const { transparent } = importModule('no-background')

const widget = new ListWidget()
widget.backgroundImage = await transparent(Script.name())

// this Scriptable Widget is coded by Slowlydev (aka r/Sl0wly-edits, r/Slowlydev) and adapted by @marco79

const DEV_MODE = true //for developer only
const DEV_PREVIEW = "medium" //for developer only (this script is specialy made for a medium sized widget)

const API_KEY = "b07bcc62baf142854c86ac6aaed52729" // enter your openweathermap.com api key
const FORECAST_HOURS = "3"
const UNITS = "metric" //metric for celsius and imperial for Fahrenheit

const CALENDAR_URL = "calshow://" //Apple Calendar App, if your favorite app does have a URL scheme feel free to change it
const WEATHER_URL = "" //there is no URL for the Apple Weather App, if your favorite app does feel free to add it

const widgetBackground = new Color("#DD0133") //Widget Background
const stackBackground = new Color("#FFFFFF") //Smaller Container Background
const calendarColor = new Color("#EA3323") //Calendar Color

const stackSize = new Size(0, 65) //0 means its automatic


if (config.runsInWidget || DEV_MODE) {

    const date = new Date()
    const dateNow = Date.now()

    let df_Name = new DateFormatter()
    let df_Month = new DateFormatter()
    df_Name.dateFormat = "EEEE"
    df_Month.dateFormat = "MMM YYY"

    const dayName = df_Name.string(date)
    const dayNumber = date.getDate().toString()
    const monthName = df_Month.string(date)

    // Option 1: uncomment this to use let the script locate you each time (which takes longer and needs more battery)
     let loc = await Location.current()
     let lat = loc["latitude"]
     let lon = loc["longitude"]

    // Option 2: hard coded longitude/latitude
//     let lat = "50.95330938278102"
//     let lon = "6.915087611808545"

    const weatherURL = `https://api.openweathermap.org/data/2.5/onecall?lat=${lat}&lon=${lon}&exclude=current,minutely,daily,alerts&units=${UNITS}&appid=${API_KEY}`
    const weatherRequest = new Request(weatherURL)
    const weaterData = await weatherRequest.loadJSON()
    const hourlyForecasts = weaterData.hourly
    let nextForecasts = []

    for (const hourlyForecast of hourlyForecasts) {
        if (nextForecasts.length == FORECAST_HOURS) { break }
        let dt = removeDigits(dateNow, 3)
        if (hourlyForecast.dt > dt) {
            nextForecasts.push(hourlyForecast)
        }
    }

    const events = await CalendarEvent.today([])

    let futureEvents = []

    for (const event of events) {
        if (futureEvents.length == 2) { break }
        if (event.startDate.getTime() > date.getTime() && !event.isAllDay) {
            futureEvents.push(event)
        }
    }

    let widget = new ListWidget()
    widget.backgroundColor =  widgetBackground
    widget.setPadding(10, 10, 10, 10)

    //Top Row (Date & Weather)
    let topRow = widget.addStack()
    topRow.layoutHorizontally()

    //Top Row Date
    let dateStack = topRow.addStack()
    dateStack.layoutHorizontally()
    dateStack.centerAlignContent()
    dateStack.setPadding(7, 7, 7, 7)

    dateStack.backgroundColor = stackBackground
    dateStack.cornerRadius = 12
    dateStack.size = stackSize

    dateStack.addSpacer()

    let dayNumberTxt = dateStack.addText(dayNumber + ".")
    dayNumberTxt.font = Font.semiboldSystemFont(32)
    dayNumberTxt.textColor = Color.black()

    dateStack.addSpacer(7)

    let dateTextStack = dateStack.addStack()
    dateTextStack.layoutVertically()

    let monthNameTxt = dateTextStack.addText(monthName.toUpperCase())
    monthNameTxt.font = Font.boldSystemFont(10)
    monthNameTxt.textColor = Color.black()

    let dayNameTxt = dateTextStack.addText(dayName)
    dayNameTxt.font = Font.boldSystemFont(12)
    dayNameTxt.textColor = calendarColor

    dateStack.addSpacer()

    topRow.addSpacer()

    widget.addSpacer()

