use ::session::Session;
use export::http::{Json, Path, State};
use export::rest::AppResponseData;

use crate::errors::{ApiError, GitApiError};
use crate::handler::{RepoPath, require_writer};
use crate::service::GitService;
use crate::service::archives::{ArchiveOptionsDto, ArchiveResultDto};

#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Deserialize, utoipa::ToSchema)]
#[serde(rename_all = "snake_case")]
pub enum ArchiveFormatDto {
    Tar,
    TarGz,
    TarBz2,
    Zip,
}

impl From<ArchiveFormatDto> for crate::rpcgit::archive::types::ArchiveFormat {
    fn from(v: ArchiveFormatDto) -> Self {
        match v {
            ArchiveFormatDto::Tar => crate::rpcgit::archive::types::ArchiveFormat::Tar,
            ArchiveFormatDto::TarGz => crate::rpcgit::archive::types::ArchiveFormat::TarGz,
            ArchiveFormatDto::TarBz2 => crate::rpcgit::archive::types::ArchiveFormat::TarBz2,
            ArchiveFormatDto::Zip => crate::rpcgit::archive::types::ArchiveFormat::Zip,
        }
    }
}

#[derive(Debug, Clone, serde::Deserialize, utoipa::ToSchema)]
pub struct ArchiveCreateCmd {
    pub revision: String,
    pub format: ArchiveFormatDto,
    #[serde(default)]
    pub path_filter: Option<String>,
}

#[utoipa::path(
    post,
    path = "/repos/{space_name}/{repo_name}/archives",
    tag = "archives",
    description = "为指定修订生成归档并上传存储，返回下载地址。",
    params(RepoPath),
    request_body = ArchiveCreateCmd,
    responses(
        (status = 200, description = "build archive and return download link", body = AppResponseData<ArchiveResultDto>)
    )
)]
pub async fn create_archive(
    State(service): State<GitService>,
    session: Session,
    Path(path): Path<RepoPath>,
    Json(cmd): Json<ArchiveCreateCmd>,
) -> Result<AppResponseData<ArchiveResultDto>, ApiError> {
    require_writer(
        &service,
        &session,
        path.space_name.clone(),
        path.repo_name.clone(),
    )
    .await?;
    let opts = ArchiveOptionsDto {
        format: cmd.format.into(),
        path_filter: cmd.path_filter,
    };
    let out = service
        .archive_create(path.space_name, path.repo_name, cmd.revision, opts)
        .await
        .map_err(GitApiError::from)?;
    Ok(AppResponseData::ok(out))
}