# Installs or updates every SWAT+ tool on https://install.swat.tamu.edu for Windows:
# SWAT+ Editor, SWAT+ Toolbox, QSWATPlus.
# All or nothing: every installer is downloaded and the requirements are checked
# before anything is installed, and the first installer that fails stops the rest.
#
#   irm https://install.swat.tamu.edu/all.ps1 | iex

& {
$ErrorActionPreference = 'Stop'
$ProgressPreference = 'SilentlyContinue'
[Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12

$done = New-Object System.Collections.Generic.List[string]
$sb = @{}

function Say([string]$m) { Write-Host ''; Write-Host "### $m" -ForegroundColor Magenta }

# Errors are thrown, never `exit`, which would close the window the command was pasted into.
function Stop-All([string]$m) {
    Write-Host ''
    Write-Host "xx  $m" -ForegroundColor Red
    if ($done.Count) { Write-Host 'Installed or updated before it stopped:'; $done | ForEach-Object { Write-Host "  $_" } }
    else { Write-Host 'Nothing was installed.' }
    throw 'The SWAT+ install stopped.'
}

function Get-Installer([string]$key, [string]$url) {
    try { $sb[$key] = [scriptblock]::Create((Invoke-RestMethod -UseBasicParsing -Uri $url)) }
    catch { Stop-All "Could not download $url" }
}

function Install-One([string]$name, [string]$key, [hashtable]$opts) {
    Say $name
    try { & $sb[$key] @opts } catch { Stop-All "${name}: $($_.Exception.Message)" }
    $done.Add($name)
}

Get-Installer 'editor' 'https://install.swat.tamu.edu/spe.ps1'
Get-Installer 'toolbox' 'https://install.swat.tamu.edu/spt.ps1'
Get-Installer 'qswatplus' 'https://install.swat.tamu.edu/qsp.ps1'
Say 'Checking the SWAT+ Toolbox requirements'
try { & $sb['toolbox'] -Check } catch { Stop-All ('SWAT+ Toolbox cannot be installed here: ' + $_.Exception.Message) }
Say 'Checking the QSWATPlus requirements'
try { & $sb['qswatplus'] -Check } catch { Stop-All ('QSWATPlus cannot be installed here: ' + $_.Exception.Message) }
Install-One 'SWAT+ Editor' 'editor' @{}
Install-One 'SWAT+ Toolbox' 'toolbox' @{}
Install-One 'QSWATPlus' 'qswatplus' @{}
Say 'Summary'
Write-Host 'Installed or up to date:'
$done | ForEach-Object { Write-Host "  $_" }
}