File size: 5,875 Bytes
14459e2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
import 'dart:convert';

import 'package:scientry_api/commons/models/user.dart';
import 'package:scientry_api/service/email_manager.dart';
import 'package:scientry_api/service/gsheets_manager.dart';
import 'package:scientry_api/service/jwt_manager.dart';
import 'package:shelf/shelf.dart';

class EmailVerificationHandler {
  GsheetsManager gsheetsManager = GsheetsManager();
  EmailManager emailManager = EmailManager();

  Future<Response> verifyEmail(Request request) async {
    try {
      // Extract the token from the query parameters
      final token = request.url.queryParameters['token'];

      if (token == null || token.isEmpty) {
        return Response.badRequest(
          body: jsonEncode({
            "errorCode": -1,
            "errorMessage": "Missing or invalid token.",
          }),
          headers: {'Content-Type': 'application/json'},
        );
      }

      String? isVerified = JWTManager.verifyEmailVerificationToken(token);

      if (isVerified == null) {
        return Response.forbidden(
          jsonEncode({
            "errorCode": -1,
            "errorMessage": "Invalid or expired token.",
          }),
          headers: {'Content-Type': 'application/json'},
        );
      } else if (isVerified.contains("@")) {
        UserModel? user = await gsheetsManager.getUserByField(
          field: "email",
          value: isVerified,
        );
        if (user == null) {
          return Response.notFound(
            jsonEncode({"errorCode": -1, "errorMessage": "User not found."}),
            headers: {'Content-Type': 'application/json'},
          );
        } else if (user.isEmailVerified == true) {
          // If the user is already verified
          return Response.ok(
            jsonEncode({
              "errorCode": 0,
              "errorMessage": "Email is already verified.",
            }),
            headers: {'Content-Type': 'application/json'},
          );
        } else {
          // Update the user's verification status
          final updatedUser = user.copyWith(
            isEmailVerified: true,
            updatedAt: DateTime.now().millisecondsSinceEpoch,
          );
          print("UserData: ${updatedUser.toJson()}");
          bool status = await gsheetsManager.addUpdateUser(updatedUser);

          if (!status) {
            return Response.internalServerError(
              body: jsonEncode({
                "errorCode": -1,
                "errorMessage": "Failed to update user.",
              }),
              headers: {'Content-Type': 'application/json'},
            );
          } else {
            // Successfully verified the email
            return Response.ok(
              jsonEncode({
                "errorCode": 0,
                "errorMessage": "Email verified successfully.",
              }),
              headers: {'Content-Type': 'application/json'},
            );
          }
        }
      } else {
        return Response.forbidden(
          jsonEncode({
            "errorCode": -1,
            "errorMessage": "Invalid token format.",
          }),
          headers: {'Content-Type': 'application/json'},
        );
      }
    } catch (e) {
      return Response.internalServerError(
        body: jsonEncode({
          "errorCode": -1,
          "errorMessage": "An error occurred: ${e.toString()}",
        }),
        headers: {'Content-Type': 'application/json'},
      );
    }
  }

  Future<Response> requestEmailVerification(Request request) async {
    try {
      final body = await request.readAsString();
      final data = jsonDecode(body);
      String? email = data['email'];
      if (email == null || email.isEmpty) {
        return Response.badRequest(
          body: jsonEncode({
            "errorCode": -1,
            "errorMessage": "Email is required.",
          }),
          headers: {'Content-Type': 'application/json'},
        );
      }

      UserModel? user = await gsheetsManager.getUserByField(
        field: "email",
        value: email,
      );
      if (user == null) {
        return Response.notFound(
          jsonEncode({"errorCode": -1, "errorMessage": "User not found."}),
          headers: {'Content-Type': 'application/json'},
        );
      } else if (user.isEmailVerified == true) {
        return Response.ok(
          jsonEncode({
            "errorCode": 0,
            "errorMessage": "Email is already verified.",
          }),
          headers: {'Content-Type': 'application/json'},
        );
      } else if (user.isDeleted == true) {
        return Response.notFound(
          jsonEncode({"errorCode": -1, "errorMessage": "User not found."}),
          headers: {'Content-Type': 'application/json'},
        );
      } else {
        bool status = await emailManager.sendVerificationEmail(
          name: user.name!,
          email: user.email!,
        );
        if (!status) {
          return Response.internalServerError(
            body: jsonEncode({
              "errorCode": -1,
              "errorMessage": "Failed to send verification email.",
            }),
            headers: {'Content-Type': 'application/json'},
          );
        } else {
          return Response.ok(
            jsonEncode({
              "errorCode": 0,
              "errorMessage": "Verification email sent successfully.",
            }),
            headers: {'Content-Type': 'application/json'},
          );
        }
      }
    } catch (e) {
      return Response.internalServerError(
        body: jsonEncode({
          "errorCode": -1,
          "errorMessage": "An error occurred: ${e.toString()}",
        }),
        headers: {'Content-Type': 'application/json'},
      );
    }
  }
}