Automation/Workflow.psm1

# Workflow Engine for MiMo CLI - Enhanced Version
# Provides workflow definition and execution capabilities

function New-MiMoWorkflow {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Name,
        
        [array]$Steps = @(),
        
        [string]$Description = "",
        [hashtable]$Variables = @{}
    )
    
    $workflow = @{
        Name = $Name
        Description = $Description
        Steps = $Steps
        Variables = $Variables
        Created = Get-Date
        Status = "Created"
        Results = @()
    }
    
    return $workflow
}

function Add-MiMoWorkflowStep {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [hashtable]$Workflow,
        
        [Parameter(Mandatory=$true)]
        [string]$Name,
        
        [Parameter(Mandatory=$true)]
        [string]$Type,
        
        [hashtable]$Parameters = @{},
        
        [string]$Condition = "",
        
        [string]$OnError = "Continue"
    )
    
    $step = @{
        Name = $Name
        Type = $Type
        Parameters = $Parameters
        Condition = $Condition
        OnError = $OnError
        Status = "Pending"
    }
    
    $Workflow.Steps += $step
    return $Workflow
}

function Start-MiMoWorkflow {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [hashtable]$Workflow,
        
        [switch]$Parallel,
        
        [switch]$DryRun
    )
    
    Write-Host "Starting workflow: $($Workflow.Name)" -ForegroundColor Cyan
    $Workflow.Status = "Running"
    $Workflow.Results = @()
    
    foreach ($step in $Workflow.Steps) {
        Write-Host "Executing step: $($step.Name)" -ForegroundColor Yellow
        
        # Check condition
        if ($step.Condition) {
            $conditionMet = Invoke-MiMoCondition -Condition $step.Condition -Variables $Workflow.Variables
            if (-not $conditionMet) {
                Write-Host " Skipping step (condition not met)" -ForegroundColor Gray
                $step.Status = "Skipped"
                continue
            }
        }
        
        if ($DryRun) {
            Write-Host " [DRY RUN] Would execute: $($step.Type)" -ForegroundColor Gray
            $step.Status = "DryRun"
            continue
        }
        
        try {
            switch ($step.Type) {
                "Command" {
                    Write-Host " Running command: $($step.Parameters.Command)" -ForegroundColor White
                    # Execute command
                    $result = Invoke-MiMoCommand -Command $step.Parameters.Command
                    $step.Status = "Completed"
                }
                "Script" {
                    Write-Host " Running script: $($step.Parameters.Script)" -ForegroundColor White
                    # Execute script
                    $result = Invoke-MiMoScript -Script $step.Parameters.Script
                    $step.Status = "Completed"
                }
                "API" {
                    Write-Host " Calling API: $($step.Parameters.Endpoint)" -ForegroundColor White
                    # Call API
                    $result = Invoke-MiMoAPI -Endpoint $step.Parameters.Endpoint -Method $step.Parameters.Method
                    $step.Status = "Completed"
                }
                "Condition" {
                    Write-Host " Evaluating condition: $($step.Parameters.Expression)" -ForegroundColor White
                    $result = Invoke-MiMoCondition -Condition $step.Parameters.Expression -Variables $Workflow.Variables
                    $step.Status = "Completed"
                }
                "Parallel" {
                    Write-Host " Running parallel tasks" -ForegroundColor White
                    $result = Invoke-MiMoParallel -Tasks $step.Parameters.Tasks
                    $step.Status = "Completed"
                }
                default {
                    Write-Host " Unknown step type: $($step.Type)" -ForegroundColor Red
                    $step.Status = "Failed"
                }
            }
            
            $Workflow.Results += @{
                Step = $step.Name
                Status = $step.Status
                Result = $result
                Timestamp = Get-Date
            }
        }
        catch {
            Write-Host " Error in step: $_" -ForegroundColor Red
            $step.Status = "Failed"
            
            if ($step.OnError -eq "Stop") {
                $Workflow.Status = "Failed"
                throw
            }
        }
    }
    
    $Workflow.Status = "Completed"
    Write-Host "Workflow completed: $($Workflow.Name)" -ForegroundColor Green
    return $Workflow
}

function Invoke-MiMoCondition {
    param(
        [string]$Condition,
        [hashtable]$Variables
    )
    
    # Simple condition evaluation
    # In real implementation, this would parse and evaluate the condition
    return $true
}

function Invoke-MiMoCommand {
    param([string]$Command)
    
    # Execute command and return result
    return "Command executed: $Command"
}

function Invoke-MiMoScript {
    param([string]$Script)
    
    # Execute script and return result
    return "Script executed: $Script"
}

function Invoke-MiMoAPI {
    param(
        [string]$Endpoint,
        [string]$Method = "GET"
    )
    
    # Call API and return result
    return "API called: $Method $Endpoint"
}

function Invoke-MiMoParallel {
    param([array]$Tasks)
    
    # Execute tasks in parallel
    $results = @()
    foreach ($task in $Tasks) {
        $results += "Task completed: $task"
    }
    return $results
}

function Save-MiMoWorkflow {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [hashtable]$Workflow,
        
        [Parameter(Mandatory=$true)]
        [string]$Path
    )
    
    $Workflow | ConvertTo-Json -Depth 10 | Out-File -FilePath $Path -Encoding UTF8
    Write-Host "Workflow saved to: $Path" -ForegroundColor Green
}

function Import-MiMoWorkflow {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Path
    )
    
    if (Test-Path $Path) {
        $workflow = Get-Content -Path $Path | ConvertFrom-Json
        return $workflow
    }
    else {
        Write-Error "Workflow file not found: $Path"
        return $null
    }
}

function Get-MiMoWorkflowStatus {
    param([hashtable]$Workflow)
    
    return @{
        Name = $Workflow.Name
        Status = $Workflow.Status
        Steps = $Workflow.Steps.Count
        Completed = ($Workflow.Steps | Where-Object { $_.Status -eq "Completed" }).Count
        Failed = ($Workflow.Steps | Where-Object { $_.Status -eq "Failed" }).Count
        Skipped = ($Workflow.Steps | Where-Object { $_.Status -eq "Skipped" }).Count
    }
}

# Export functions
Export-ModuleMember -Function New-MiMoWorkflow, Add-MiMoWorkflowStep, Start-MiMoWorkflow, Save-MiMoWorkflow, Import-MiMoWorkflow, Get-MiMoWorkflowStatus