package com.crm.lead.controller;

import com.crm.base.domain.result.PageResult;
import com.crm.base.domain.result.Result;
import com.crm.base.domain.result.BatchResult;
import com.crm.lead.domain.dto.LeadDTO;
import com.crm.lead.domain.dto.LeadBatchFailItem;
import com.crm.lead.domain.dto.LeadFeedbackDTO;
import com.crm.lead.domain.dto.LeadHistoryDTO;
import com.crm.lead.domain.dto.LeadStatsDTO;
import com.crm.lead.domain.param.ConvertOpportunityParam;
import com.crm.lead.domain.param.LeadPageParam;
import com.crm.lead.service.ILeadService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
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;

/**
 * 线索管理接口（薄适配层）
 * <p>权限策略：不种子化 button 权限点（用户决策），ApiPermissionInterceptor 对未注册 URL fail-open。
 * 数据隔离由 {@code @DataScope(module="lead", ownerColumn="owner_user_id", deptColumn="dept_id")} 自动注入。</p>
 */
@Tag(name = "线索管理")
@RestController
@RequestMapping("/api/lead")
@RequiredArgsConstructor
public class LeadController {

    private final ILeadService leadService;

    // ==================== 查询 ====================

    @Operation(summary = "线索分页（四视图：PUBLIC_POOL/MY_LEAD/MY_FOLLOW/MANAGE）")
    @PostMapping("/page")
    public Result<PageResult<LeadDTO>> page(LeadPageParam param) {
        return Result.success(leadService.pageLeads(param));
    }
    @Operation(summary = "线索详情")
    @GetMapping("/detail")
    public Result<LeadDTO> detail(@RequestParam("id") Long id) {
        return Result.success(leadService.getLeadDetail(id));
    }

    @Operation(summary = "历史记录（只展示 5 种：领取/释放/反馈/转商机/编辑）")
    @GetMapping("/history")
    public Result<List<LeadHistoryDTO>> history(@RequestParam("leadId") Long leadId) {
        return Result.success(leadService.listHistory(leadId));
    }

    // ==================== 创建/编辑/删除 ====================

    @Operation(summary = "新建线索（claimOnCreate=true 销售新增即领取）")
    @PostMapping("/create")
    public Result<Long> create(LeadDTO dto,
                               @RequestParam(value = "claimOnCreate", defaultValue = "false") boolean claimOnCreate) {
        return Result.success(leadService.createLead(dto, claimOnCreate));
    }

    @Operation(summary = "编辑线索（非终态可编辑）")
    @PostMapping("/edit")
    public Result<Void> edit(LeadDTO dto) {
        leadService.editLead(dto);
        return Result.success();
    }

    @Operation(summary = "删除线索（已转商机禁止删除）")
    @PostMapping("/delete")
    public Result<Void> delete(@RequestParam("id") Long id) {
        leadService.deleteLead(id);
        return Result.success();
    }

    // ==================== 流转操作 ====================

    @Operation(summary = "领取线索（待领取→已领取）")
    @PostMapping("/claim")
    public Result<Void> claim(@RequestParam("id") Long id) {
        leadService.claimLead(id);
        return Result.success();
    }

    @Operation(summary = "分配线索到池（未分发→待领取）")
    @PostMapping("/assign-pool")
    public Result<Void> assignToPool(@RequestParam("id") Long id,
                                     @RequestParam("poolId") Long poolId) {
        leadService.assignToPool(id, poolId);
        return Result.success();
    }

    @Operation(summary = "分配线索到销售（未分发/待领取→已领取 or 作废自环）")
    @PostMapping("/assign-user")
    public Result<Void> assignToUser(@RequestParam("id") Long id,
                                     @RequestParam("userId") Long userId) {
        leadService.assignToUser(id, userId);
        return Result.success();
    }

