# -*- coding: utf-8 -*-
"""
联系记录 API（需要登录）：
- GET    /api/contacts         -> 查询联系记录（支持分页、搜索）
- GET    /api/contacts/query   -> 按电话号码或微信号查询（数据展示）
- POST   /api/contacts         -> 创建联系记录
- GET    /api/contacts/{id}    -> 查询单条记录
- PUT    /api/contacts/{id}    -> 更新记录
- DELETE /api/contacts/{id}    -> 删除记录
"""
from django.db.models import Q

from rest_framework import status
from rest_framework.decorators import api_view

from server.core.response import api_success, api_error
from server.models import ContactRecord
from server.serializers import ContactRecordSerializer


@api_view(["GET", "POST"])
def contact_list(request):
    if request.method == "GET":
        search = request.query_params.get("search", "")
        page = int(request.query_params.get("page", 1))
        page_size = int(request.query_params.get("page_size", 10))
        reply_status = request.query_params.get("reply_status")
        wechat = request.query_params.get("wechat_exchanged")

        qs = ContactRecord.objects.all()
        if search:
            qs = qs.filter(
                Q(name__icontains=search) |
                Q(position__icontains=search) |
                Q(contact__icontains=search)
            )
        if reply_status:
            qs = qs.filter(reply_status=reply_status)
        if wechat is not None:
            qs = qs.filter(wechat_exchanged=wechat.lower() in ("true", "1"))

        total = qs.count()
        start = (page - 1) * page_size
        end = start + page_size
        records = qs[start:end]

        return api_success({
            "total": total,
            "page": page,
            "page_size": page_size,
            "results": ContactRecordSerializer(records, many=True).data,
        })

    ser = ContactRecordSerializer(data=request.data)
    ser.is_valid(raise_exception=True)
    ser.save()
    return api_success(ser.data, http_status=status.HTTP_201_CREATED)


@api_view(["GET"])
def contact_query(request):
    """
    按电话号码或微信号查询联系记录（数据展示接口）。
    传入 contact 参数（电话号码或微信号），返回匹配到的所有记录。
    """
    contact = (request.query_params.get("contact") or "").strip()
    if not contact:
        return api_error(status.HTTP_400_BAD_REQUEST, "请提供 contact 参数（电话号码或微信号）")
    page = int(request.query_params.get("page", 1))
    page_size = int(request.query_params.get("page_size", 20))

    qs = ContactRecord.objects.filter(contact__icontains=contact).order_by("-created_at")
    total = qs.count()
    start = (page - 1) * page_size
    end = start + page_size
    records = qs[start:end]

    return api_success({
        "total": total,
        "page": page,
        "page_size": page_size,
        "contact_keyword": contact,
        "results": ContactRecordSerializer(records, many=True).data,
    })


@api_view(["GET", "PUT", "DELETE"])
def contact_detail(request, pk):
    try:
        obj = ContactRecord.objects.get(pk=pk)
    except ContactRecord.DoesNotExist:
        return api_error(status.HTTP_404_NOT_FOUND, "联系记录不存在")

    if request.method == "GET":
        return api_success(ContactRecordSerializer(obj).data)

    if request.method == "PUT":
        ser = ContactRecordSerializer(obj, data=request.data, partial=True)
        ser.is_valid(raise_exception=True)
        ser.save()
        return api_success(ser.data)

    obj.delete()
    return api_success(msg="联系记录已删除")