# Demo script to showcase Action History feature in Risk Management
# Run with: mix run demo_action_history.exs

alias PlatformCore.Repo
alias RiskCore.Context
alias RiskCore.RiskRuleHit

import Ecto.Query

IO.puts("\n" <> String.duplicate("=", 80))
IO.puts("📋 Action History Demo - Risk Management Dashboard")
IO.puts(String.duplicate("=", 80) <> "\n")

# Step 1: Find a recent risk rule hit to work with
IO.puts("Step 1: Finding a recent risk rule hit...")
recent_hit = Repo.one(
  from h in RiskRuleHit,
  where: h.status == "Hold",
  order_by: [desc: h.inserted_at],
  limit: 1,
  preload: :rule
)

case recent_hit do
  nil ->
    IO.puts("❌ No risk hits found in Hold status.")
    IO.puts("\n💡 Tip: Run the seed script first:")
    IO.puts("   mix run priv/repo/seed_risk_transactions.exs\n")
    
  hit ->
    IO.puts("✅ Found Risk Hit ID: #{hit.id}")
    IO.puts("   Transaction Type: #{hit.transaction_type}")
    IO.puts("   Merchant ID: #{hit.merchant_id}")
    IO.puts("   Status: #{hit.status}")
    IO.puts("   Rule: #{hit.rule.name}")
    
    # Step 2: Show initial action history
    IO.puts("\n" <> String.duplicate("-", 80))
    IO.puts("Step 2: Checking initial action history...")
    
    initial_history = Context.get_hit_action_history(hit.id)
    
    if length(initial_history) > 0 do
      IO.puts("✅ Found #{length(initial_history)} action(s) in history:\n")
      
      Enum.each(initial_history, fn action ->
        timestamp_str = if action.timestamp do
          Calendar.strftime(action.timestamp, "%Y-%m-%d %H:%M:%S")
        else
          "N/A"
        end
        
        IO.puts("   📝 #{timestamp_str}")
        IO.puts("      Action: #{action.action}")
        IO.puts("      Status: #{action.from_status || "N/A"} → #{action.to_status || "N/A"}")
        IO.puts("      Supervisor: #{action.supervisor_name}")
        if action.notes, do: IO.puts("      Notes: #{action.notes}")
        IO.puts("")
      end)
    else
      IO.puts("⚠️  No action history found (legacy data)")
    end
    
    # Step 3: Simulate supervisor action - Request Documents
    IO.puts(String.duplicate("-", 80))
    IO.puts("Step 3: Simulating supervisor action - Request Documents...")
    
    case Context.update_risk_rule_hit_action(hit.id, 1, "Request Docs", "Please provide transaction receipt and customer ID verification") do
      {:ok, updated_hit} ->
        IO.puts("✅ Action recorded successfully!")
        IO.puts("   New Status: #{updated_hit.status}")
        IO.puts("   Action Taken: #{updated_hit.action_taken}")
        
        # Step 4: Show updated action history
        IO.puts("\n" <> String.duplicate("-", 80))
        IO.puts("Step 4: Viewing updated action history...")
        
        updated_history = Context.get_hit_action_history(hit.id)
        IO.puts("✅ Now showing #{length(updated_history)} action(s) in history:\n")
        
        Enum.each(updated_history, fn action ->
          timestamp_str = if action.timestamp do
            Calendar.strftime(action.timestamp, "%Y-%m-%d %H:%M:%S")
          else
            "N/A"
          end
          
          IO.puts("   📝 #{timestamp_str}")
          IO.puts("      Action: #{action.action}")
          IO.puts("      Status: #{action.from_status || "N/A"} → #{action.to_status || "N/A"}")
          IO.puts("      Supervisor: #{action.supervisor_name}")
          if action.notes, do: IO.puts("      Notes: #{action.notes}")
          IO.puts("")
        end)
        
        # Step 5: Simulate another action - Reject
        IO.puts(String.duplicate("-", 80))
        IO.puts("Step 5: Simulating another supervisor action - Reject...")
        
        case Context.update_risk_rule_hit_action(updated_hit.id, 2, "Reject", "Transaction flagged as fraudulent after document review") do
          {:ok, final_hit} ->
            IO.puts("✅ Rejection recorded successfully!")
            IO.puts("   Final Status: #{final_hit.status}")
            
            # Final action history
            IO.puts("\n" <> String.duplicate("-", 80))
            IO.puts("Step 6: Final action history timeline...")
            
            final_history = Context.get_hit_action_history(final_hit.id)
            IO.puts("✅ Complete timeline with #{length(final_history)} action(s):\n")
            
            Enum.with_index(final_history, 1) |> Enum.each(fn {action, idx} ->
              timestamp_str = if action.timestamp do
                Calendar.strftime(action.timestamp, "%Y-%m-%d %H:%M:%S")
              else
                "N/A"
              end
              
              IO.puts("   #{idx}. #{timestamp_str}")
              IO.puts("      Action: #{action.action}")
              IO.puts("      Status Change: #{action.from_status || "N/A"} → #{action.to_status || "N/A"}")
              IO.puts("      Supervisor: #{action.supervisor_name}")
              if action.notes, do: IO.puts("      Notes: #{action.notes}")
              IO.puts("")
            end)
            
            IO.puts(String.duplicate("=", 80))
            IO.puts("✅ Demo Complete! Action history is now visible in the Risk Dashboard modal.")
            IO.puts(String.duplicate("=", 80) <> "\n")
            
          {:error, reason} ->
            IO.puts("❌ Failed to reject: #{inspect(reason)}")
        end
        
      {:error, reason} ->
        IO.puts("❌ Failed to update: #{inspect(reason)}")
    end
end