    @Operation(summary = "保存反馈草稿（不改状态机）")
    @PostMapping("/feedback-draft")
    public Result<Void> feedbackDraft(LeadFeedbackDTO dto) {
        leadService.saveFeedbackDraft(dto);
        return Result.success();
    }

    @Operation(summary = "提交反馈（已领取→跟进中 or →作废）")
    @PostMapping("/feedback-submit")
    public Result<Void> feedbackSubmit(LeadFeedbackDTO dto) {
        leadService.submitFeedback(dto);
        return Result.success();
    }

    @Operation(summary = "转商机（已领取/跟进中→已转商机）")
    @PostMapping("/convert")
    public Result<Void> convert(@RequestParam("id") Long id,
                                ConvertOpportunityParam param) {
        leadService.convertToOpportunity(id, param);
        return Result.success();
    }

    @Operation(summary = "释放线索（已领取/跟进中→待领取）")
    @PostMapping("/release")
    public Result<Void> release(@RequestParam("id") Long id) {
        leadService.releaseLead(id);
        return Result.success();
    }

    @Operation(summary = "激活线索（过期失效→恢复失效前态）")
    @PostMapping("/activate")
    public Result<Void> activate(@RequestParam("id") Long id) {
        leadService.activateLead(id);
        return Result.success();
    }

    // ==================== 关注 ====================

    @Operation(summary = "关注线索")
    @PostMapping("/follow")
    public Result<Void> follow(@RequestParam("id") Long id) {
        leadService.followLead(id);
        return Result.success();
    }

    @Operation(summary = "取消关注")
    @PostMapping("/unfollow")
    public Result<Void> unfollow(@RequestParam("id") Long id) {
        leadService.unfollowLead(id);
        return Result.success();
    }

    @Operation(summary = "视图统计卡片（与 /page 同套筛选口径，口径随视图）")
    @PostMapping("/stats")
    public Result<LeadStatsDTO> stats(LeadPageParam param) {
        return Result.success(leadService.countStats(param));
    }

    // ==================== 批量操作（非原子、逐条 CAS、部分成功，ADR-0023） ====================

    @Operation(summary = "批量领取")
    @PostMapping("/claim-batch")
    public Result<BatchResult<LeadBatchFailItem>> claimBatch(@RequestParam("ids") List<Long> ids) {
        return Result.success(leadService.claimBatch(ids));
    }

    @Operation(summary = "批量分配到池（未分发→待领取）")
    @PostMapping("/assign-pool-batch")
    public Result<BatchResult<LeadBatchFailItem>> assignToPoolBatch(@RequestParam("ids") List<Long> ids,
                                                                    @RequestParam("poolId") Long poolId) {
        return Result.success(leadService.assignToPoolBatch(ids, poolId));
    }

    @Operation(summary = "批量分配到销售（统一分配给同一销售）")
    @PostMapping("/assign-user-batch")
    public Result<BatchResult<LeadBatchFailItem>> assignToUserBatch(@RequestParam("ids") List<Long> ids,
                                                                    @RequestParam("userId") Long userId) {
        return Result.success(leadService.assignToUserBatch(ids, userId));
    }

    @Operation(summary = "批量释放（已领取/跟进中→待领取）")
    @PostMapping("/release-batch")
    public Result<BatchResult<LeadBatchFailItem>> releaseBatch(@RequestParam("ids") List<Long> ids) {
        return Result.success(leadService.releaseBatch(ids));
    }

    @Operation(summary = "批量激活（过期失效→恢复失效前态）")
    @PostMapping("/activate-batch")
    public Result<BatchResult<LeadBatchFailItem>> activateBatch(@RequestParam("ids") List<Long> ids) {
        return Result.success(leadService.activateBatch(ids));
    }

    @Operation(summary = "批量删除（已转商机禁止删除，记失败）")
    @PostMapping("/delete-batch")
    public Result<BatchResult<LeadBatchFailItem>> deleteBatch(@RequestParam("ids") List<Long> ids) {
        return Result.success(leadService.deleteBatch(ids));
    }
}