# AuraOffice 0.4.4 for Windows x64
#
#   irm https://auraoffice.org/install.ps1 | iex
#
# One application instead of the whole suite: the longer form of the line takes
# names on the end, as in
#
#   & ([scriptblock]::Create((irm https://auraoffice.org/install.ps1))) page
#
# List, which has a release line of its own, is installed the same way with
# its name: list. A line with no names installs the suite.
#
# Track has its own release line too. Add track to the longer form above to install it.
#
# What this does, so that nobody has to run it to find out: it downloads the
# installer of each application to a temporary folder, checks every one against
# the checksum below before it runs any of them, and then runs each installer
# silently. The installers put the applications in your own AppData folder, so
# nothing asks for administrator rights. It prints what it installed.
#
# The checksums are not protection against this server: they came from this
# server. They are protection against a download that arrived damaged or
# truncated, which is the failure that actually happens and is otherwise silent.
#
# Reading it before running it is the right instinct and this file is written to
# be read: no second stage, and nothing fetched but the installers named below.
# It sticks to what Windows PowerShell 5.1 understands, which every Windows 10
# and 11 has. There is no `exit` in it: run through `iex`, an exit would close
# the PowerShell window it was typed into.

function Install-AuraOffice {
    param([string[]] $Names)

    $ErrorActionPreference = 'Stop'
    # Windows PowerShell draws a progress bar for every chunk it downloads, and
    # that makes a 4 MB installer take a minute instead of a second.
    $ProgressPreference = 'SilentlyContinue'
    # TLS. A current .NET leaves the choice to Windows (SystemDefault, which is 0),
    # and that is left alone: adding TLS 1.2 to it would replace the system's
    # choice with TLS 1.2 alone. An older one offers only TLS 1.0 and 1.1, which
    # the server refuses, so TLS 1.2 is added there.
    $tls = [Net.ServicePointManager]::SecurityProtocol
    if ([int]$tls -ne 0 -and -not ($tls -band [Net.SecurityProtocolType]::Tls12)) {
        [Net.ServicePointManager]::SecurityProtocol = $tls -bor [Net.SecurityProtocolType]::Tls12
    }

    # Args is how each installer runs without a window: /S for the suite's NSIS
    # installers, and for each Inno Setup one /VERYSILENT with
    # /CURRENTUSER, which keeps it in your own AppData. Default says whether a
    # line with no names installs it.
    $builds = @(
        [pscustomobject]@{ App = 'base'; Name = 'Base'; Version = '0.4.4'; File = 'AuraBase_0.4.4_r12_x64-setup.exe'; Size = '4.1 MB'; Sha256 = '7915e38efc9899a8d0ce69db3f2e7971985d95cc78bb7529e4ffc9a92e085bbd'; Url = 'https://auraoffice.org/releases/AuraBase_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'cite'; Name = 'Cite'; Version = '0.4.4'; File = 'AuraCite_0.4.4_r12_x64-setup.exe'; Size = '4.9 MB'; Sha256 = '0d6272398b59c0d8b190f2b82097f94be45d7a8585fe5f4c813efd4090ce9bcc'; Url = 'https://auraoffice.org/releases/AuraCite_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'deck'; Name = 'Deck'; Version = '0.6.6'; File = 'AuraDeck_0.6.6_r12_x64-setup.exe'; Size = '4.9 MB'; Sha256 = '6f57bdecc60fdac7a40ecd2cbc6fd61fc899ee9f3db0dca42a342b40e6a8d384'; Url = 'https://auraoffice.org/releases/AuraDeck_0.6.6_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'hub'; Name = 'AuraOffice Hub'; Version = '0.4.4'; File = 'AuraOffice Hub_0.4.4_r12_x64-setup.exe'; Size = '3.2 MB'; Sha256 = '0ca34926536825554bfec0b65f315a56b807c6e0267dc15bad1c9401ee0d0971'; Url = 'https://auraoffice.org/releases/AuraOffice Hub_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'md'; Name = 'MD'; Version = '0.4.4'; File = 'AuraMD_0.4.4_r12_x64-setup.exe'; Size = '3.7 MB'; Sha256 = '7f83d52a0d48b879a68bd04b5b42aa25c735ac7f1fe52f3bc3e7e57278581961'; Url = 'https://auraoffice.org/releases/AuraMD_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'page'; Name = 'Page'; Version = '0.4.4'; File = 'AuraPage_0.4.4_r12_x64-setup.exe'; Size = '6.7 MB'; Sha256 = '86da2875234d2844b16b1a293b80bf6b1740f7081f6e18e1f02acb1614d9c3af'; Url = 'https://auraoffice.org/releases/AuraPage_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'sheet'; Name = 'Sheet'; Version = '0.4.4'; File = 'AuraSheet_0.4.4_r12_x64-setup.exe'; Size = '3.9 MB'; Sha256 = 'a4559247bcafe45d618ee74390f453fe4bd9b154e1df9a5719b912e43d709910'; Url = 'https://auraoffice.org/releases/AuraSheet_0.4.4_r12_x64-setup.exe'; Args = '/S'; Default = $true }
        [pscustomobject]@{ App = 'list'; Name = 'List'; Version = '1.1.6'; File = 'auralist-1.1.6-windows-x64-setup.exe'; Size = '11.3 MB'; Sha256 = '99f2f8cbf597412cc2273f38e95837f73e3457ceb87abda9e0648fb73241de1e'; Url = 'https://auraoffice.org/releases/auralist-1.1.6-windows-x64-setup.exe'; Args = '/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /CURRENTUSER'; Default = $false }
        [pscustomobject]@{ App = 'track'; Name = 'Track'; Version = '0.4.4'; File = 'auratrack-0.4.4-windows-x64-setup.exe'; Size = '2.8 MB'; Sha256 = '9eae45bb191bbdf8ceac09da2aaac6604ec92e38bb7db077314a0d228605db8d'; Url = 'https://auraoffice.org/releases/auratrack-0.4.4-windows-x64-setup.exe'; Args = '/S'; Default = $false }
    )

