#requires -Version 5.1
<#
.SYNOPSIS
    Runs imapsync (via the upstream gilleslamiral/imapsync image) for every account
  in a migration accounts.csv, copying mail from docker-mailserver to Stalwart.
#>
param(
    [Parameter(Mandatory = $true)][string]$CsvPath,
    [Parameter(Mandatory = $true)][string]$SourceHost,
    [Parameter(Mandatory = $true)][string]$DestHost,
    [int]$SourcePort = 993,
    [int]$DestPort = 993,
    [switch]$DryRun
)

$rows = Import-Csv -Path $CsvPath

$missing = $rows | Where-Object { -not $_.old_password -or -not $_.new_password }
if ($missing) {
    throw "accounts.csv has $($missing.Count) row(s) missing old_password or new_password. Fill them in before syncing."
}

foreach ($row in $rows) {
    Write-Host "==> Syncing $($row.email)"

    $dockerArgs = @(
        "run", "--rm", "gilleslamiral/imapsync", "imapsync",
        "--host1", $SourceHost, "--port1", $SourcePort, "--ssl1",
        "--user1", $row.email, "--password1", $row.old_password,
        "--host2", $DestHost, "--port2", $DestPort, "--ssl2",
        "--user2", $row.email, "--password2", $row.new_password,
        "--automap", "--syncinternaldates", "--skipcrossduplicates",
        "--no-modulesversion"
    )

    if ($DryRun) {
        $dockerArgs += "--dry"
    }

    docker @dockerArgs
    if ($LASTEXITCODE -ne 0) {
        Write-Warning "imapsync exited with code $LASTEXITCODE for $($row.email)"
    }
}