use assert_cmd::Command;
use tempfile::TempDir;
use std::fs;

#[test] fn test_cli_help() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--help").assert().success();
}

#[test] fn test_cli_version() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--version").assert().success();
}

#[test] fn test_cli_format_short() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--format").arg("short").assert().success();
}

#[test] fn test_cli_format_json() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--format").arg("json").assert().success();
}

#[test] fn test_cli_type_flag() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--type").arg("feat").assert().success();
}

#[test] fn test_cli_scope_flag() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--scope").arg("auth").assert().success();
}

#[test] fn test_cli_dry_run() {
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.arg("--dry-run").assert().success();
}

#[test] fn test_non_git_directory() {
    let temp_dir = TempDir::new().unwrap();
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.current_dir(temp_dir.path()).assert().failure();
}

#[test] fn test_git_repository_with_changes() {
    let temp_dir = TempDir::new().unwrap();
    fs::write(temp_dir.path().join("Cargo.toml"), "[package]\nname = \"test\"").unwrap();
    fs::write(temp_dir.path().join("main.rs"), "fn main() {}").unwrap();
    std::process::Command::new("git").args(&["init"]).current_dir(temp_dir.path()).output().expect("Failed to run git init");
    let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
    cmd.current_dir(temp_dir.path()).arg("--format").arg("compact").assert().success();
}

#[test] fn test_all_format_options() {
    for format in &["short", "verbose", "compact", "json"] {
        let mut cmd = Command::cargo_bin("git-commit-prefix-gen").unwrap();
        cmd.arg("--format").arg(format).assert().success();
    }
}