Adding http services along with provider + model modifications

lib/models/request_model.dart

@@ -1,4 +1,8 @@
+import 'dart:io';
+import 'dart:convert';
+import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
+import 'package:http/http.dart';
 import 'kvrow_model.dart';
 import '../consts.dart';
 
@@ -13,6 +17,9 @@ class RequestModel {
     this.requestParams,
     this.requestBodyContentType = DEFAULT_BODY_CONTENT_TYPE,
     this.requestBody,
+    this.responseStatus,
+    this.message,
+    this.responseModel,
   });
 
   final String id;
@@ -23,6 +30,9 @@ class RequestModel {
   final List<KVRow>? requestParams;
   final ContentType requestBodyContentType;
   final dynamic requestBody;
+  final int? responseStatus;
+  final String? message;
+  final ResponseModel? responseModel;
 
   RequestModel duplicate({
     required String id,
@@ -47,6 +57,9 @@ class RequestModel {
     List<KVRow>? requestParams,
     ContentType? requestBodyContentType,
     dynamic requestBody,
+    int? responseStatus,
+    String? message,
+    ResponseModel? responseModel,
   }) {
     return RequestModel(
       id: id ?? this.id,
@@ -58,6 +71,9 @@ class RequestModel {
       requestBodyContentType:
           requestBodyContentType ?? this.requestBodyContentType,
       requestBody: requestBody ?? this.requestBody,
+      responseStatus: responseStatus ?? this.responseStatus,
+      message: message ?? this.message,
+      responseModel: responseModel ?? this.responseModel,
     );
   }
 
@@ -72,6 +88,59 @@ class RequestModel {
       "Request Params: ${requestParams.toString()}",
       "Request Body Content Type: ${requestBodyContentType.toString()}",
       "Request Body: ${requestBody.toString()}",
+      "Response Status: $responseStatus",
+      "Response Message: $message",
+      "Response: ${responseModel.toString()}"
+    ].join("\n");
+  }
+}
+
+@immutable
+class ResponseModel {
+  const ResponseModel({
+    this.statusCode,
+    this.headers,
+    this.requestHeaders,
+    this.contentType,
+    this.body,
+    this.time,
+  });
+
+  final int? statusCode;
+  final Map<String, String>? headers;
+  final Map<String, String>? requestHeaders;
+  final String? contentType;
+  final String? body;
+  final Duration? time;
+
+  ResponseModel fromResponse({
+    required Response response,
+    Duration? time,
+  }) {
+    var contentType = response.headers[HttpHeaders.contentTypeHeader];
+    final responseHeaders = mergeMaps(
+        {HttpHeaders.contentLengthHeader: response.contentLength.toString()},
+        response.headers);
+    return ResponseModel(
+      statusCode: response.statusCode,
+      headers: responseHeaders,
+      requestHeaders: response.request?.headers,
+      contentType: contentType,
+      body: contentType == JSON_MIMETYPE
+          ? utf8.decode(response.bodyBytes)
+          : response.body,
+      time: time,
+    );
+  }
+
+  @override
+  String toString() {
+    return [
+      "Response Status: $statusCode",
+      "Response Time: $time",
+      "Response Headers: ${headers.toString()}",
+      "Response Request Headers: ${requestHeaders.toString()}",
+      "Response Body: $body",
     ].join("\n");
   }
 }