    //Top Row Weather
    let weatherStack = topRow.addStack()
    weatherStack.layoutHorizontally()
    weatherStack.centerAlignContent()
    weatherStack.setPadding(7, 7, 7, 7)

    weatherStack.backgroundColor = stackBackground
    weatherStack.cornerRadius = 12
    weatherStack.size = stackSize
    weatherStack.url = WEATHER_URL

    for (const nextForecast of nextForecasts) {

        const iconURL = "https://openweathermap.org/img/wn/" + nextForecast.weather[0].icon + "@2x.png"

        let iconRequest = new Request(iconURL);
        let icon = await iconRequest.loadImage();
        weatherStack.addSpacer()

        //Hour Forecast Stack
        let hourStack = weatherStack.addStack()
        hourStack.layoutVertically()

        let hourTxt = hourStack.addText(formatAMPM(nextForecast.dt))
        hourTxt.centerAlignText()
        hourTxt.font = Font.systemFont(10)
        hourTxt.textColor = Color.black()
        hourTxt.textOpacity = 0.5

        let weatherIcon = hourStack.addImage(icon)
        weatherIcon.centerAlignImage()
        weatherIcon.size = new Size(25, 25)

        let tempTxt = hourStack.addText("  " + Math.round(nextForecast.temp) + "°")
        tempTxt.centerAlignText()
        tempTxt.font = Font.systemFont(10)
        tempTxt.textColor = Color.black()
    }

    weatherStack.addSpacer()

    //Bottom Row Events
    let eventStack = widget.addStack()
    eventStack.layoutHorizontally()
    eventStack.centerAlignContent()
    eventStack.setPadding(7, 7, 7, 7)

    eventStack.backgroundColor = stackBackground
    eventStack.cornerRadius = 12
    eventStack.size = stackSize
    let eventInfoStack

    const font = Font.lightSystemFont(20)
    let calendarSymbol = SFSymbol.named("calendar")
    calendarSymbol.applyFont(font)

    eventStack.addSpacer(8)

    let eventIcon = eventStack.addImage(calendarSymbol.image)
    eventIcon.imageSize = new Size(20, 20)
    eventIcon.resizable = false
    eventIcon.centerAlignImage()

    eventStack.addSpacer(14)
    eventStack.url = CALENDAR_URL

    let eventItemsStack = eventStack.addStack()
    eventItemsStack.layoutVertically()

    if (futureEvents.length != 0) {

        for (let i = 0; i < futureEvents.length; i++) {

            let futureEvent = futureEvents[i]
            const time = formatTime(futureEvent.startDate) + " to " + formatTime(futureEvent.endDate)
            const eventColor = new Color("#" + futureEvent.calendar.color.hex)
            eventInfoStack = eventItemsStack.addStack()
            eventInfoStack.layoutVertically()

            let eventTitle = eventItemsStack.addText(futureEvent.title)
            eventTitle.font = Font.semiboldSystemFont(12)
            eventTitle.textColor = eventColor
            eventTitle.lineLimit = 1

            let eventTime = eventItemsStack.addText(time + ".")
            eventTime.font = Font.semiboldMonospacedSystemFont(10)
            eventTime.textColor = Color.black()
            eventTime.textOpacity = 0.5

            if (i == 0) {
                eventItemsStack.addSpacer(3)
            }
        }

    } else {

        let nothingText = eventStack.addText("You have no upcoming events. Enjoy!")
        nothingText.font = Font.semiboldMonospacedSystemFont(12)
        nothingText.textColor = Color.black()
        nothingText.textOpacity = 0.5

    }

    eventStack.addSpacer()
    Script.setWidget(widget)

    if (DEV_MODE) {
        if (DEV_PREVIEW == "small") { widget.presentSmall() }
        if (DEV_PREVIEW == "medium") { widget.presentMedium() }
        if (DEV_PREVIEW == "large") { widget.presentLarge() }
    }

    Script.complete()
}

function removeDigits(x, n) { return (x - (x % Math.pow(10, n))) / Math.pow(10, n) }

function formatAMPM(UNIX_timestamp) {

    var date = new Date(UNIX_timestamp * 1000)
    var hours = date.getHours()

    // Option 1: uncomment this for am/pm time with hours from 0-12
    var ampm = hours >= 12 ? ' PM' : ' AM'
    hours = hours % 12
    hours = hours ? hours : 12
    var strTime = hours.toString() + ampm

    // Option 2: german localisation
    // var strTime = hours.toString() + ":00"

    return strTime
}

function formatTime(date) {
    let df = new DateFormatter()
    df.useNoDateStyle()
    df.useShortTimeStyle()
    return df.string(date)
}