# Stand-ins for the WindowsServerBackup cmdlets. Object shapes are best guesses until checked
# against Get-WsbCollectorDiagnostics.ps1 output from a real server.
#
#   . ./tests/MockWsb.ps1                  # nothing running
#   . ./tests/MockWsb.ps1 -WithRunningJob  # a backup in progress
#   ./Send-WsbBackupStatus.ps1 -ConfigPath ./my-test-config.json -DryRun
param([switch]$WithRunningJob)

# Fixed to the top of the hour so repeated runs see the same jobs
$now = Get-Date -Minute 0 -Second 0 -Millisecond 0

function New-MockItem($Name, [int]$HResult = 0, $ErrorDescription = '') {
    [pscustomobject]@{ Name = $Name; Type = 'Volume'; State = $(if ($HResult) { 'Failed' } else { 'Completed' })
                       HResult = $HResult; ErrorDescription = $ErrorDescription }
}

function New-MockJob($Type, $Start, $End, $State, [int]$HResult = 0, [int]$DetailedHResult = 0, $ErrorDescription = '', $Items = @()) {
    [pscustomobject]@{
        JobType          = $Type
        StartTime        = $Start
        EndTime          = $(if ($End) { $End } else { [datetime]::MinValue })
        JobState         = $State
        HResult          = $HResult
        DetailedHResult  = $DetailedHResult
        ErrorDescription = $ErrorDescription
        JobItems         = $Items
        VersionId        = $(if ($End) { $Start.ToUniversalTime().ToString('MM/dd/yyyy-HH:mm') } else { '' })
        SuccessLogPath   = 'C:\Windows\Logs\WindowsServerBackup\Backup-success.log'
        FailureLogPath   = $(if ($HResult -or $DetailedHResult) { 'C:\Windows\Logs\WindowsServerBackup\Backup_Error.log' } else { '' })
    }
}

$global:MockWsbRunning = if ($WithRunningJob) {
    @(New-MockJob 'Backup' $now.AddMinutes(-10) $null 'Running' -Items @((New-MockItem 'C:'), (New-MockItem 'D:')))
} else {
    # What an idle server might return: an empty job rather than nothing
    @([pscustomobject]@{ JobType = 'None'; StartTime = [datetime]::MinValue; EndTime = [datetime]::MinValue; JobState = 'Unknown' })
}

$global:MockWsbPrevious = @(
    (New-MockJob 'Backup' $now.AddHours(-12) $now.AddHours(-11) 'Completed' -Items @((New-MockItem 'C:'), (New-MockItem 'D:'))),
    # Completed overall, but one volume failed
    (New-MockJob 'Backup' $now.AddHours(-36) $now.AddHours(-35) 'Completed' 0 -2147024891 '' @(
        (New-MockItem 'C:'), (New-MockItem 'D:' -2147024891 'Access is denied.'))),
    # Failed outright: backup target not found (0x80042302)
    (New-MockJob 'Backup' $now.AddHours(-30) $now.AddHours(-29.9) 'Completed' -2147212542 0 `
        'The backup storage location could not be found.'),
    (New-MockJob 'Recovery' $now.AddHours(-5) $now.AddHours(-4) 'Completed'),  # a restore: must be ignored
    (New-MockJob 'Backup' $now.AddDays(-5) $now.AddDays(-5).AddHours(1) 'Completed')  # outside 48h lookback
)

$global:MockWsbSummary = [pscustomobject]@{
    NextBackupTime           = $now.Date.AddHours(21).AddDays($(if ($now.Hour -ge 21) { 1 } else { 0 }))
    LastSuccessfulBackupTime = $now.AddHours(-11)
    LastBackupResultHR       = 0
}

function Get-WBJob { param([int]$Previous) if ($PSBoundParameters.ContainsKey('Previous')) { $global:MockWsbPrevious } else { $global:MockWsbRunning } }
function Get-WBSummary { $global:MockWsbSummary }
function Get-WBPolicy { [pscustomobject]@{ PolicyName = 'Scheduled' } }
function Get-WBSchedule { param($Policy) @($global:MockWsbSummary.NextBackupTime) }