bmrk 0.2.2

use anyhow::Result;
use std::process::Command;

/// Open an external program with the given path
#[allow(dead_code)]
#[cfg(unix)]
pub fn open_external_program(program: &str, path: &str) -> Result<()> {
    // Unix: use sh shell with proper TTY handling
    // Properly quote the path to handle spaces and special characters
    let shell_cmd = format!(
        "{} '{}' < /dev/tty > /dev/tty 2> /dev/tty",
        program,
        path.replace("'", "'\\''")
    );

    Command::new("sh").arg("-c").arg(&shell_cmd).status()?;

    Ok(())
}

#[allow(dead_code)]
#[cfg(windows)]
pub fn open_external_program(program: &str, path: &str) -> Result<()> {
    // On Windows, use cmd /C to handle .exe, .cmd, .bat files
    // This allows VS Code (code.cmd) and other script-based programs to work

    if program.contains("explorer") || program.contains("start") {
        // File manager: use cmd /C start to open without waiting
        Command::new("cmd")
            .args(["/C", "start", "", path])
            .spawn()?; // spawn instead of status to avoid waiting
    } else {
        // Editor or other program: use cmd /C to support scripts (.cmd, .bat)
        // Quote the path to handle spaces
        let quoted_path = if path.contains(' ') {
            format!("\"{}\"", path)
        } else {
            path.to_string()
        };

        Command::new("cmd")
            .args(["/C", program, &quoted_path])
            .status()?;
    }

    Ok(())
}

/// Check if a path is absolute according to platform conventions
#[cfg(unix)]
pub fn is_absolute_path(path: &str) -> bool {
    // Unix: starts with / or . (relative indicator)
    path.starts_with('/') || path.starts_with('.')
}

#[cfg(windows)]
pub fn is_absolute_path(path: &str) -> bool {
    // Windows: drive-letter paths (C:\) or UNC paths (\\server\share).
    // A path that merely contains '\' (e.g. "subdir\child") is NOT absolute.
    path.len() >= 2
        && ((path.chars().nth(1) == Some(':')) // C:\, D:\
            || path.starts_with("\\\\")) // \\server\share
}

/// Normalize path separators for the current platform
#[cfg(unix)]
#[cfg_attr(not(test), allow(dead_code))]
pub fn normalize_path_separator(path: &str) -> String {
    // Unix: keep as-is (forward slashes)
    path.to_string()
}

#[cfg(windows)]
#[cfg_attr(not(test), allow(dead_code))]
pub fn normalize_path_separator(path: &str) -> String {
    // Windows: convert forward slashes to backslashes
    path.replace('/', "\\")
}

/// Canonicalize path and normalize for display
/// On Windows, removes the \\?\ prefix if present
pub fn canonicalize_and_normalize(
    path: &std::path::Path,
) -> Result<std::path::PathBuf, std::io::Error> {
    let canonical = path.canonicalize()?;

    #[cfg(windows)]
    {
        // On Windows, remove the \\?\ prefix if present
        let path_str = canonical.to_string_lossy();
        if let Some(normalized) = path_str.strip_prefix("\\\\?\\") {
            // Remove \\?\ prefix
            return Ok(std::path::PathBuf::from(normalized));
        }
    }

    Ok(canonical)
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_is_absolute_path() {
        #[cfg(unix)]
        {
            assert!(is_absolute_path("/home/user"));
            assert!(is_absolute_path("./relative"));
            assert!(is_absolute_path("../parent"));
            assert!(!is_absolute_path("relative"));
            assert!(!is_absolute_path("dir/subdir"));
        }

        #[cfg(windows)]
        {
            assert!(is_absolute_path("C:\\Users\\user"));
            assert!(is_absolute_path("D:\\Projects"));
            assert!(is_absolute_path("\\\\server\\share"));
            assert!(!is_absolute_path("relative\\path")); // backslash alone does not make it absolute
            assert!(!is_absolute_path("subdir\\child"));
            assert!(!is_absolute_path("relative"));
        }
    }

    #[test]
    fn test_normalize_path_separator() {
        #[cfg(unix)]
        {
            assert_eq!(normalize_path_separator("path/to/file"), "path/to/file");
            assert_eq!(normalize_path_separator("path\\to\\file"), "path\\to\\file");
        }

        #[cfg(windows)]
        {
            assert_eq!(normalize_path_separator("path/to/file"), "path\\to\\file");
            assert_eq!(normalize_path_separator("path\\to\\file"), "path\\to\\file");
        }
    }
}