"""CMS 超级管理员 - 科室管理接口测试（CMS-DEPT-1~6，全局科室）。"""

import io

from openpyxl import Workbook
from django.core.files.uploadedfile import SimpleUploadedFile
from rest_framework.test import APIClient

from apps.user.models import Department
from .conftest import CacheTestCase, create_test_user, get_auth_client

CMS_DEPT_URL = '/api/cms/departments/'
XLSX_CT = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'


def d_detail(pk):
    return f'/api/cms/departments/{pk}/'


def make_xlsx(headers, rows):
    wb = Workbook(); ws = wb.active
    ws.append(headers)
    for r in rows:
        ws.append(r)
    buf = io.BytesIO(); wb.save(buf); buf.seek(0)
    return SimpleUploadedFile('dept.xlsx', buf.read(), content_type=XLSX_CT)


def super_client(phone='13933300001'):
    admin = create_test_user(phone=phone, password='Admin123', role_type='super_admin')
    return get_auth_client(admin)


class CmsDepartmentTest(CacheTestCase):
    def setUp(self):
        super().setUp()
        self.client = super_client()

    def test_requires_super_admin(self):
        self.assertEqual(APIClient().get(CMS_DEPT_URL).status_code, 401)
        u = create_test_user(phone='13933300009', role_type='doctor')
        self.assertEqual(get_auth_client(u).get(CMS_DEPT_URL).status_code, 403)

    def test_crud(self):
        # 新增
        resp = self.client.post(CMS_DEPT_URL, {'name': '内科', 'category': '临床'})
        self.assertEqual(resp.status_code, 201, resp.content)
        did = resp.json()['id']
        # 列表
        resp = self.client.get(CMS_DEPT_URL)
        self.assertEqual(resp.status_code, 200)
        self.assertIn('results', resp.json())
        # 编辑
        resp = self.client.patch(d_detail(did), {'category': '医技'})
        self.assertEqual(resp.status_code, 200, resp.content)
        self.assertEqual(resp.json()['category'], '医技')

    def test_duplicate_name(self):
        Department.objects.create(name='外科', category='临床')
        resp = self.client.post(CMS_DEPT_URL, {'name': '外科'})
        self.assertEqual(resp.status_code, 400, resp.content)
        self.assertEqual(resp.json()['code'], 'CMS_DEPARTMENT_NAME_EXISTS')

    def test_soft_delete(self):
        d = Department.objects.create(name='儿科', category='临床')
        resp = self.client.delete(d_detail(d.id))
        self.assertEqual(resp.status_code, 204, resp.content)
        self.assertFalse(Department.objects.filter(id=d.id).exists())
        self.assertTrue(Department.all_objects.get(id=d.id).is_deleted)

    def test_recreate_soft_deleted_name_returns_400(self):
        """软删后用相同名称重建：返回 400 CMS_DEPARTMENT_NAME_EXISTS（不产生重复行）。

        按 all_objects 校验，避免与已停用科室同名而静默新建重复记录。
        """
        d = Department.objects.create(name='康复科', category='临床')
        self.client.delete(d_detail(d.id))
        self.assertFalse(Department.objects.filter(name='康复科').exists())
        resp = self.client.post(CMS_DEPT_URL, {'name': '康复科', 'category': '临床'})
        self.assertEqual(resp.status_code, 400, resp.content)
        self.assertEqual(resp.json()['code'], 'CMS_DEPARTMENT_NAME_EXISTS')
        self.assertEqual(Department.all_objects.filter(name='康复科').count(), 1)

    def test_import_and_export(self):
        f = make_xlsx(['科室名称', '分类'], [['心内科', '临床'], ['', 'x'], ['心内科', '临床']])
        resp = self.client.post('/api/cms/departments/import/', {'file': f}, format='multipart')
        self.assertEqual(resp.status_code, 200, resp.content)
        body = resp.json()
        self.assertEqual(body['success'], 1)   # 1 成功；空名 + 重复各 1 失败
        self.assertEqual(body['failed'], 2)
        # 导出
        resp = self.client.get('/api/cms/departments/export/')
        self.assertEqual(resp.status_code, 200)
        self.assertEqual(resp['Content-Type'], XLSX_CT)

    def test_import_template(self):
        resp = self.client.get('/api/cms/departments/import-template/')
        self.assertEqual(resp.status_code, 200)
        self.assertEqual(resp['Content-Type'], XLSX_CT)