const formats = {
    csv: 'csv',
}

const downloadStatement = (format, sessionId, start, end) => {
    const downloadUrl = new URL('https://www.tbank.ru/api/common/v1/export_operations/')

    downloadUrl.searchParams.set('format', format)
    downloadUrl.searchParams.set('sessionid', sessionId)
    downloadUrl.searchParams.set('start', start)
    downloadUrl.searchParams.set('end', end)

    chrome.downloads.download({
        url: downloadUrl.toString(),
    })
}

chrome.action.onClicked.addListener(async (tab) => {
    chrome.cookies.get(
        {
            url: tab.url,
            name: "psid",
        },
        async (cookie) => {
            const psId = cookie.value

            const now = new Date()
            const year = now.getUTCFullYear()
            const month = now.getUTCMonth()

            const start = Date.UTC(year, month, 1)
            const end = Date.UTC(year, month + 1, 0, 23, 59, 59, 0)

            downloadStatement(
                formats.csv,
                psId,
                start.toString(),
                end.toString(),
            )
        }
    )
})