private String medicalDeviceClass2Url;

        /** 三类医疗器械备案图片URL */
        private String medicalDeviceClass3Url;

        public BusinessLicenseService.BusinessLicenseSaveRequest toSaveRequest() {
            return BusinessLicenseService.BusinessLicenseSaveRequest.builder()
                    .storeName(storeName)
                    .terminalType(terminalType)
                    .province(province)
                    .city(city)
                    .district(district)
                    .storeAddress(storeAddress)
                    .contactPerson(contactPerson)
                    .contactPhone(contactPhone)
                    .businessLicenseUrl(businessLicenseUrl)
                    .drugLicenseUrl(drugLicenseUrl)
                    .creditCode(creditCode)
                    .medicalDeviceClass2Url(medicalDeviceClass2Url)
                    .medicalDeviceClass3Url(medicalDeviceClass3Url)
                    .build();
        }
    }
}