    if (-not [Environment]::Is64BitOperatingSystem) {
        Write-Host 'install: these builds are for 64-bit Windows, and this Windows is 32-bit.' -ForegroundColor Red
        return
    }

    # The names install.sh takes, and the product names too: List is list
    # and Track is track.
    $Names = @($Names | Where-Object { $_ } | ForEach-Object { ([string]$_).ToLower() -replace '^aura', '' })
    $known = @($builds | Where-Object { $_.App } | ForEach-Object { $_.App })
    if ($Names.Count -gt 0) {
        $unknown = @($Names | Where-Object { $known -notcontains $_ })
        if ($unknown.Count -gt 0) {
            if (@($builds | Where-Object { -not $_.App }).Count -gt 0) {
                Write-Host 'install: this build is one installer carrying the whole suite, so it cannot install one application on its own. Run the line with no name after it.' -ForegroundColor Red
            } else {
                Write-Host ('install: not in this build: ' + ($unknown -join ', ') + '. The names it takes: ' + ($known -join ', ') + '.') -ForegroundColor Red
            }
            return
        }
        $chosen = @($builds | Where-Object { $Names -contains $_.App })
    } else {
        $chosen = @($builds | Where-Object { $_.Default })
        if ($chosen.Count -eq 0) {
            Write-Host ('install: this server has no Windows build of the suite. Put the name of what to install after the line: ' + ($known -join ', ') + '.') -ForegroundColor Red
            return
        }
    }

    $tmp = Join-Path ([IO.Path]::GetTempPath()) ('auraoffice-' + [guid]::NewGuid().ToString('N'))
    New-Item -ItemType Directory -Path $tmp | Out-Null
    try {
        # Every installer is downloaded and checked before any of them runs, so a
        # bad download leaves nothing half installed.
        foreach ($b in $chosen) {
            $path = Join-Path $tmp $b.File
            Write-Host ('{0} {1}, {2}' -f $b.Name, $b.Version, $b.Size)
            Write-Host ('  from ' + $b.Url)
            try {
                Invoke-WebRequest -Uri $b.Url -OutFile $path -UseBasicParsing
            } catch {
                Write-Host ('install: the download failed: ' + $_.Exception.Message) -ForegroundColor Red
                return
            }
            $got = (Get-FileHash -Path $path -Algorithm SHA256).Hash.ToLower()
            if ($got -ne $b.Sha256) {
                Write-Host ('install: ' + $b.File + ' does not match its checksum, so nothing is being installed.') -ForegroundColor Red
                Write-Host ('     expected ' + $b.Sha256)
                Write-Host ('     got      ' + $got)
                Write-Host '     Try again; if it happens twice, say so instead of working around it.'
                return
            }
            Write-Host '  checksum matches'
        }

        Write-Host ''
        foreach ($b in $chosen) {
            Write-Host ('Installing {0} {1}' -f $b.Name, $b.Version)
            # Silent, and for the current user, so nothing asks for anything.
            $run = Start-Process -FilePath (Join-Path $tmp $b.File) -ArgumentList $b.Args -Wait -PassThru
            if ($run.ExitCode -ne 0) {
                Write-Host ('install: the {0} installer stopped with code {1}.' -f $b.Name, $run.ExitCode) -ForegroundColor Red
                return
            }
        }
    } finally {
        Remove-Item -LiteralPath $tmp -Recurse -Force -ErrorAction SilentlyContinue
    }

    # What Windows now lists, which is the installer's own record and not this
    # script's hope. Inno Setup lists an application as "<name> version <n>",
    # with the name as its installer spells it; -eq and -like ignore case.
    Write-Host ''
    Write-Host 'Installed:'
    $listed = @(Get-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' -ErrorAction SilentlyContinue)
    foreach ($b in $chosen) {
        $entry = $listed | Where-Object { $_.DisplayName -eq $b.Name -or $_.DisplayName -like ($b.Name + ' version *') } | Select-Object -First 1
        if ($entry) {
            # The installer writes the folder with quotes round it.
            $where = ([string]$entry.InstallLocation).Trim('"')
            if (-not $where -and $entry.UninstallString) {
                $where = Split-Path -Parent (([string]$entry.UninstallString).Trim('"'))
            }
            Write-Host ('  {0} {1}, in {2}' -f $b.Name, $entry.DisplayVersion, $where)
        } else {
            Write-Host ('  {0}: the installer finished, and Windows does not list it as installed for you.' -f $b.Name) -ForegroundColor Yellow
        }
    }
    Write-Host ''
    Write-Host 'Open them from the Start menu.'
}

Install-AuraOffice @args