from __future__ import annotations

import json

from typer.testing import CliRunner

from {{ cookiecutter.package_name }}.cli.app import app
from {{ cookiecutter.package_name }}.config.paths import ENV_CONFIG_VAR

runner = CliRunner()


def test_config_show_success_defaults() -> None:
    result = runner.invoke(app, ["config", "show"])

    assert result.exit_code == 0
    payload = json.loads(result.output)
    assert payload["source"] == "<defaults>"
    assert payload["config"]["app"]["greeting"] == "Hello"


def test_config_init_create_and_overwrite(tmp_path) -> None:
    path = tmp_path / "config.toml"

    create_result = runner.invoke(app, ["config", "init", "--path", str(path)])
    assert create_result.exit_code == 0
    assert path.exists()

    conflict_result = runner.invoke(app, ["config", "init", "--path", str(path)])
    assert conflict_result.exit_code == 1
    assert "Config already exists" in conflict_result.output

    overwrite_result = runner.invoke(
        app,
        ["config", "init", "--path", str(path), "--overwrite"],
    )
    assert overwrite_result.exit_code == 0


def test_config_show_missing_env_file_exits_with_code_1(tmp_path, monkeypatch) -> None:
    missing = tmp_path / "missing.toml"
    monkeypatch.setenv(ENV_CONFIG_VAR, str(missing))

    result = runner.invoke(app, ["config", "show"])

    assert result.exit_code == 1
    assert "Config file not found" in result.output


def test_config_show_invalid_config_exits_with_code_1(tmp_path, monkeypatch) -> None:
    config_path = tmp_path / "config.toml"
    config_path.write_text('unknown = "value"\n')
    monkeypatch.setenv(ENV_CONFIG_VAR, str(config_path))

    result = runner.invoke(app, ["config", "show"])

    assert result.exit_code == 1
    assert "Extra inputs are not permitted" in result.output


def test_hello_cli_override_precedence(tmp_path, monkeypatch) -> None:
    config_path = tmp_path / "config.toml"
    config_path.write_text('[app]\ngreeting = "Hi"\n\n[database]\npath = "/tmp/example.db"\n')
    monkeypatch.setenv(ENV_CONFIG_VAR, str(config_path))

    from_config = runner.invoke(app, ["hello", "say", "--name", "Ada"])
    assert from_config.exit_code == 0
    assert "Hi, Ada!" in from_config.output

    from_cli = runner.invoke(
        app,
        ["hello", "say", "--name", "Ada", "--greeting", "Yo"],
    )
    assert from_cli.exit_code == 0
    assert "Yo, Ada!" in from_cli.output