[dev] implements parse_single_request (#1,#3,#6)

split the .http file into blocks
gets method and URL from requests
cleans comments
fix API's

httpie/http_parser.py

@@ -12,7 +12,7 @@ class HttpFileRequest:
 
 def http_parser(filename: str) -> list[HttpFileRequest]:
     
-    def extract_headers(raw_text: str) -> dict :
+    def extract_headers(raw_text: list[str]) -> dict :
         '''
         Extract the headers of the .http file
         
@@ -22,22 +22,40 @@ def http_parser(filename: str) -> list[HttpFileRequest]:
         Returns:
             dict: containing the parsed headers
         '''
-        return None
+        return {}
     
-    def parse_body(raw_text: str) -> dict :
+    def parse_body(raw_text: str) -> bytes :
         '''
         parse the body of the .http file
         '''
-        return None
+        return b""
     
     def parse_single_request(raw_text: str) -> HttpFileRequest:
         '''Parse a single request from .http file format to HttpFileRequest '''
+        lines = raw_text.strip().splitlines()
+        
+        lines = [line.strip() for line in lines if not line.strip().startswith("#")]
+        
+        method, url = lines[0].split(" ")
+        
+        raw_headers = []
+        raw_body = []
+        is_body = False
+        
+        for line in lines[1:]:
+            if not line.strip():
+                is_body = True
+                continue
+            if not is_body:
+                raw_headers.append(line)
+            else:
+                raw_body.append(line)
         
         return HttpFileRequest(
             method=method,
             url=url,
-            headers={},
-            body=b"",
+            headers=extract_headers(raw_headers),
+            body=parse_body("\n".join(raw_body)),
         )
     
     http_file = Path(filename)
@@ -46,18 +64,11 @@ def http_parser(filename: str) -> list[HttpFileRequest]:
     if not http_file.is_file():
         raise IsADirectoryError(f"Path is not a file: {filename}")
     http_contents = http_file.read_text()
-    http_lines = [
-        line for line in http_contents.splitlines() if not line.startswith("#")
-    ]
-    http_lines = [line for line in http_lines if line.strip()]
-    first_line = http_lines[0]
-    method, url = first_line.split(" ")
+    
+    raw_requests = http_contents.split("###")
+    parsed_requests = []
+    
+    for raw_req in raw_requests:
+        parsed_requests.append(parse_single_request(raw_req))
 
-    return [
-        HttpFileRequest(
-            method=method,
-            url=url,
-            headers={},
-            body=b"",
-        )
-    ]
+    return parsed_requests