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use crate::bucket::Bucket;
use crate::command::Command;
use crate::error::S3Error;
use crate::request::Request;
use crate::request::RequestImpl;
use crate::BucketConfiguration;
use awscreds::Credentials;
use awsregion::Region;
use http::HeaderMap;
use std::{collections::HashMap, sync::Arc};
use tokio::sync::RwLock;

use super::client;
use super::DEFAULT_REQUEST_TIMEOUT;

#[allow(dead_code)]
pub struct CreateBucketResponse {
    pub bucket: Bucket,
    pub response_text: String,
    pub response_code: u16,
}

impl CreateBucketResponse {
    pub fn success(&self) -> bool {
        self.response_code == 200
    }
}

impl Bucket {
    /// Create a new `Bucket` and instantiate it
    ///
    /// ```no_run
    /// use s3::{Bucket, BucketConfiguration};
    /// use s3::creds::Credentials;
    /// # use s3::region::Region;
    /// use anyhow::Result;
    ///
    /// # #[tokio::main]
    /// # async fn main() -> Result<()> {
    /// let bucket_name = "rust-s3-test";
    /// let region = "us-east-1".parse()?;
    /// let credentials = Credentials::default()?;
    /// let config = BucketConfiguration::default();
    ///
    /// let create_bucket_response = Bucket::create(bucket_name, region, credentials, config).await?;
    ///
    /// # Ok(())
    /// # }
    /// ```
    pub async fn create(
        name: &str,
        region: Region,
        credentials: Credentials,
        config: BucketConfiguration,
    ) -> Result<CreateBucketResponse, S3Error> {
        let mut config = config;
        config.set_region(region.clone());
        let command = Command::CreateBucket { config };
        let bucket = Bucket::new(name, region, credentials)?;
        let request = RequestImpl::new(&bucket, "", command)?;
        let response_data = request.response_data(false).await?;
        let response_text = response_data.as_str()?;
        Ok(CreateBucketResponse {
            bucket,
            response_text: response_text.to_string(),
            response_code: response_data.status_code(),
        })
    }

    /// Create a new `Bucket` with path style and instantiate it
    ///
    /// ```no_run
    /// use s3::{Bucket, BucketConfiguration};
    /// use s3::creds::Credentials;
    /// # use s3::region::Region;
    /// use anyhow::Result;
    ///
    /// # #[tokio::main]
    /// # async fn main() -> Result<()> {
    /// let bucket_name = "rust-s3-test";
    /// let region = "us-east-1".parse()?;
    /// let credentials = Credentials::default()?;
    /// let config = BucketConfiguration::default();
    ///
    /// let create_bucket_response = Bucket::create_with_path_style(bucket_name, region, credentials, config).await?;
    ///
    /// # Ok(())
    /// # }
    /// ```
    pub async fn create_with_path_style(
        name: &str,
        region: Region,
        credentials: Credentials,
        config: BucketConfiguration,
    ) -> Result<CreateBucketResponse, S3Error> {
        let mut config = config;
        config.set_region(region.clone());
        let command = Command::CreateBucket { config };
        let bucket = Bucket::new(name, region, credentials)?.with_path_style();
        let request = RequestImpl::new(&bucket, "", command)?;
        let response_data = request.response_data(false).await?;
        let response_text = response_data.to_string()?;
        Ok(CreateBucketResponse {
            bucket,
            response_text,
            response_code: response_data.status_code(),
        })
    }

    /// Instantiate an existing `Bucket`.
    ///
    /// # Example
    /// ```no_run
    /// use s3::bucket::Bucket;
    /// use s3::creds::Credentials;
    ///
    /// // Fake  credentials so we don't access user's real credentials in tests
    /// let bucket_name = "rust-s3-test";
    /// let region = "us-east-1".parse().unwrap();
    /// let credentials = Credentials::default().unwrap();
    ///
    /// let bucket = Bucket::new(bucket_name, region, credentials).unwrap();
    /// ```
    pub fn new(name: &str, region: Region, credentials: Credentials) -> Result<Bucket, S3Error> {
        Ok(Bucket {
            name: name.into(),
            region,
            credentials: Arc::new(RwLock::new(credentials)),
            extra_headers: HeaderMap::new(),
            extra_query: HashMap::new(),
            request_timeout: DEFAULT_REQUEST_TIMEOUT,
            path_style: false,
            listobjects_v2: true,
            http_client: client::create_client(DEFAULT_REQUEST_TIMEOUT)?,
        })
    }

    /// Instantiate a public existing `Bucket`.
    ///
    /// # Example
    /// ```no_run
    /// use s3::bucket::Bucket;
    ///
    /// let bucket_name = "rust-s3-test";
    /// let region = "us-east-1".parse().unwrap();
    ///
    /// let bucket = Bucket::new_public(bucket_name, region).unwrap();
    /// ```
    pub fn new_public(name: &str, region: Region) -> Result<Bucket, S3Error> {
        Ok(Bucket {
            name: name.into(),
            region,
            credentials: Arc::new(RwLock::new(Credentials::anonymous()?)),
            extra_headers: HeaderMap::new(),
            extra_query: HashMap::new(),
            request_timeout: DEFAULT_REQUEST_TIMEOUT,
            path_style: false,
            listobjects_v2: true,
            http_client: client::create_client(DEFAULT_REQUEST_TIMEOUT)?,
        })
    }
}