public async getODataUrl()

in src/dialog/dialog-helper.ts [25:79]
41 lines of code
10 McCabe index (conditional complexity)

    public async getODataUrl(): Promise<string> {
        let query: QueryHierarchyItem;
        let metadata: any;

        const queryErrorString = 'The query could not be found. Please make sure this is a valid query.';
        const axErrorString = 'Could not get ADO Analytics metadata for this account. Please make sure ADO Analytics is enabled.';

        NotesService.instance.clearAllNotes();

        // Validate
        try {
            query = await this.getQueryTemp();
        } catch (ex) {
            NotesService.instance.newNote('error', queryErrorString);
            return null;
        }

        try {
            metadata = await this.getODataMetadata();
        } catch (ex) {
            NotesService.instance.newNote('error', axErrorString);
            return null;
        }

        if (!(query != null && query.wiql != null)) {
            NotesService.instance.newNote('error', queryErrorString);
            return null;
        }

        if (metadata == null) {
            NotesService.instance.newNote('error', axErrorString);
            return null;
        }

        const parser = new ODataParser(query, metadata);

        if (!parser.isQueryValid()) {
            return null;
        }

        // Try to parse and return query.
        try {
            const allStatements = parser.makeAllStatements();

            // Test length.
            if (encodeURI(allStatements).length > 2083) {
                NotesService.instance.newNote('warning', `The encoded url has ${encodeURI(allStatements).length} characters and will be too long for some browsers and HTTP clients.`);
            }

            return allStatements;
        } catch (ex) {
            NotesService.instance.newNote('error', `An unexpected error occured: ${ex.message}`);
            return null;
        }
    }