// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.

import apollo from '@/utils/apolloManager';
import gql from 'graphql-tag';
import { RequestResponse } from '@/types/response';

// fetchProjectUsage retrieves total project usage for a given period
export async function fetchProjectUsage(projectID: string, since: Date, before: Date): Promise<RequestResponse<ProjectUsage>> {
    let result: RequestResponse<ProjectUsage> = new RequestResponse<ProjectUsage>();

    let response: any = await apollo.query(
        {
            query: gql(`
                query {
                    project(id: "${projectID}") {
                        usage(since: "${since.toISOString()}", before: "${before.toISOString()}") {
                            storage,
                            egress,
                            objectCount,
                            since,
                            before
                        }
                    }
                }`
            ),
            fetchPolicy: 'no-cache',
            errorPolicy: 'all'
        }
    );

    if (response.errors) {
        result.errorMessage = response.errors[0].message;
    } else {
        result.isSuccess = true;
        result.data = response.data.project.usage;
    }

    return result;
}

// fetchBucketUsages retrieves bucket usage totals for a particular project
export async function fetchBucketUsages(projectID: string, before: Date, cursor: BucketUsageCursor): Promise<RequestResponse<BucketUsagePage>> {
    let result: RequestResponse<BucketUsagePage> = new RequestResponse<BucketUsagePage>();

    let response: any = await apollo.query(
        {
            query: gql(`
                query {
                    project(id: "${projectID}") {
                        bucketUsages(before: "${before.toISOString()}", cursor: {
                                limit: ${cursor.limit}, search: "${cursor.search}", page: ${cursor.page}
                            }) {
                                bucketUsages{
                                    bucketName,
                                    storage,
                                    egress,
                                    objectCount,
                                    since,
                                    before
                                },
                                search,
                                limit,
                                offset,
                                pageCount,
                                currentPage,
                                totalCount 
                        }
                    }
                }`
            ),
            fetchPolicy: 'no-cache',
            errorPolicy: 'all'
        }
    );

    if (response.errors) {
        result.errorMessage = response.errors[0].message;
    } else {
        result.isSuccess = true;
        result.data = response.data.project.bucketUsages;
    }

    return result;
}

export async function fetchCreditUsage(): Promise<RequestResponse<CreditUsage>> {
    let result: RequestResponse<CreditUsage> = new RequestResponse<CreditUsage>();

    let response: any = await apollo.query(
        {
            query: gql(`
                query {
                    creditUsage {
                        referred,
                        usedCredit,
                        availableCredit,
                    }
                }`
            ),
            fetchPolicy: 'no-cache',
            errorPolicy: 'all',
        }
    );

    if (response.errors) {
        result.errorMessage = response.errors[0].message;
    } else {
        result.isSuccess = true;
        result.data = response.data.creditUsage;
    }

    return result;
}