//
use super::*;
use config::{
    server::{Webhook, WebhookUrl},
    BranchName, ForgeAlias, ForgeConfig, ForgeType, GitDir, RepoAlias, RepoBranches, RepoConfig,
    ServerRepoConfig, WebhookAuth, WebhookId,
};
use git::{
    repository::{open::MockOpenRepositoryLike, Direction},
    Generation, GitRemote, MockForgeLike, RepoDetails,
};
use git_next_git::repository::RepositoryLike as _;
use mockall::predicate::eq;
use rand::RngCore;
use std::{
    collections::HashMap,
    path::PathBuf,
    sync::{Arc, Mutex},
};

pub fn has_all_valid_remote_defaults(
    open_repository: &mut MockOpenRepositoryLike,
    repo_details: &RepoDetails,
) {
    has_remote_defaults(
        open_repository,
        HashMap::from([
            (Direction::Push, Some(repo_details.git_remote())),
            (Direction::Fetch, Some(repo_details.git_remote())),
        ]),
    );
}

pub fn has_remote_defaults(
    open_repository: &mut MockOpenRepositoryLike,
    remotes: HashMap<Direction, Option<GitRemote>>,
) {
    remotes.into_iter().for_each(|(direction, remote)| {
        open_repository
            .expect_find_default_remote()
            .with(eq(direction))
            .return_once(|_| remote);
    });
}

#[allow(clippy::type_complexity)]
pub fn open_repository_for_loading_config_from_repo(
    repo_config: &RepoConfig,
) -> (
    MockOpenRepositoryLike,
    Arc<Mutex<Vec<(BranchName, PathBuf)>>>,
) {
    let mut load_config_from_repo_open_repository = MockOpenRepositoryLike::new();
    let read_files = Arc::new(Mutex::new(vec![]));
    let read_files_ref = read_files.clone();
    let branches = repo_config.branches().clone();
    load_config_from_repo_open_repository
        .expect_read_file()
        .return_once(move |branch_name, file_name| {
            let branch_name = branch_name.clone();
            let file_name = file_name.to_path_buf();
            let _ = read_files_ref
                .lock()
                .map(move |mut l| l.push((branch_name, file_name)));
            let contents = format!(
                r#"
                        [branches]
                        main = "{}"
                        next = "{}"
                        dev = "{}"
                        "#,
                branches.main(),
                branches.next(),
                branches.dev()
            );
            Ok(contents)
        });
    let branches = repo_config.branches().clone();
    let remote_branches = vec![branches.main(), branches.next(), branches.dev()];
    load_config_from_repo_open_repository
        .expect_remote_branches()
        .return_once(move || Ok(remote_branches));
    (load_config_from_repo_open_repository, read_files)
}

pub fn a_webhook_auth() -> WebhookAuth {
    WebhookAuth::generate()
}

pub fn repo_branches() -> RepoBranches {
    RepoBranches::new(
        format!("main-{}", a_name()),
        format!("next-{}", a_name()),
        format!("dev-{}", a_name()),
    )
}

pub fn a_forge_alias() -> ForgeAlias {
    ForgeAlias::new(a_name())
}

pub fn a_repo_alias() -> RepoAlias {
    RepoAlias::new(a_name())
}

pub fn a_network() -> kxio::network::MockNetwork {
    kxio::network::MockNetwork::new()
}

pub fn a_webhook_url(
    forge_alias: &ForgeAlias,
    repo_alias: &RepoAlias,
) -> git_next_config::server::WebhookUrl {
    config::server::Webhook::new(a_name()).url(forge_alias, repo_alias)
}

pub fn a_name() -> String {
    use rand::Rng;
    use std::iter;

    fn generate(len: usize) -> String {
        const CHARSET: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        let mut rng = rand::thread_rng();
        let one_char = || CHARSET[rng.gen_range(0..CHARSET.len())] as char;
        iter::repeat_with(one_char).take(len).collect()
    }
    generate(5)
}

pub fn a_webhook_id() -> WebhookId {
    WebhookId::new(a_name())
}

pub fn a_branch_name(prefix: impl Into<String>) -> BranchName {
    BranchName::new(format!("{}-{}", prefix.into(), a_name()))
}

