minio 0.4.0

// MinIO Rust Library for Amazon S3 Compatible Cloud Storage
// Copyright 2025 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use crate::s3::client::MinioClient;
use crate::s3::error::ValidationErr;
use crate::s3::header_constants::*;
use crate::s3::multimap_ext::{Multimap, MultimapExt};
use crate::s3::response::SelectObjectContentResponse;
use crate::s3::segmented_bytes::SegmentedBytes;
use crate::s3::sse::SseCustomerKey;
use crate::s3::types::{
    BucketName, ObjectKey, Region, S3Api, S3Request, SelectRequest, ToS3Request, VersionId,
};
use crate::s3::utils::{check_ssec, insert, md5sum_hash};
use async_trait::async_trait;
use bytes::Bytes;
use http::Method;
use std::sync::Arc;
use typed_builder::TypedBuilder;

/// Argument builder for the [`SelectObjectContent`](https://docs.aws.amazon.com/AmazonS3/latest/API/API_SelectObjectContent.html) S3 API operation.
///
/// This struct constructs the parameters required for the [`Client::select_object_content`](crate::s3::client::MinioClient::select_object_content) method.
#[derive(TypedBuilder)]
pub struct SelectObjectContent {
    #[builder(!default)] // force required
    client: MinioClient,

    #[builder(default, setter(into))]
    extra_headers: Option<Multimap>,
    #[builder(default, setter(into))]
    extra_query_params: Option<Multimap>,
    #[builder(default, setter(into))]
    region: Option<Region>,
    #[builder(setter(into), !default)]
    bucket: BucketName,
    #[builder(setter(into), !default)]
    object: ObjectKey,

    #[builder(default, setter(into))]
    version_id: Option<VersionId>,
    #[builder(default, setter(into))]
    ssec: Option<SseCustomerKey>,
    #[builder(default)]
    request: SelectRequest,
}

/// Builder type for [`SelectObjectContent`] that is returned by [`MinioClient::select_object_content`](crate::s3::client::MinioClient::select_object_content).
///
/// This type alias simplifies the complex generic signature generated by the `typed_builder` crate.
pub type SelectObjectContentBldr = SelectObjectContentBuilder<(
    (MinioClient,),
    (),
    (),
    (),
    (BucketName,),
    (ObjectKey,),
    (),
    (),
    (SelectRequest,),
)>;

impl S3Api for SelectObjectContent {
    type S3Response = SelectObjectContentResponse;
}

#[async_trait]
impl ToS3Request for SelectObjectContent {
    fn to_s3request(self) -> Result<S3Request, ValidationErr> {
        check_ssec(&self.ssec, &self.client)?;

        let bytes: Bytes = self.request.to_xml().into();

        let mut headers: Multimap = self.extra_headers.unwrap_or_default();
        headers.add(CONTENT_MD5, md5sum_hash(bytes.as_ref()));

        let mut query_params: Multimap = insert(self.extra_query_params, "select");
        query_params.add("select-type", "2");
        query_params.add_version(self.version_id);

        let body = Arc::new(SegmentedBytes::from(bytes));

        Ok(S3Request::builder()
            .client(self.client)
            .method(Method::POST)
            .region(self.region)
            .bucket(self.bucket)
            .query_params(query_params)
            .headers(headers)
            .object(self.object)
            .body(body)
            .build())
    }
}