from pathlib import Path
import toml
from click.testing import CliRunner
from ctf.commands import basic_group

TEST_ENV = Path("tests/env")

def test_basic_test_cli():
    """
    Verifies that 'basic test' runs successfully and outputs 'hello from test'.
    """
    runner = CliRunner()
    result = runner.invoke(basic_group, ["test"])
    assert result.exit_code == 0
    assert "hello from test" in result.output

def test_basic_greet_cli():
    """
    Verifies that 'basic greet' runs successfully and greets the name argument.
    """
    runner = CliRunner()
    result = runner.invoke(basic_group, ["greet", "Alice"])
    assert result.exit_code == 0
    assert "hello Alice" in result.output

def test_basic_set_flag_format_cli():
    """
    Verifies that 'basic set-flag-format' CLI command writes the pattern to config.toml.
    """
    from ctf.utils import load_config
    
    runner = CliRunner()
    config_file = Path("/home/venus/code/ctf/config.toml")
    
    # Save the original config to restore later
    original_config = load_config(str(config_file))
    
    try:
        result = runner.invoke(basic_group, ["set-flag-format", "TEST_FLAG{[a-z]+}"])
        assert result.exit_code == 0
        assert "Flag format set to" in result.output
        
        # Verify it was written to config.toml
        updated_config = load_config(str(config_file))
        assert updated_config["Competition"]["flag_format"] == "TEST_FLAG{[a-z]+}"
    finally:
        # Restore original config
        from ctf.utils import write_config
        write_config(original_config, str(config_file))

def test_basic_set_flag_format_original_option_cli():
    """
    Verifies that 'basic set-flag-format' with --original/-o option prompts for selection and writes it.
    """
    from ctf.utils import load_config
    
    runner = CliRunner()
    config_file = Path("/home/venus/code/ctf/config.toml")
    
    # Save the original config to restore later
    original_config = load_config(str(config_file))
    
    try:
        # We pass -o SKY-1111-000 and input "2" to choose the second suggested pattern
        result = runner.invoke(basic_group, ["set-flag-format", "-o", "SKY-1111-000"], input="2\n")
        assert result.exit_code == 0
        assert "Suggested regex patterns:" in result.output
        assert "Select a pattern index" in result.output
        assert "Flag format set to" in result.output
        
        # Verify it was written to config.toml
        updated_config = load_config(str(config_file))
        selected_pattern = updated_config["Competition"]["flag_format"]
        assert selected_pattern.startswith("^") and selected_pattern.endswith("$")
    finally:
        # Restore original config
        from ctf.utils import write_config
        write_config(original_config, str(config_file))

def test_basic_set_flag_format_validation_cli():
    """
    Verifies validation rules:
    - Specifying both PATTERN and --original should fail.
    - Specifying neither PATTERN nor --original should fail.
    - Specifying empty/whitespace-only original flag should fail.
    """
    runner = CliRunner()
    
    # Both specified
    result1 = runner.invoke(basic_group, ["set-flag-format", "PAT", "-o", "SKY-1111-000"])
    assert result1.exit_code != 0
    assert "Cannot specify both PATTERN and --original/-o option." in result1.output
    
    # Neither specified
    result2 = runner.invoke(basic_group, ["set-flag-format"])
    assert result2.exit_code != 0
    assert "Either PATTERN positional argument or --original/-o option must be specified." in result2.output

    # Empty original
    result3 = runner.invoke(basic_group, ["set-flag-format", "-o", "   "])
    assert result3.exit_code != 0
    assert "Original flag cannot be empty or whitespace only." in result3.output