"""Unit tests for utils.inventory.groups."""

from __future__ import annotations

import textwrap
import unittest
from pathlib import Path
from tempfile import TemporaryDirectory

from utils.inventory.groups import inventory_groups, inventory_has_group


class TestInventoryGroups(unittest.TestCase):
    def setUp(self) -> None:
        self.tmp = TemporaryDirectory()
        self.addCleanup(self.tmp.cleanup)
        self.root = Path(self.tmp.name)

    def _write(self, name: str, body: str) -> str:
        path = self.root / name
        path.write_text(textwrap.dedent(body).lstrip("\n"), encoding="utf-8")
        return str(path)

    def test_yaml_lists_top_level_and_nested_children(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              children:
                web-app-cst-store:
                  children:
                    nested-group:
                      hosts: {}
                  hosts:
                    localhost: {}
            """,
        )
        self.assertEqual(
            {"all", "web-app-cst-store", "nested-group"}, inventory_groups(path)
        )

    def test_yaml_hosts_and_vars_are_no_groups(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              hosts:
                web-app-cst-host: {}
              vars:
                applications:
                  web-app-cst-store: {custom: true}
            """,
        )
        self.assertEqual({"all"}, inventory_groups(path))

    def test_ini_lists_sections_and_children(self) -> None:
        path = self._write(
            "hosts",
            """
            # [comment-group]
            [web-app-cst-store]
            localhost

            [parent:children]
            child-group

            [parent:vars]
            key=value
            """,
        )
        self.assertEqual(
            {"web-app-cst-store", "parent", "child-group"}, inventory_groups(path)
        )

    def test_yaml_with_ansible_tags_lists_its_groups(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              hosts:
                localhost:
                  motd: !unsafe '{{ literal }}'
                  secret: !vault |
                    $ANSIBLE_VAULT;1.1;AES256
                    6162
              children:
                web-app-cst-store:
                  hosts: {}
            """,
        )
        self.assertEqual({"all", "web-app-cst-store"}, inventory_groups(path))

    def test_missing_yaml_inventory_raises(self) -> None:
        with self.assertRaises(FileNotFoundError):
            inventory_groups(str(self.root / "absent.yml"))


class TestInventoryHasGroupYaml(unittest.TestCase):
    def setUp(self) -> None:
        self.tmp = TemporaryDirectory()
        self.addCleanup(self.tmp.cleanup)
        self.root = Path(self.tmp.name)

    def _write(self, name: str, body: str) -> str:
        path = self.root / name
        path.write_text(textwrap.dedent(body).lstrip("\n"), encoding="utf-8")
        return str(path)

    def test_yaml_finds_nested_group(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              children:
                svc-swarm-node:
                  hosts:
                    swarm-mgr-01: {}
                svc-swarm-manager:
                  hosts:
                    swarm-mgr-01: {}
            """,
        )
        self.assertTrue(inventory_has_group(path, "svc-swarm-manager"))
        self.assertTrue(inventory_has_group(path, "svc-swarm-node"))

    def test_yaml_missing_group_returns_false(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              children:
                svc-swarm-node:
                  hosts:
                    swarm-mgr-01: {}
            """,
        )
        self.assertFalse(inventory_has_group(path, "svc-swarm-manager"))

    def test_yaml_skips_scalar_key(self) -> None:
        path = self._write(
            "inv.yml",
            """
            all:
              children:
                some-key: just-a-string
                actual-group:
                  hosts: {}
            """,
        )
        self.assertFalse(inventory_has_group(path, "some-key"))
        self.assertTrue(inventory_has_group(path, "actual-group"))


class TestInventoryHasGroupIni(unittest.TestCase):
    def setUp(self) -> None:
        self.tmp = TemporaryDirectory()
        self.addCleanup(self.tmp.cleanup)
        self.root = Path(self.tmp.name)

    def _write(self, name: str, body: str) -> str:
        path = self.root / name
        path.write_text(textwrap.dedent(body).lstrip("\n"), encoding="utf-8")
        return str(path)

    def test_ini_finds_section_header(self) -> None:
        path = self._write(
            "hosts",
            """
            [svc-swarm-manager]
            mgr-01

            [web-app-mediawiki]
            mgr-01
            """,
        )
        self.assertTrue(inventory_has_group(path, "svc-swarm-manager"))
        self.assertTrue(inventory_has_group(path, "web-app-mediawiki"))

    def test_ini_finds_host_in_section(self) -> None:
        path = self._write(
            "hosts",
            """
            [grp]
            host-a, host-b host-c
            """,
        )
        self.assertTrue(inventory_has_group(path, "host-a"))
        self.assertTrue(inventory_has_group(path, "host-b"))
        self.assertTrue(inventory_has_group(path, "host-c"))

    def test_ini_skips_comments(self) -> None:
        path = self._write(
            "hosts",
            """
            # [comment-group]
            ; [also-comment]
            [real-group]
            mgr-01
            """,
        )
        self.assertFalse(inventory_has_group(path, "comment-group"))
        self.assertFalse(inventory_has_group(path, "also-comment"))
        self.assertTrue(inventory_has_group(path, "real-group"))

    def test_ini_missing_group_returns_false(self) -> None:
        path = self._write(
            "hosts",
            """
            [other]
            mgr-01
            """,
        )
        self.assertFalse(inventory_has_group(path, "missing"))


if __name__ == "__main__":
    unittest.main()