pub fn a_git_dir(fs: &kxio::fs::FileSystem) -> GitDir {
    let dir_name = a_name();
    let dir = fs.base().join(dir_name);
    GitDir::new(dir)
}

pub fn a_forge_config() -> ForgeConfig {
    ForgeConfig::new(
        ForgeType::MockForge,
        a_name(),
        a_name(),
        a_name(),
        Default::default(), // no repos
    )
}

pub fn a_server_repo_config() -> ServerRepoConfig {
    let main = a_branch_name("main").to_string();
    let next = a_branch_name("next").to_string();
    let dev = a_branch_name("dev").to_string();
    ServerRepoConfig::new(
        format!("{}/{}", a_name(), a_name()),
        main.clone(),
        None,
        Some(main),
        Some(next),
        Some(dev),
    )
}

pub fn a_repo_config() -> RepoConfig {
    RepoConfig::new(given::repo_branches(), config::RepoConfigSource::Repo)
}

pub fn a_named_commit(name: impl Into<String>) -> git::Commit {
    git::Commit::new(a_named_commit_sha(name), a_commit_message())
}

pub fn a_commit() -> git::Commit {
    git::Commit::new(a_commit_sha(), a_commit_message())
}

pub fn a_commit_with_message(message: impl Into<git::commit::Message>) -> git::Commit {
    git::Commit::new(a_commit_sha(), message.into())
}

pub fn a_commit_message() -> git::commit::Message {
    git::commit::Message::new(a_name())
}

pub fn a_named_commit_sha(name: impl Into<String>) -> git::commit::Sha {
    git::commit::Sha::new(format!("{}-{}", name.into(), a_name()))
}

pub fn a_commit_sha() -> git::commit::Sha {
    git::commit::Sha::new(a_name())
}

pub fn a_filesystem() -> kxio::fs::FileSystem {
    kxio::fs::temp().unwrap_or_else(|e| panic!("{}", e))
}

pub fn repo_details(fs: &kxio::fs::FileSystem) -> git::RepoDetails {
    let generation = git::Generation::default();
    let repo_alias = a_repo_alias();
    let server_repo_config = a_server_repo_config();
    let forge_alias = a_forge_alias();
    let forge_config = a_forge_config();
    let gitdir = a_git_dir(fs);
    RepoDetails::new(
        generation,
        &repo_alias,
        &server_repo_config,
        &forge_alias,
        &forge_config,
        gitdir,
    )
}

pub fn an_open_repository(
    fs: &kxio::fs::FileSystem,
) -> (
    git::repository::open::MockOpenRepositoryLike,
    git::RepoDetails,
) {
    let open_repository = MockOpenRepositoryLike::new();
    let gitdir = given::a_git_dir(fs);
    let hostname = given::a_hostname();
    let repo_details = given::repo_details(fs)
        .with_gitdir(gitdir)
        .with_hostname(hostname);
    (open_repository, repo_details)
}

pub fn a_message_token() -> MessageToken {
    MessageToken::default()
}

pub fn a_webhook(url: &WebhookUrl) -> Webhook {
    Webhook::new(url.clone().into())
}

pub fn a_forge() -> Box<MockForgeLike> {
    Box::new(MockForgeLike::new())
}

pub fn a_repo_actor(
    repo_details: git::RepoDetails,
    repository_factory: Box<dyn git::repository::RepositoryFactory>,
    forge: Box<dyn git::ForgeLike>,
    net: kxio::network::Network,
) -> (actor::RepoActor, RepoActorLog) {
    let forge_alias = repo_details.forge.forge_alias();
    let repo_alias = &repo_details.repo_alias;
    let webhook_url = given::a_webhook_url(forge_alias, repo_alias);
    let webhook = given::a_webhook(&webhook_url);
    let generation = Generation::default();
    let log = Arc::new(Mutex::new(vec![]));
    let actors_log = log.clone();
    (
        actor::RepoActor::new(
            repo_details,
            forge,
            webhook,
            generation,
            net,
            repository_factory,
            std::time::Duration::from_nanos(1),
        )
        .with_log(actors_log),
        log,
    )
}

pub fn a_hostname() -> config::Hostname {
    config::Hostname::new(given::a_name())
}

pub fn a_registered_webhook() -> RegisteredWebhook {
    RegisteredWebhook::new(given::a_webhook_id(), given::a_webhook_auth())
}