import types from '../types'
import moment from 'moment'
let FileSaver = require('file-saver')

const systemInitialState = {
  loading: false,
  error: null,

  site: {
    name: 'Lens Cortex',
  },
  server: {
    connected: false,
    status: "disconnected",
    error: null,
  },
  relay: {
    connected: false,
    status: "unknown",
    error: null,
  },
  rpc: {
    connected: false,
    status: "unknown",
    cpu_cmd: "unknown",
    gpu_cmd: "unknown",
    error: null,
  },
  cmd: {
    loading: false,
    loaded: false,
    name: null,
    error: null,
    stdout: "",
    stderr: "",
  },
  stdout: "",
  stderr: "",
}

const systemReducer = (state = systemInitialState, action) => {
  switch(action.type) {
    case types.socket.connect:
    case types.socket.reconnecting:
      return {
        ...state,
        server: {
          status: 'connected',
          connected: true,
          error: null,
        },
      }
    case types.socket.reconnect:
      return {
        ...state,
        server: {
          status: 'reconnecting (attempt ' + action.attempt + ')',
          connected: false,
          error: null,
        },
      }
    case types.socket.connect_error:
    case types.socket.reconnect_error:
    case types.socket.disconnect:
    case types.socket.reconnect_failed:
      return {
        ...state,
        server: {
          status: 'disconnected',
          connected: false,
          error: action.error || null,
        },
      }
    case types.socket.error:
      return {
        ...state,
        server: {
          ...state.socket,
          error: action.error,
        },
      }
    case types.system.relay_connected:
      return {
        ...state,
        relay: {
          status: 'connected',
          connected: true,
          error: null,
        }
      }
    case types.system.relay_disconnected:
      return {
        ...state,
        relay: {
          status: 'disconnected',
          connected: false,
          error: null,
        },
        rpc: {
          status: 'disconnected',
          connected: false,
          error: null,
        },
      }
    case types.system.rpc_connected:
      return {
        ...state,
        rpc: {
          status: 'connected',
          connected: true,
          error: null,
        }
      }
    case types.system.rpc_connected:
      return {
        ...state,
        rpc: {
          status: 'disconnected',
          connected: false,
          error: null,
        }
      }
    case types.system.running_command:
      return {
        ...state,
        cmd: {
          loading: true,
          loaded: false,
          name: action.cmd,
          error: null,
          stdout: null,
          stderr: null,
        }
      }
    case types.system.command_output:
      return {
        ...state,
        cmd: {
          loading: false,
          loaded: true,
          name: action.data.cmd,
          error: action.data.error,
          stdout: action.data.stdout,
          stderr: action.data.stderr,
        }
      }
    case types.task.task_begin:
      return {
        ...state,
        stdout: "",
        stderr: "",
      }
    case types.system.stdout:
      return {
        ...state,
        stdout: state.stdout + action.data,
      }
    case types.system.stderr:
      return {
        ...state,
        stderr: state.stderr + action.data,
      }
    default:
      return state
  }
}

export default systemReducer