mod common;

use gitks::bare::GitBare;
use gitks::error::GitError;
use gitks::pb::RepositoryHeader;

#[test]
fn test_from_header_valid() {
    let (_dir, gb) = common::setup_bare_repo();
    let parent = gb.bare_dir.parent().unwrap().to_string_lossy().into_owned();
    let name = gb
        .bare_dir
        .file_name()
        .unwrap()
        .to_string_lossy()
        .into_owned();

    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: parent,
        relative_path: name,
        ..Default::default()
    });
    assert!(result.is_ok());
}

#[test]
fn test_from_header_empty_path() {
    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: String::new(),
        relative_path: String::new(),
        ..Default::default()
    });
    assert!(result.is_err());
}

#[test]
fn test_from_header_relative_storage_path() {
    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: "relative/path".into(),
        relative_path: String::new(),
        ..Default::default()
    });
    assert!(result.is_err());
    match result.unwrap_err() {
        GitError::InvalidArgument(_) => {}
        other => panic!("expected InvalidArgument, got: {:?}", other),
    }
}

#[test]
fn test_from_header_relative_path_without_storage() {
    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: String::new(),
        relative_path: "some/repo.git".into(),
        ..Default::default()
    });
    assert!(result.is_err());
}

#[test]
fn test_from_header_nonexistent_repo() {
    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: "/tmp".into(),
        relative_path: "nonexistent_repo_12345".into(),
        ..Default::default()
    });
    assert!(result.is_err());
    match result.unwrap_err() {
        GitError::RepoNotFound => {}
        other => panic!("expected RepoNotFound, got: {:?}", other),
    }
}

#[test]
fn test_from_header_path_traversal() {
    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: "/tmp".into(),
        relative_path: "../../../etc".into(),
        ..Default::default()
    });
    assert!(result.is_err());
    match result.unwrap_err() {
        GitError::InvalidArgument(msg) => {
            assert!(
                msg.contains("traversal"),
                "should detect traversal, got: {}",
                msg
            );
        }
        other => panic!("expected InvalidArgument, got: {:?}", other),
    }
}

#[test]
fn test_from_header_not_a_directory() {
    let dir = tempfile::tempdir().unwrap();
    let file_path = dir.path().join("not_a_dir.txt");
    std::fs::write(&file_path, "content").unwrap();

    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: dir.path().to_string_lossy().into_owned(),
        relative_path: "not_a_dir.txt".into(),
        ..Default::default()
    });
    assert!(result.is_err());
}

#[test]
fn test_from_header_dir_without_head() {
    let dir = tempfile::tempdir().unwrap();
    let subdir = dir.path().join("empty_dir");
    std::fs::create_dir(&subdir).unwrap();

    let result = GitBare::from_repository_header(&RepositoryHeader {
        storage_path: dir.path().to_string_lossy().into_owned(),
        relative_path: "empty_dir".into(),
        ..Default::default()
    });
    assert!(result.is_err());
    match result.unwrap_err() {
        GitError::NotBareRepository => {}
        other => panic!("expected NotBareRepository, got: {:?}", other),
    }
}

#[test]
fn test_object_format() {
    let (_dir, gb) = common::setup_bare_repo();
    let format = gb.object_format();
    assert_eq!(format, gitks::pb::ObjectFormat::Sha1);
}

#[test]
fn test_oid_to_pb() {
    let (_dir, gb) = common::setup_bare_repo();
    let oid = gb.oid_to_pb("da39a3ee5e6b4b0d3255bfef95601890afd80709");
    assert_eq!(oid.hex, "da39a3ee5e6b4b0d3255bfef95601890afd80709");
    assert_eq!(oid.value.len(), 20);
    assert_eq!(oid.format, gitks::pb::ObjectFormat::Sha1 as i32);
}

#[test]
fn test_oid_to_pb_invalid_hex() {
    let (_dir, gb) = common::setup_bare_repo();
    let oid = gb.oid_to_pb("not_hex");
    // Should return default (empty) bytes on invalid hex
    assert!(oid.value.is_empty());
    assert_eq!(oid.hex, "not_hex");
}