"""CRM 合同子模块路由 — 变更/模板/审批独立页"""
from __future__ import annotations

from datetime import datetime
from typing import Optional

from fastapi import Depends, Query
from sqlalchemy.orm import Session

from app.core.database import get_db
from app.core.menu_guard import require_admin_or_super_admin
from app.core.response import error_response, success_response
from app.core.tenant_context import get_tenant_no
from app.crud.crm.data_scope_helpers import crm_user_info
from app.crud.crm.contract import (
    create_contract_change,
    create_contract_template,
    export_contract_changes,
    export_contract_templates,
    execute_change,
    get_contract_change_detail,
    get_contract_template_detail,
    list_contract_changes,
    list_contract_templates,
    soft_delete_contract_changes,
    soft_delete_contract_templates,
    submit_change_approval,
    toggle_contract_template_active,
    total_pages,
    update_contract_change,
    update_contract_template,
    withdraw_change,
)
from app.crud.crm.contract_approval import (
    approve_pass,
    approve_reject,
    approve_transfer,
    export_contract_approvals,
    get_contract_approval_detail,
    list_contract_approvals_page,
    refresh_approver_names,
)
from app.schemas.crm.contract import (
    ContractApprovalExportBody,
    ContractApprovalListQuery,
    ContractApprovalPassBody,
    ContractApprovalRefreshNamesBody,
    ContractApprovalRejectBody,
    ContractApprovalTransferBody,
    ContractChangeCreateBody,
    ContractChangeExportBody,
    ContractChangeListQuery,
    ContractChangeSubmitBody,
    ContractChangeUpdateBody,
    ContractTemplateCreateBody,
    ContractTemplateExportBody,
    ContractTemplateListQuery,
    ContractTemplateUpdateBody,
)
from app.utils.crm_export_columns import (
    CONTRACT_APPROVAL_EXPORT_COLUMNS,
    CONTRACT_CHANGE_EXPORT_COLUMNS,
    CONTRACT_TEMPLATE_EXPORT_COLUMNS,
)
from app.utils.excel_export import (
    ExportValidationError,
    export_rows_to_xlsx_response,
    filter_export_columns,
)
from app.api.crm import _filter_export_rows_by_ids


