solv 0.21.0

#![warn(unused_extern_crates)]
#![allow(clippy::missing_errors_doc)]
pub mod error;
pub mod info;
pub mod json;
pub mod nuget;
pub mod ux;
pub mod validate;

use solp::msbuild::{self};
use solp::{Consume, api::Solution, msbuild::Project};
use std::path::{Path, PathBuf};
use url::Url;

/// Returns the parent directory of the given path.
///
/// If the path has no parent (e.g., it's a root or empty path), returns an empty path.
///
/// # Arguments
///
/// * `path` - A string slice that holds the path to get the parent of
///
/// # Returns
///
/// A reference to the parent path, or an empty path if there is no parent
#[must_use]
pub fn parent_of(path: &str) -> &Path {
    Path::new(path).parent().unwrap_or_else(|| Path::new(""))
}

#[must_use]
pub fn try_make_local_path(dir: &Path, relative: &str) -> Option<PathBuf> {
    // We don't need Uri so if parsed successfully throw it away
    Url::parse(relative).err()?;
    Some(make_path(dir, relative))
}

#[must_use]
#[cfg(not(target_os = "windows"))]
pub fn make_path(dir: &Path, relative: &str) -> PathBuf {
    // Converts all possible Windows paths into Unix ones
    relative
        .split('\\')
        .fold(PathBuf::from(&dir), |pb, s| pb.join(s))
}

#[must_use]
#[cfg(target_os = "windows")]
fn make_path(dir: &Path, relative: &str) -> PathBuf {
    PathBuf::from(&dir).join(relative)
}

#[must_use]
pub fn calculate_percent(value: i32, total: i32) -> f64 {
    if total == 0 {
        0_f64
    } else {
        (f64::from(value) / f64::from(total)) * 100_f64
    }
}

/// Represents a MSBuild project with a full path to the project file.
pub struct MsbuildProject {
    pub project: Option<msbuild::Project>,
    pub path: PathBuf,
}

#[must_use]
pub fn collect_msbuild_projects(solution: &Solution) -> Vec<MsbuildProject> {
    let dir = parent_of(solution.path);

    solution
        .iterate_projects_without_web_sites()
        .filter_map(|p| try_make_local_path(dir, p.path_or_uri))
        .filter_map(|path| match Project::from_path(&path) {
            Ok(project) => Some(MsbuildProject {
                path,
                project: Some(project),
            }),
            Err(e) => {
                if cfg!(debug_assertions) {
                    let p = path.to_str().unwrap_or_default();
                    println!("{p}: {e:?}");
                }
                None
            }
        })
        .collect()
}

#[cfg(test)]
#[cfg(not(target_os = "windows"))]
pub mod tests {
    use super::*;
    use test_case::test_case;

    #[test_case("/base", "x", "/base/x")]
    #[test_case("/base", r"x\y", "/base/x/y")]
    #[test_case("/base", "x/y", "/base/x/y")]
    fn make_path_tests(base: &str, path: &str, expected: &str) {
        // Arrange
        let d = Path::new(base);

        // Act
        let actual = make_path(d, path);

        // Assert
        assert_eq!(actual.to_str().unwrap(), expected);
    }

    #[test_case("/base", "x", Some(PathBuf::from("/base/x")))]
    #[test_case("/base", "http://localhost/a.csproj", None)]
    fn try_make_local_path_tests(base: &str, path: &str, expected: Option<PathBuf>) {
        // Arrange
        let d = Path::new(base);

        // Act
        let actual = try_make_local_path(d, path);

        // Assert
        assert_eq!(actual, expected);
    }

    #[test_case(1, 100, 1.0)]
    #[test_case(0, 100, 0.0)]
    #[test_case(100, 100, 100.0)]
    #[test_case(50, 100, 50.0)]
    #[test_case(20, 100, 20.0)]
    fn calculate_percent_tests(value: i32, total: i32, expected: f64) {
        // Arrange

        // Act
        let actual = calculate_percent(value, total);

        // Assert
        assert_eq!(actual, expected);
    }

    #[test]
    fn test_parent_of_absolute_path() {
        // Arrange
        let path = "/home/user/path";
        let expected = Path::new("/home/user");

        // Act
        let actual = parent_of(path);

        // Assert
        assert_eq!(actual, expected);
    }

    #[test]
    fn test_parent_of_relative_path() {
        // Arrange
        let path = "file.txt";
        let expected = Path::new("");

        // Act
        let actual = parent_of(path);

        // Assert
        assert_eq!(actual, expected);
    }

    #[test]
    fn test_parent_of_empty_string() {
        // Arrange
        let path = "";
        let expected = Path::new("");

        // Act
        let actual = parent_of(path);

        // Assert
        assert_eq!(actual, expected);
    }
}