"""Unit tests for devx.utils.vault."""

from __future__ import annotations

from pathlib import Path
from unittest.mock import MagicMock, patch

from devx.utils.vault import (
    decrypt_file,
    encrypt_file,
    is_encrypted,
    load_vault_yaml,
    save_vault_yaml,
)


class TestIsEncrypted:
    def test_encrypted_file(self, tmp_path: Path) -> None:
        f = tmp_path / "secret.yml"
        f.write_text("$ANSIBLE_VAULT;1.1;AES256\n9382928...\n")
        assert is_encrypted(f) is True

    def test_plain_file(self, tmp_path: Path) -> None:
        f = tmp_path / "plain.yml"
        f.write_text("key: value\n")
        assert is_encrypted(f) is False


class TestLoadVaultYaml:
    def test_plain_yaml_no_vault_pass(self, tmp_path: Path) -> None:
        f = tmp_path / "data.yml"
        f.write_text("key: value\nlist:\n  - a\n  - b\n")
        data = load_vault_yaml(f)
        assert data == {"key": "value", "list": ["a", "b"]}

    def test_empty_file(self, tmp_path: Path) -> None:
        f = tmp_path / "empty.yml"
        f.write_text("")
        data = load_vault_yaml(f)
        assert data == {}

    def test_vault_pass_not_exists(self, tmp_path: Path) -> None:
        f = tmp_path / "data.yml"
        f.write_text("key: value\n")
        data = load_vault_yaml(f, vault_pass=tmp_path / "nonexistent")
        assert data == {"key": "value"}

    @patch("devx.utils.vault.subprocess.run")
    def test_encrypted_file_success(self, mock_run: MagicMock, tmp_path: Path) -> None:
        f = tmp_path / "secret.yml"
        f.write_text("$ANSIBLE_VAULT\n...")
        vp = tmp_path / "vault-password"
        vp.write_text("secret")

        mock_run.return_value = MagicMock(returncode=0, stdout="key: decrypted\n", stderr="")
        data = load_vault_yaml(f, vault_pass=vp)
        assert data == {"key": "decrypted"}

    @patch("devx.utils.vault.subprocess.run")
    def test_not_vault_encrypted_fallback(self, mock_run: MagicMock, tmp_path: Path) -> None:
        f = tmp_path / "plain.yml"
        f.write_text("key: value\n")
        vp = tmp_path / "vault-password"
        vp.write_text("secret")

        mock_run.return_value = MagicMock(returncode=1, stdout="", stderr="is not vault encrypted")
        data = load_vault_yaml(f, vault_pass=vp)
        assert data == {"key": "value"}


class TestSaveVaultYaml:
    def test_save_plain(self, tmp_path: Path) -> None:
        f = tmp_path / "output.yml"
        save_vault_yaml(f, {"key": "value"})
        content = f.read_text()
        assert "key: value" in content

    def test_save_with_vault_pass_not_exists(self, tmp_path: Path) -> None:
        f = tmp_path / "output.yml"
        vp = tmp_path / "nonexistent"
        save_vault_yaml(f, {"key": "value"}, vault_pass=vp)
        # Should save as plain YAML
        content = f.read_text()
        assert "key: value" in content
        assert "$ANSIBLE_VAULT" not in content

    @patch("devx.utils.vault.subprocess.run")
    def test_save_and_encrypt(self, mock_run: MagicMock, tmp_path: Path) -> None:
        f = tmp_path / "output.yml"
        vp = tmp_path / "vault-password"
        vp.write_text("secret")

        save_vault_yaml(f, {"key": "value"}, vault_pass=vp)
        # File should be written
        assert f.exists()
        # ansible-vault encrypt should be called
        mock_run.assert_called_once()
        cmd = mock_run.call_args[0][0]
        assert "ansible-vault" in cmd
        assert "encrypt" in cmd


class TestEncryptFile:
    @patch("devx.utils.vault.subprocess.run")
    def test_calls_ansible_vault(self, mock_run: MagicMock, tmp_path: Path) -> None:
        f = tmp_path / "file.yml"
        f.write_text("key: value")
        vp = tmp_path / "vault-password"
        vp.write_text("secret")

        encrypt_file(f, vp)
        mock_run.assert_called_once()
        cmd = mock_run.call_args[0][0]
        assert "ansible-vault" in cmd
        assert "encrypt" in cmd
        assert str(f) in cmd
        assert str(vp) in cmd


class TestDecryptFile:
    @patch("devx.utils.vault.subprocess.run")
    def test_calls_ansible_vault(self, mock_run: MagicMock, tmp_path: Path) -> None:
        f = tmp_path / "file.yml"
        f.write_text("$ANSIBLE_VAULT\n...")
        vp = tmp_path / "vault-password"
        vp.write_text("secret")

        decrypt_file(f, vp)
        mock_run.assert_called_once()
        cmd = mock_run.call_args[0][0]
        assert "ansible-vault" in cmd
        assert "decrypt" in cmd
        assert str(f) in cmd
        assert str(vp) in cmd