def register_contract_sub_routes(router):
    # --- 合同变更 ---
    @router.get("/contract/change/list")
    async def contract_change_list(
        pageNum: int = Query(1, ge=1),
        pageSize: int = Query(10, ge=1, le=500),
        contractId: Optional[str] = None,
        contractNo: Optional[str] = None,
        contractName: Optional[str] = None,
        changeType: Optional[str] = None,
        approvalStatus: Optional[str] = None,
        beginTime: Optional[str] = None,
        endTime: Optional[str] = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            query = ContractChangeListQuery(
                pageNum=pageNum,
                pageSize=pageSize,
                contractId=contractId,
                contractNo=contractNo,
                contractName=contractName,
                changeType=changeType,
                approvalStatus=approvalStatus,
                beginTime=beginTime,
                endTime=endTime,
            )
            rows, total = list_contract_changes(
                db,
                tenant_no,
                user_info=user_info,
                page=query.pageNum,
                page_size=query.pageSize,
                filters=query.model_dump(by_alias=True, exclude={"pageNum", "pageSize"}, exclude_none=True),
            )
            return success_response(
                {
                    "list": rows,
                    "rows": rows,
                    "total": total,
                    "pageNum": query.pageNum,
                    "pageSize": query.pageSize,
                    "totalPages": total_pages(total, query.pageSize),
                }
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.get("/contract/change/{change_id}")
    async def contract_change_detail(
        change_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            detail = get_contract_change_detail(db, change_id, tenant_no=tenant_no, user_info=user_info)
            return success_response(detail)
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/change")
    async def contract_change_add(
        body: ContractChangeCreateBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            dept_id = _user.get("dept_id", "") or _user.get("create_dept_id", "") or ""
            detail = create_contract_change(
                db,
                tenant_no=tenant_no,
                data=body.model_dump(by_alias=True),
                user_id=user_id,
                dept_id=dept_id,
            )
            return success_response(detail["id"], message="新增成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/change")
    async def contract_change_edit(
        body: ContractChangeUpdateBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            data = body.model_dump(by_alias=True)
            change_id = data.pop("id")
            detail = update_contract_change(
                db,
                change_id,
                tenant_no=tenant_no,
                data=data,
                user_id=user_id,
                user_info=user_info,
            )
            return success_response(detail, message="修改成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.delete("/contract/change/{ids}")
    async def contract_change_remove(
        ids: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            id_list = [x.strip() for x in ids.split(",") if x.strip()]
            soft_delete_contract_changes(db, id_list, tenant_no=tenant_no, user_info=user_info)
            return success_response(None, message="删除成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/change/submitApproval")
    async def contract_change_submit_approval(
        body: ContractChangeSubmitBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            submit_change_approval(
                db,
                body.id,
                tenant_no=tenant_no,
                approver_ids=body.approverIds,
                remark=body.remark or "",
                user_id=user_id,
            )
            return success_response(None, message="提交成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/change/withdraw/{change_id}")
    async def contract_change_withdraw(
        change_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            withdraw_change(db, change_id, tenant_no=tenant_no, user_id=user_id)
            return success_response(None, message="撤回成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/change/execute/{change_id}")
    async def contract_change_execute(
        change_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            execute_change(db, change_id, tenant_no=tenant_no, user_id=user_id)
            return success_response(None, message="执行成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/change/export")
    async def contract_change_export(
        body: ContractChangeExportBody = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            list_body = body or ContractChangeExportBody()
            filters = list_body.model_dump(
                by_alias=True,
                exclude={"pageNum", "pageSize"},
                exclude_none=True,
            )
            rows = export_contract_changes(db, tenant_no, filters=filters)
            rows = _filter_export_rows_by_ids(rows, getattr(list_body, "ids", None) or getattr(body, "ids", None))
            export_cols = filter_export_columns(CONTRACT_CHANGE_EXPORT_COLUMNS, getattr(list_body, "columns", None) or getattr(body, "columns", None))
            return export_rows_to_xlsx_response(
                db,
                tenant_no=tenant_no,
                sheet_title="合同变更记录",
                columns=export_cols,
                rows=rows,
                filename_stem=f"合同变更_{datetime.now().strftime('%Y%m%d%H%M%S')}",
                include_legacy_filename=False,
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    # --- 合同模板库 ---
    @router.get("/contract/template/list")
    async def contract_template_list(
        pageNum: int = Query(1, ge=1),
        pageSize: int = Query(10, ge=1, le=500),
        templateNo: Optional[str] = None,
        templateName: Optional[str] = None,
        templateType: Optional[str] = None,
        isActive: Optional[int] = None,
        beginTime: Optional[str] = None,
        endTime: Optional[str] = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            query = ContractTemplateListQuery(
                pageNum=pageNum,
                pageSize=pageSize,
                templateNo=templateNo,
                templateName=templateName,
                templateType=templateType,
                isActive=isActive,
                beginTime=beginTime,
                endTime=endTime,
            )
            rows, total = list_contract_templates(
                db,
                tenant_no,
                user_info=user_info,
                page=query.pageNum,
                page_size=query.pageSize,
                filters=query.model_dump(by_alias=True, exclude={"pageNum", "pageSize"}, exclude_none=True),
            )
            return success_response(
                {
                    "list": rows,
                    "rows": rows,
                    "total": total,
                    "pageNum": query.pageNum,
                    "pageSize": query.pageSize,
                    "totalPages": total_pages(total, query.pageSize),
                }
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.get("/contract/template/{template_id}")
    async def contract_template_detail(
        template_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            detail = get_contract_template_detail(db, template_id, tenant_no=tenant_no)
            return success_response(detail)
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/template")
    async def contract_template_add(
        body: ContractTemplateCreateBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            dept_id = _user.get("dept_id", "") or _user.get("create_dept_id", "") or ""
            detail = create_contract_template(
                db,
                tenant_no=tenant_no,
                data=body.model_dump(by_alias=True),
                user_id=user_id,
                dept_id=dept_id,
            )
            return success_response(detail["id"], message="新增成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/template")
