local M = {}
local pod_api = require "main.mymodules.pod_api"

function M.print_pod_name()
  pos = go.get_position()
  message_pod_name = {}
  pod_name = ""
  for i,value in ipairs(current_pods) do
    position_of_pod = go.get_position(value["id"])
    if (pos.x > position_of_pod.x and pos.x - position_of_pod.x < 25) or (position_of_pod.x > pos.x and position_of_pod.x - pos.x < 25) then
      pod_name = pod_name .. " " .. value["pod_name"]
      last_pod_position = position_of_pod
    end
  end
  if pod_name ~= "" then
    if pod_name:match("[%a%d%p_]%s[%a%d%p_]") ~= nil then
      pod_name = pod_name:gsub(" ", "\n")
    end
    
    msg.post("ui#gui","pod_name",{ pod_name = pod_name, position = last_pod_position })		
    --msg.post("ui#gui","pod_name",{ pod_name = pod_name })			
    
  end
end

function M.print_pod_log(pod_id)
  print("[pod_log] getting pod logs...")
  pos = go.get_position()
  for i,value in ipairs(current_pods) do
    if (pod_id == value["id"]) then
      print("[pod_log] getting pod logs for " .. value["pod_name"])
      pod_api.pod_log(value["pod_name"])
      return value["pod_name"]
    end
  end
end

function M.swap_pod(items)
  for i,value in ipairs(current_pods) do
    if value["collision"] == true and value["color"] == "red" then
      current_pods[i]["id"] =	factory.create("/pod_not_running#podfactory", value["old_position"])
      current_pods[i]["color"] = "red"
      current_pods[i]["collision"] = false
      pod_api.delete_pod(value["pod_name"])
      return
    end
  end

  kubeinvaders_pod_not_running = 0						    -- Pods not running in Kubeinvaders
  kubeinvaders_pod_running =  0 								-- Pods running in Kubeinvaders
  
  kubernetes_pod_not_running = 0								-- Pods not running in Kubernetes
  kubernetes_pod_running = 0 									-- Pods running in Kubernetes

  global_kubernetes_pod_size = table.getn(items)			    -- All pods in Kubernetes
  global_kubeinvaders_pod_size = table.getn(current_pods)     -- All pods in Kubeinvaders

  for i,value in ipairs(items) do
    if value['status']['phase'] ~= "Running" or value['metadata']['deletionTimestamp'] ~= nil then
      print("[swap_pod] phase of " .. value['metadata']['name'] .. " is " ..value['status']['phase'])
      print("[swap_pod] " .. value['metadata']['name'] .. " is not running")
      kubernetes_pod_not_running = kubernetes_pod_not_running + 1
    else
      kubernetes_pod_running = kubernetes_pod_running + 1
    end
  end

  print ("[swap_pod]: pods not running pods in Kubernetes: " .. kubernetes_pod_not_running)
  print ("[swap_pod]: pods running pods in Kubernetes: " .. kubernetes_pod_running)
  msg.post("ui#gui", "hello_gui",{ pod_running = kubernetes_pod_running })

  for i,value in ipairs(current_pods) do
    if value["color"] == "red" then
      kubeinvaders_pod_not_running = kubeinvaders_pod_not_running + 1 
    elseif value["color"] == "white" then
      kubeinvaders_pod_running = kubeinvaders_pod_running + 1 
    end
  end

  print ("[swap_pod]: pods not running pods in KubeInvaders: " .. kubeinvaders_pod_not_running)
  print ("[swap_pod]: pods running pods in KubeInvaders: " .. kubeinvaders_pod_running)

  if kubernetes_pod_running < kubeinvaders_pod_running then
    print ("[swap_pod] there are less pod running in kubernetes than kubeinvaders")
    i = global_kubeinvaders_pod_size - 1
    deleted_pods = 0
    while ( i > 0) do
      if  current_pods[i] ~= nil and current_pods[i]["color"] == "white" then
        go.delete(current_pods[i]["id"])
        table.remove(current_pods,i)
        deleted_pods = deleted_pods + 1
        print ("[swap_pod] delete kubeinvaders pod at position " .. tostring(i) .. " of kubeinvaders global pods array")
      end	
      i = i - 1
    end
    msg.post("ui#gui", "error",{ errormessage = "Synchronizing alien ships with Kubernetes pods.." })
    return
  end

  if (kubernetes_pod_running > kubeinvaders_pod_running) then
    for i,value in ipairs(current_pods) do
      go.delete(value["id"])
    end
    current_pods = {}
    pod_api.set_pods()
  end

  if kubeinvaders_pod_not_running > kubernetes_pod_not_running then
    print ("[swap_pod] there are more pod not running in KubeInvaders than Kubernetes")
    diff  = kubeinvaders_pod_not_running - kubernetes_pod_not_running
    a = 0
    while ( a < diff ) do
      for i,value in ipairs(current_pods) do
        if value["color"] == "red" then
          go.delete(value["id"])
          table.remove(current_pods,i)					
        end
      end
      a = a + 1
    end
    msg.post("ui#gui", "error",{ errormessage = "Synchronizing alien ships with Kubernetes pods.." })
  end	
end 

return M