from __future__ import annotations

from io import StringIO

from django.core.management import call_command
from django.test import TestCase

from pobsync_backend.config_source import DjangoConfigSource
from pobsync_backend.models import GlobalConfig, HostConfig, ScheduleConfig


class ConfigureCommandsTests(TestCase):
    def test_configure_global_creates_structured_config(self) -> None:
        out = StringIO()

        call_command(
            "configure_pobsync_global",
            backup_root="/backups",
            retention="daily=3,weekly=2,monthly=1,yearly=0",
            stdout=out,
        )

        config = GlobalConfig.objects.get(name="default")
        self.assertEqual(config.backup_root, "/backups")
        self.assertEqual(config.retention_daily, 3)
        self.assertIn("Created GlobalConfig", out.getvalue())

    def test_configure_host_uses_global_retention_defaults(self) -> None:
        GlobalConfig.objects.create(
            name="default",
            backup_root="/backups",
            retention_daily=5,
            retention_weekly=4,
            retention_monthly=3,
            retention_yearly=2,
        )
        out = StringIO()

        call_command(
            "configure_pobsync_host",
            "web-01",
            address="web-01.example.test",
            exclude_add=["/tmp/***"],
            rsync_extra_arg=["--delete"],
            stdout=out,
        )

        host = HostConfig.objects.get(host="web-01")
        self.assertEqual(host.retention_daily, 5)
        self.assertEqual(host.excludes_add, ["/tmp/***"])
        self.assertEqual(host.rsync_extra_args, ["--delete"])

        effective = DjangoConfigSource().effective_config_for_host("web-01")
        self.assertEqual(effective["retention"]["yearly"], 2)
        self.assertEqual(effective["excludes_effective"], ["/tmp/***"])

    def test_configure_schedule_creates_sql_schedule(self) -> None:
        host = HostConfig.objects.create(host="web-01", address="web-01.example.test")
        out = StringIO()

        call_command(
            "configure_pobsync_schedule",
            host.host,
            cron="15 2 * * *",
            prune=True,
            stdout=out,
        )

        schedule = ScheduleConfig.objects.get(host=host)
        self.assertEqual(schedule.cron_expr, "15 2 * * *")
        self.assertTrue(schedule.prune)