use assert2::let_assert;
use gix::remote::Direction;
use pretty_assertions::assert_eq;

use crate::{server::gitforge::tests::common /* server::gitforge::tests::common */};

use kxio::fs;

use super::*;

type Result<T> = core::result::Result<T, Box<dyn std::error::Error>>;

#[test]
fn load_should_parse_server_config() -> Result<()> {
    let fs = fs::temp()?;
    fs.file_write(
            &fs.base().join("git-next-server.toml"),
            r#"
            [webhook]
            url = "http://localhost:9909/webhook"

            [storage]
            path = "/opt/git-next/data"

            [forge.default]
            forge_type = "MockForge"
            hostname = "git.example.net"
            user = "Bob"
            token = "API-Token"

            [forge.default.repos]
            hello = { repo = "user/hello", branch = "main", gitdir = "/opt/git/user/hello.git" }
            world = { repo = "user/world", branch = "master", main = "main", next = "next", dev = "dev" }

            [forge.default.repos.sam]
            repo = "user/sam"
            branch = "main"
            main = "master"
            next = "upcoming"
            dev = "sam-dev"
        "#,
        )
    ?;
    let_assert!(Ok(config) = ServerConfig::load(&fs));
    let expected = ServerConfig {
        webhook: Webhook {
            url: "http://localhost:9909/webhook".to_string(),
        },
        storage: ServerStorage {
            path: "/opt/git-next/data".into(),
        },
        forge: HashMap::from([(
            "default".to_string(),
            ForgeConfig {
                forge_type: ForgeType::MockForge,
                hostname: "git.example.net".to_string(),
                user: "Bob".to_string(),
                token: "API-Token".to_string(),
                repos: HashMap::from([
                    (
                        "hello".to_string(),
                        ServerRepoConfig {
                            repo: "user/hello".to_string(),
                            branch: "main".to_string(),
                            gitdir: Some("/opt/git/user/hello.git".into()),
                            main: None,
                            next: None,
                            dev: None,
                        },
                    ),
                    (
                        "world".to_string(),
                        ServerRepoConfig {
                            repo: "user/world".to_string(),
                            branch: "master".to_string(),
                            gitdir: None,
                            main: Some("main".to_string()),
                            next: Some("next".to_string()),
                            dev: Some("dev".to_string()),
                        },
                    ),
                    (
                        "sam".to_string(),
                        ServerRepoConfig {
                            repo: "user/sam".to_string(),
                            branch: "main".to_string(),
                            gitdir: None,
                            main: Some("master".to_string()),
                            next: Some("upcoming".to_string()),
                            dev: Some("sam-dev".to_string()),
                        },
                    ),
                ]),
            },
        )]),
    };
    assert_eq!(config, expected, "ServerConfig");

    if let Some(forge) = config.forge.get("world") {
        if let Some(repo) = forge.repos.get("sam") {
            let repo_config = repo.repo_config();
            let expected = Some(RepoConfig {
                branches: RepoBranches {
                    main: "master".to_string(),
                    next: "upcoming".to_string(),
                    dev: "sam-dev".to_string(),
                },
            });
            assert_eq!(repo_config, expected, "RepoConfig");
        }
    }

    Ok(())
}

#[test]
fn test_repo_config_load() -> Result<()> {
    let toml = r#"
            [branches]
            main = "main"
            next = "next"
            dev = "dev"

            [options]
        "#;
    let config = RepoConfig::load(toml)?;

    assert_eq!(
        config,
        RepoConfig {
            branches: RepoBranches {
                main: "main".to_string(),
                next: "next".to_string(),
                dev: "dev".to_string(),
            },
        }
    );

    Ok(())
}

#[test]
fn gitdir_should_display_as_pathbuf() {
    //given
    let gitdir = GitDir::from("foo/dir");
    //when
    let result = format!("{}", gitdir);
    //then
    assert_eq!(result, "foo/dir");
}

#[test]
// NOTE: this test assumes it is being run in a cloned worktree from the project's home repo:
// git.kemitix.net:kemitix/git-next
// If the default push remote is something else, then this test will fail
fn repo_details_find_default_push_remote_finds_correct_remote() -> Result<()> {
    let cwd = std::env::current_dir().map_err(RepoValidationError::Io)?;
    let mut repo_details = common::repo_details(
        1,
        common::forge_details(1, ForgeType::MockForge),
        None,
        GitDir::new(&cwd), // Server GitDir - should be ignored
    );
    repo_details.forge.hostname = Hostname("git.kemitix.net".to_string());
    repo_details.repo_path = RepoPath("kemitix/git-next".to_string());
    let gitdir = &repo_details.gitdir;
    let found_git_remote = gitdir.find_default_remote(Direction::Push)?;
    let config_git_remote = repo_details.git_remote();

    assert_eq!(
        found_git_remote, config_git_remote,
        "Default Push Remote must match config"
    );

    Ok(())
}

#[test]
fn gitdir_validate_should_pass_a_valid_git_repo() -> Result<()> {
    let cwd = std::env::current_dir().map_err(RepoValidationError::Io)?;
    let mut repo_details = common::repo_details(
        1,
        common::forge_details(1, ForgeType::MockForge),
        None,
        GitDir::new(&cwd), // Server GitDir - should be ignored
    );
    repo_details.forge.hostname = Hostname("git.kemitix.net".to_string());
    repo_details.repo_path = RepoPath("kemitix/git-next".to_string());
    let git_dir = &repo_details.gitdir;
    git_dir.validate(&repo_details)?;

    Ok(())
}

#[test]
fn gitdir_validate_should_fail_a_non_git_dir() {
    let_assert!(Ok(fs) = kxio::fs::temp());
    let cwd = fs.base();
    let repo_details = common::repo_details(
        1,
        common::forge_details(1, ForgeType::MockForge),
        None,
        GitDir::new(cwd), // Server GitDir - should be ignored
    );
    let git_dir = &repo_details.gitdir;
    let_assert!(Err(_) = git_dir.validate(&repo_details));
}

#[test]
fn gitdir_validate_should_fail_a_git_repo_with_wrong_remote() {
    let_assert!(Ok(cwd) = std::env::current_dir().map_err(RepoValidationError::Io));
    let mut repo_details = common::repo_details(
        1,
        common::forge_details(1, ForgeType::MockForge),
        None,
        GitDir::new(&cwd), // Server GitDir - should be ignored
    );
    repo_details.forge.hostname = Hostname("localhost".to_string());
    repo_details.repo_path = RepoPath("hello/world".to_string());
    let git_dir = &repo_details.gitdir;
    let_assert!(Err(_) = git_dir.validate(&repo_details));
}

#[test]
fn git_remote_to_string_is_as_expected() {
    let git_remote = GitRemote::new(Hostname("foo".to_string()), RepoPath("bar".to_string()));
    let as_string = git_remote.to_string();

    assert_eq!(as_string, "foo:bar");
}