from rest_framework.test import APIClient
from django.test import TestCase

from apps.accounts.models import AdminAuditLog, Invitation, Team, TeamMember, User


class AdminInvitationApiTests(TestCase):
    """Phase 2:平台超管邀请码发放管理(发开团队码 / 列跨团队码 / 撤销)+ 权限 + 审计。"""

    def setUp(self):
        self.admin = User.objects.create_user(username="padmin", password="x", is_platform_admin=True)
        self.normal = User.objects.create_user(username="normal", password="x")
        self.team = Team.objects.create(name="Normal Team", owner=self.normal)
        TeamMember.objects.create(team=self.team, user=self.normal, role=TeamMember.Role.OWNER)
        self.admin_client = APIClient()
        self.admin_client.force_authenticate(self.admin)
        self.normal_client = APIClient()
        self.normal_client.force_authenticate(self.normal)

    def test_list_requires_platform_admin(self):
        self.assertEqual(self.normal_client.get("/api/admin/invitations/").status_code, 403)
        self.assertEqual(self.admin_client.get("/api/admin/invitations/").status_code, 200)

    def test_create_create_team_code_and_audit(self):
        r = self.admin_client.post("/api/admin/invitations/", {"email": "x@y.z"}, format="json")
        self.assertEqual(r.status_code, 201)
        self.assertEqual(r.data["kind"], Invitation.Kind.CREATE_TEAM)
        self.assertTrue(r.data["code"].startswith("TEAM-"))
        self.assertIsNone(r.data["team"])
        self.assertEqual(r.data["register_url"], f"/register?invite={r.data['code']}")
        self.assertTrue(AdminAuditLog.objects.filter(action="invite.issue_create_team").exists())

    def test_create_requires_platform_admin(self):
        self.assertEqual(self.normal_client.post("/api/admin/invitations/", {}, format="json").status_code, 403)

    def test_list_is_cross_team(self):
        self.admin_client.post("/api/admin/invitations/", {}, format="json")
        Invitation.objects.create(kind=Invitation.Kind.JOIN_TEAM, team=self.team, role=TeamMember.Role.MEMBER)
        r = self.admin_client.get("/api/admin/invitations/")
        self.assertEqual(r.status_code, 200)
        self.assertGreaterEqual(r.data["count"], 2)
        kinds = {i["kind"] for i in r.data["results"]}
        self.assertIn(Invitation.Kind.CREATE_TEAM, kinds)
        self.assertIn(Invitation.Kind.JOIN_TEAM, kinds)

    def test_filter_by_kind(self):
        self.admin_client.post("/api/admin/invitations/", {}, format="json")
        Invitation.objects.create(kind=Invitation.Kind.JOIN_TEAM, team=self.team, role=TeamMember.Role.MEMBER)
        r = self.admin_client.get("/api/admin/invitations/?kind=create_team")
        self.assertTrue(all(i["kind"] == Invitation.Kind.CREATE_TEAM for i in r.data["results"]))

    def test_revoke_and_audit(self):
        created = self.admin_client.post("/api/admin/invitations/", {}, format="json")
        inv_id = created.data["id"]
        r = self.admin_client.post(f"/api/admin/invitations/{inv_id}/revoke/")
        self.assertEqual(r.status_code, 200)
        self.assertEqual(r.data["status"], Invitation.Status.REVOKED)
        self.assertTrue(AdminAuditLog.objects.filter(action="invite.revoke").exists())

    def test_revoke_requires_platform_admin(self):
        created = self.admin_client.post("/api/admin/invitations/", {}, format="json")
        inv_id = created.data["id"]
        self.assertEqual(self.normal_client.post(f"/api/admin/invitations/{inv_id}/revoke/").status_code, 403)

    def test_issued_create_team_code_registers_new_team(self):
        created = self.admin_client.post("/api/admin/invitations/", {}, format="json")
        code = created.data["code"]
        reg = APIClient().post(
            "/api/auth/register/",
            {"username": "new-via-admin-code", "password": "strong-pass-1", "team_name": "Via Admin", "invite_code": code},
            format="json",
        )
        self.assertEqual(reg.status_code, 201)
        self.assertTrue(Team.objects.filter(name="Via Admin").exists())
        # 码标 used
        self.assertEqual(Invitation.objects.get(code=code).status, Invitation.Status.USED)

    def test_revoked_code_cannot_register(self):
        created = self.admin_client.post("/api/admin/invitations/", {}, format="json")
        code = created.data["code"]
        self.admin_client.post(f"/api/admin/invitations/{created.data['id']}/revoke/")
        reg = APIClient().post(
            "/api/auth/register/",
            {"username": "blocked-user", "password": "strong-pass-1", "team_name": "Blocked", "invite_code": code},
            format="json",
        )
        self.assertEqual(reg.status_code, 400)