All files / src/gmail/providers gmailTransactionSourceProvider.ts

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
8x
 
 
 
 
8x
8x
 
8x
 
 
8x
 
 
 
 
 
 
 
5x
5x
 
 
 
5x
 
 
 
3x
 
 
 
23x
 
22x
 
22x
 
 
 
23x
 
23x
 
22x
 
 
 
22x
 
22x
 
22x
 
 
import { inject, injectable } from "inversify";
import GmailMessageData from "../types/gmailMessageData";
import ITransactionSourceProvider from "../../core/contracts/ITransactionSourceProvider";
import IUsesGoogleOAuth2 from "../../googleOAuth2/contracts/IUsesGoogleOAuth2";
import GmailApiClient from "../clients/gmailApiClient";
import { injectables } from "../../core/types/injectables";
import ILogger from "../../core/contracts/ILogger";
import GoogleOAuth2Identifiers from "../../googleOAuth2/types/googleOAuth2Identifiers";
import { DependencyInjector } from "../../dependencyInjector";
 
@injectable()
export default class GmailTransactionSourceProvider implements ITransactionSourceProvider, IUsesGoogleOAuth2 {
    private readonly logger;
    private gmailApiClient: GmailApiClient;
 
    public constructor(
        @inject(injectables.ILogger)
        logger: ILogger
    ) {
        this.logger = logger;
        this.gmailApiClient = null!;
    }
 
    public async useOAuth2IdentifiersAsync(identifiers: GoogleOAuth2Identifiers) {
        this.gmailApiClient = await DependencyInjector.Singleton.generateGmailServiceAsync(injectables.GmailApiClientGenerator, identifiers);
    }
 
    public generateTransactionIdsAsync() {
        return this.gmailApiClient.generateMessageIdsAsync();
    }
    
    public async getAsync(transactionId: string) {
        const messageData = await this.getGmailMessageDataAsync(transactionId);
 
        const attachmentData = await this.getAttachmentDataAsync(messageData);
        
        return attachmentData;
    }
 
    private async getGmailMessageDataAsync(transactionId: string) {
        this.logger.log(`Fetching Gmail message...`, { transactionId: transactionId });
 
        const gmailMessageData = await this.gmailApiClient.fetchMessageDataAsync(transactionId);
 
        return gmailMessageData;
    }
 
    private async getAttachmentDataAsync(messageData: GmailMessageData) {
        this.logger.log(`Fetching Gmail attachment...`, { transactionId: messageData.messageId });
 
        const attachmentData = await this.gmailApiClient.fetchAttachmentDataAsync(messageData);
 
        return attachmentData;
    }
}