// TODO: create node package to do this
const blessed = require('blessed'),
      contrib = require('blessed-contrib'),
      shell = require('shelljs');

const screen = blessed.screen(),
      grid = new contrib.grid({rows: 12, cols: 12, screen: screen})

var deploymentsTable = grid.set(0,0,2,5, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Deployments', columnWidth: [25, 7, 7, 10, 10, 3]}
)
var servicesTable = grid.set(0,5,2,5, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Services', columnWidth: [20, 10, 10, 10, 10]}
)
var minikubeTable = grid.set(0,10,2,2, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Minikube Status', columnWidth: [10, 10]}
)
var podTable = grid.set(2,0,6,6, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Pods', columnWidth: [40, 8, 8, 10, 10]}
)
var replicationSetTable = grid.set(2,6,2,6, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Replication Sets', columnWidth: [40, 10, 10, 10, 5]}
)
var jobTable = grid.set(4,6,2,6, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Jobs', columnWidth: [40, 10, 10, 10, 5]}
)
var secretTable = grid.set(6,6,2,6, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Secrets', columnWidth: [20, 40, 10, 10]}
)
var configmapTable = grid.set(8,6,2,6, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Config Maps', columnWidth: [20, 40, 10, 10]}
)
var endpointsTable = grid.set(8,0,2,3, contrib.table,
  {keys: true, fg: 'green', interactive: false, label: 'Minikube Status', columnWidth: [10, 10, 10]}
)

function getMinikubeStatus() {
  var data = [];
  var minikubeStatus = shell.exec("minikube status", {silent: true});
  var headers = ['PROCESS', 'STATUS']

  minikubeStatus.split("\n").forEach(function(e){
    row = e.split(": ");
    if(row.length == 2){ data.push(row) }
  })
  minikubeTable.setData({headers: headers, data: data})
}

function getKubectl(command, table) {
  var data = [];
  var get = shell.exec(command, {silent: true});
  var headers = get.split("\n").slice(0, 1)[0].trim().split(/\s+/);

  get.split("\n").slice(1, -1).forEach(function(e){
    row = e.trim().split(/\s+/);
    data.push(row)
  })
  table.setData({headers: headers, data: data})
}

getMinikubeStatus();
getKubectl("kubectl get pods", podTable);
getKubectl("kubectl get deployments", deploymentsTable);
getKubectl("kubectl get services", servicesTable);
getKubectl("kubectl get rs", replicationSetTable);
getKubectl("kubectl get job", jobTable);
getKubectl("kubectl get secret", secretTable);
getKubectl("kubectl get configmap", configmapTable);
getKubectl("kubectl get endpoints", endpointsTable);

setInterval(function(){
  getMinikubeStatus();
  getKubectl("kubectl get pods", podTable);
  getKubectl("kubectl get deployments", deploymentsTable);
  getKubectl("kubectl get services", servicesTable);
  getKubectl("kubectl get rs", replicationSetTable);
  getKubectl("kubectl get job", jobTable);
  getKubectl("kubectl get secret", secretTable);
  getKubectl("kubectl get configmap", configmapTable);
  getKubectl("kubectl get endpoints", endpointsTable);
}, 3000);

screen.key(['escape', 'q', 'C-c'], function(ch, key) { return process.exit(0); });
screen.on('resize', function() {
  minikubeTable.emit('attach');
  podTable.emit('attach');
  deploymentsTable.emit('attach');
});
screen.render();