refactor: Restructure project layout and clean up dependencies (#30)

This commit introduces a significant reorganization of the project structure to improve maintainability and clarity.

Key changes include:
- Adjusted the directory layout for a more logical module organization.
- Removed unused crate dependencies, reducing the overall project size and potentially speeding up build times.
- Updated import paths and configuration files to reflect the structural changes.

crates/ecstore/src/client/api_get_options.rs

@@ -0,0 +1,146 @@
+#![allow(clippy::map_entry)]
+// Copyright 2024 RustFS Team
+//
+// 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.
+#![allow(unused_imports)]
+#![allow(unused_variables)]
+#![allow(unused_mut)]
+#![allow(unused_assignments)]
+#![allow(unused_must_use)]
+#![allow(clippy::all)]
+
+use http::{HeaderMap, HeaderName, HeaderValue};
+use std::collections::HashMap;
+use time::OffsetDateTime;
+use tracing::warn;
+
+use crate::client::api_error_response::err_invalid_argument;
+
+#[derive(Default)]
+#[allow(dead_code)]
+pub struct AdvancedGetOptions {
+    replication_deletemarker: bool,
+    is_replication_ready_for_deletemarker: bool,
+    replication_proxy_request: String,
+}
+
+pub struct GetObjectOptions {
+    pub headers: HashMap<String, String>,
+    pub req_params: HashMap<String, String>,
+    //pub server_side_encryption: encrypt.ServerSide,
+    pub version_id: String,
+    pub part_number: i64,
+    pub checksum: bool,
+    pub internal: AdvancedGetOptions,
+}
+
+impl Default for GetObjectOptions {
+    fn default() -> Self {
+        Self {
+            headers: HashMap::new(),
+            req_params: HashMap::new(),
+            //server_side_encryption: encrypt.ServerSide::default(),
+            version_id: "".to_string(),
+            part_number: 0,
+            checksum: false,
+            internal: AdvancedGetOptions::default(),
+        }
+    }
+}
+
+impl GetObjectOptions {
+    pub fn header(&self) -> HeaderMap {
+        let mut headers: HeaderMap = HeaderMap::with_capacity(self.headers.len());
+        for (k, v) in &self.headers {
+            if let Ok(header_name) = HeaderName::from_bytes(k.as_bytes()) {
+                headers.insert(header_name, v.parse().expect("err"));
+            } else {
+                warn!("Invalid header name: {}", k);
+            }
+        }
+        if self.checksum {
+            headers.insert("x-amz-checksum-mode", "ENABLED".parse().expect("err"));
+        }
+        headers
+    }
+
+    pub fn set(&self, key: &str, value: &str) {
+        //self.headers[http.CanonicalHeaderKey(key)] = value;
+    }
+
+    pub fn set_req_param(&mut self, key: &str, value: &str) {
+        self.req_params.insert(key.to_string(), value.to_string());
+    }
+
+    pub fn add_req_param(&mut self, key: &str, value: &str) {
+        self.req_params.insert(key.to_string(), value.to_string());
+    }
+
+    pub fn set_match_etag(&mut self, etag: &str) -> Result<(), std::io::Error> {
+        self.set("If-Match", &format!("\"{etag}\""));
+        Ok(())
+    }
+
+    pub fn set_match_etag_except(&mut self, etag: &str) -> Result<(), std::io::Error> {
+        self.set("If-None-Match", &format!("\"{etag}\""));
+        Ok(())
+    }
+
+    pub fn set_unmodified(&mut self, mod_time: OffsetDateTime) -> Result<(), std::io::Error> {
+        if mod_time.unix_timestamp() == 0 {
+            return Err(std::io::Error::other(err_invalid_argument("Modified since cannot be empty.")));
+        }
+        self.set("If-Unmodified-Since", &mod_time.to_string());
+        Ok(())
+    }
+
+    pub fn set_modified(&mut self, mod_time: OffsetDateTime) -> Result<(), std::io::Error> {
+        if mod_time.unix_timestamp() == 0 {
+            return Err(std::io::Error::other(err_invalid_argument("Modified since cannot be empty.")));
+        }
+        self.set("If-Modified-Since", &mod_time.to_string());
+        Ok(())
+    }
+
+    pub fn set_range(&mut self, start: i64, end: i64) -> Result<(), std::io::Error> {
+        if start == 0 && end < 0 {
+            self.set("Range", &format!("bytes={}", end));
+        } else if 0 < start && end == 0 {
+            self.set("Range", &format!("bytes={}-", start));
+        } else if 0 <= start && start <= end {
+            self.set("Range", &format!("bytes={}-{}", start, end));
+        } else {
+            return Err(std::io::Error::other(err_invalid_argument(&format!(
+                "Invalid range specified: start={} end={}",
+                start, end
+            ))));
+        }
+        Ok(())
+    }
+
+    pub fn to_query_values(&self) -> HashMap<String, String> {
+        let mut url_values = HashMap::new();
+        if self.version_id != "" {
+            url_values.insert("versionId".to_string(), self.version_id.clone());
+        }
+        if self.part_number > 0 {
+            url_values.insert("partNumber".to_string(), self.part_number.to_string());
+        }
+
+        for (key, value) in self.req_params.iter() {
+            url_values.insert(key.to_string(), value.to_string());
+        }
+
+        url_values
+    }
+}