const { Client } = require('@freshbooks/api')

const CLIENT_ID = '<your client id>'
const ACCESS_TOKEN = '<your access token>'
const ACCOUNT_ID = '<your account id>'
const DESTINATION_EMAIL = '<your email>' // Don't use the same email as the account owner.

const fbClient = new Client(CLIENT_ID, { accessToken: ACCESS_TOKEN })

async function createClient() {
    console.log('Creating client...')

    try {
        const clientData = {
            email: DESTINATION_EMAIL,
            organization: 'NodeJS SDK Test Client',
        }
        const client = await fbClient.clients.create(clientData, ACCOUNT_ID)

        console.log(`Created client ${client.data.id}`)
        return client.data.id
    } catch (e) {
        console.log(e)
    }
}

async function createInvoice(clientId) {
    // Taxed line items
    const line1 = {
        name: 'A Taxed Item',
        description: 'These things are taxed',
        qty: 2,
        taxAmount1: '13',
        taxName1: 'HST',
        unitCost: {
            amount: '27.00',
            code: 'CAD',
        },
    }

    const line2 = {
        name: 'Another Taxed ItemRegular Glasses',
        description: 'With a different tax',
        qty: 4,
        taxAmount1: '5',
        taxName1: 'GST',
        unitCost: {
            amount: '6.95',
            code: 'CAD',
        },
    }

    const invoiceData = {
        customerId: clientId,
        createDate: new Date(),
        lines: [line1, line2],
    }
    console.log(invoiceData)
    try {
        const invoice = await fbClient.invoices.create(invoiceData, ACCOUNT_ID)

        console.log(`Created invoice ${invoice.data.id}`)
        console.log(`Invoice total is ${invoice.data.amount.amount} ${invoice.data.amount.code}`)
        return invoice.data
    } catch (e) {
        console.log(e)
    }
}

async function sendInvoice(invoice) {
    console.log('Sending the invoice by email...')
    invoice.actionEmail = true
    invoice.emailRecipients = [DESTINATION_EMAIL]
    invoice.emailIncludePdf = false
    invoice.invoiceCustomizedEmail = {
        subject: 'Thanks for being a customer',
        body: 'This can be any personal message',
    }

    try {
        return await fbClient.invoices.update(ACCOUNT_ID, invoice.id, invoice)
    } catch (e) {
        console.log(e)
    }
}

async function main() {
    const clientId = await createClient()
    let invoice = await createInvoice(clientId)
    // Invoices are created in draft status until sent (or marked as sent)
    invoice = await sendInvoice(invoice)
}

main()