    async def contract_template_edit(
        body: ContractTemplateUpdateBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            data = body.model_dump(by_alias=True)
            template_id = data.pop("id")
            detail = update_contract_template(
                db,
                template_id,
                tenant_no=tenant_no,
                data=data,
                user_id=user_id,
                user_info=user_info,
            )
            return success_response(detail, message="修改成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.delete("/contract/template/{ids}")
    async def contract_template_remove(
        ids: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            id_list = [x.strip() for x in ids.split(",") if x.strip()]
            soft_delete_contract_templates(db, id_list, tenant_no=tenant_no, user_info=user_info)
            return success_response(None, message="删除成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/template/enable/{template_id}")
    async def contract_template_enable(
        template_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            toggle_contract_template_active(
                db, template_id, tenant_no=tenant_no, is_active=1, user_id=user_id
            )
            return success_response(None, message="启用成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.put("/contract/template/disable/{template_id}")
    async def contract_template_disable(
        template_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            user_id = _user.get("user_id", "") or _user.get("id", "")
            toggle_contract_template_active(
                db, template_id, tenant_no=tenant_no, is_active=0, user_id=user_id
            )
            return success_response(None, message="停用成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/template/export")
    async def contract_template_export(
        body: ContractTemplateExportBody = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            list_body = body or ContractTemplateExportBody()
            filters = list_body.model_dump(
                by_alias=True,
                exclude={"pageNum", "pageSize"},
                exclude_none=True,
            )
            rows = export_contract_templates(db, tenant_no, filters=filters)
            rows = _filter_export_rows_by_ids(rows, getattr(list_body, "ids", None) or getattr(body, "ids", None))
            export_cols = filter_export_columns(CONTRACT_TEMPLATE_EXPORT_COLUMNS, getattr(list_body, "columns", None) or getattr(body, "columns", None))
            return export_rows_to_xlsx_response(
                db,
                tenant_no=tenant_no,
                sheet_title="合同模板",
                columns=export_cols,
                rows=rows,
                filename_stem=f"合同模板_{datetime.now().strftime('%Y%m%d%H%M%S')}",
                include_legacy_filename=False,
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    # --- 审批记录独立页 ---
    @router.get("/contract/approval/list")
    async def contract_approval_list(
        pageNum: int = Query(1, ge=1),
        pageSize: int = Query(10, ge=1, le=500),
        contractId: Optional[str] = None,
        contractNo: Optional[str] = None,
        contractName: Optional[str] = None,
        approverName: Optional[str] = None,
        approvalResult: Optional[str] = None,
        beginTime: Optional[str] = None,
        endTime: Optional[str] = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            query = ContractApprovalListQuery(
                pageNum=pageNum,
                pageSize=pageSize,
                contractId=contractId,
                contractNo=contractNo,
                contractName=contractName,
                approverName=approverName,
                approvalResult=approvalResult,
                beginTime=beginTime,
                endTime=endTime,
            )
            rows, total = list_contract_approvals_page(
                db,
                tenant_no,
                page=query.pageNum,
                page_size=query.pageSize,
                filters=query.model_dump(by_alias=True, exclude={"pageNum", "pageSize"}, exclude_none=True),
            )
            return success_response(
                {
                    "list": rows,
                    "rows": rows,
                    "total": total,
                    "pageNum": query.pageNum,
                    "pageSize": query.pageSize,
                    "totalPages": total_pages(total, query.pageSize),
                }
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.get("/contract/approval/{approval_id}")
    async def contract_approval_detail(
        approval_id: str,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            detail = get_contract_approval_detail(db, approval_id, tenant_no=tenant_no)
            return success_response(detail)
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/approval/pass")
    async def contract_approval_pass(
        body: ContractApprovalPassBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            user_id = _user.get("user_id", "") or _user.get("id", "")
            approve_pass(db, body.id, approval_opinion=body.approvalOpinion or "", user_id=user_id)
            db.commit()
            return success_response(None, message="审批通过")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/approval/reject")
    async def contract_approval_reject(
        body: ContractApprovalRejectBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            user_id = _user.get("user_id", "") or _user.get("id", "")
            approve_reject(db, body.id, approval_opinion=body.approvalOpinion, user_id=user_id)
            db.commit()
            return success_response(None, message="已驳回")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/approval/transfer")
    async def contract_approval_transfer(
        body: ContractApprovalTransferBody,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            user_id = _user.get("user_id", "") or _user.get("id", "")
            approve_transfer(
                db,
                body.id,
                target_approver_id=body.targetApproverId,
                transfer_reason=body.transferReason,
                user_id=user_id,
            )
            db.commit()
            return success_response(None, message="转审成功")
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/approval/export")
    async def contract_approval_export(
        body: ContractApprovalExportBody = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            tenant_no = get_tenant_no(db, _user)
            user_info = crm_user_info(_user)
            list_body = body or ContractApprovalExportBody()
            filters = list_body.model_dump(
                by_alias=True,
                exclude={"pageNum", "pageSize"},
                exclude_none=True,
            )
            rows = export_contract_approvals(db, tenant_no, filters=filters)
            rows = _filter_export_rows_by_ids(rows, getattr(list_body, "ids", None) or getattr(body, "ids", None))
            export_cols = filter_export_columns(CONTRACT_APPROVAL_EXPORT_COLUMNS, getattr(list_body, "columns", None) or getattr(body, "columns", None))
            return export_rows_to_xlsx_response(
                db,
                tenant_no=tenant_no,
                sheet_title="合同审批记录",
                columns=export_cols,
                rows=rows,
                filename_stem=f"合同审批_{datetime.now().strftime('%Y%m%d%H%M%S')}",
                include_legacy_filename=False,
            )
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))

    @router.post("/contract/approval/refreshNames")
    async def contract_approval_refresh_names(
        body: ContractApprovalRefreshNamesBody = None,
        _user: dict = Depends(require_admin_or_super_admin),
        db: Session = Depends(get_db),
    ):
        try:
            req = body or ContractApprovalRefreshNamesBody()
            count = refresh_approver_names(db, contract_id=req.contractId)
            db.commit()
            return success_response(count)
        except ValueError as e:
            return error_response(400, str(e))
        except Exception as e:
            return error_response(500, str(e))