GetAndSayWeather

Function Get-EpochDate ($epochDate) {
    [timezone]::CurrentTimeZone.ToLocalTime(([datetime]'1/1/1970').AddSeconds($epochDate))
}

#$apiKey = ''
#$cityId = 0000000

#$url = "https://api.openweathermap.org/data/2.5/forecast?id={0}&units=imperial&appid={1}" -f $cityId, $apiKey

#$forecast = Invoke-RestMethod -Uri $url -Method Get
$forecast = Get-Content .\ResponseExample.json -Raw | ConvertFrom-Json
#$today = [datetime]::Today
$today = Get-Date -Month 7 -Day 18 -Year 2020
$tomorrow = $today.AddDays(1)
$dayAfter = $today.AddDays(2)

$todayTemps = New-Object 'System.Collections.Generic.List[decimal]'
$tomorrowTemps = New-Object 'System.Collections.Generic.List[decimal]'

$tomorrowWeather = New-Object 'System.Collections.Generic.List[object]'

foreach ($item in $forecast.list) {

    $date = Get-EpochDate $item.dt

    if ($date -ge $today -and $date -lt $tomorrow) {
        # Add to today's tally
        $todayTemps.Add($item.main.temp)
    }
    elseif ($date -ge $tomorrow -and $date -lt $dayAfter) {
        # Add to tomorrow's tally
        $tomorrowTemps.Add($item.main.temp)
        $tomorrowWeather.Add(

            [pscustomobject]@{
                Time     = $date
                Category = $item.weather.main
                Weather  = switch ($item.weather.description) {
                    "few clouds" {
                        "scattered clouds"
                    }
                    "clear sky" {
                        "clear skies"
                    }
                    default {
                        $item.weather.description
                    }
                }
            }
        )
    }
}

$tomorrowsHigh = $tomorrowTemps | Measure-Object -Maximum | Select-Object -ExpandProperty Maximum
$tomorrowsHigh = [math]::Round($tomorrowsHigh, 0, "AwayFromZero")

if ([datetime]::Now -le $today.AddHours(14)) {
    $doToday = $true
    $todaysHigh = $todayTemps | Measure-Object -Maximum | Select-Object -ExpandProperty Maximum
    $todaysHigh = [math]::Round($todaysHigh, 0, "AwayFromZero")
}

Add-Type -AssemblyName System.Speech
$voice = New-Object System.Speech.Synthesis.SpeechSynthesizer

$voice.Speak("Here's today and tomorrow's weather forecast for $($forecast.city.name), $($forecast.city.state).")

# Say sunrise+sunset
$sunrise = Get-EpochDate $forecast.city.sunrise
if ([datetime]::Now -lt $sunrise) {
    $voice.Speak("The sun will rise at $($sunrise.ToString("h:mm tt"))")
}

$sunset = Get-EpochDate $forecast.city.sunset
if ([datetime]::Now -lt $sunset) {
    $voice.Speak("Sunset will happen at $($sunset.ToString("h:mm tt"))")
}

#region TEMPERATURES
if ($doToday) {
    $voice.Speak("The high temperature for today, $($today.ToString("MMMM d yyyy")), will be $todaysHigh degress fahrenheit.")
}
$voice.Speak("Tomorrow, the forecasted high is $tomorrowsHigh degrees fahrenheit.")

#endregion

#region TOMORROW FORECAST
$tomMorning = $tomorrowWeather[2..3]
$tomMorningGroup = $tomMorning | Group-Object -Property Weather

$speakTomMorning = "Tomorrow's forecast calls for"
if (@($tomMorningGroup).Count -ge 2) {

    $speakTomMorning = "$speakTomMorning {0} early in the morning, transitioning to {1} before noon." -f $tomMorning[0].Weather, $tomMorning[1].Weather
}
else {

    $speakTomMorning = "$speakTomMorning $($tomMorningGroup.Name) all morning."
}
$speakTomMorning
$voice.Speak($speakTomMorning)

$tomEvening = $tomorrowWeather[4..($tomorrowWeather.Count - 1)]

$speakTomEvening = "In the afternoon and evening,"
for ($i = 0; $i -lt $tomEvening.Count; $i++) {

    $wevent = $tomEvening[$i]

    switch ($i) {
        0 {
            $twoEvent = $wevent.Weather
            $speakTomEvening = "$speakTomEvening $twoEvent can be expected around 2:00."
            $lastCat = $wevent.Category
        }
        default {
            $thisEvent = $wevent.Weather
            $thisCat = $wevent.Category
            $time = $wevent.Time.ToString("h:mm tt")
            if ($thisCat -ne $lastCat) {

                if ($i -eq $tomEvening.Count - 1) {

                    $speakTomEvening = "$speakTomEvening And finally,"
                }

                $speakTomEvening = "$speakTomEvening The weather will change to $thisEvent around $time."
            }
            $lastCat = $thisCat
        }
    }
}
$speakTomEvening
$voice.Speak($speakTomEvening)
#endregion

$voice.Dispose()