package main

import (
	"github.com/gizak/termui"
	termbox "github.com/nsf/termbox-go"
)

const (
	CommandMode = "command"
	InsertMode  = "insert"
	SearchMode  = "search"
)

type AppContext struct {
	EventQueue chan termbox.Event
	Service    *SlackService
	Body       *termui.Grid
	View       *View
	Config     *Config
	Mode       string
}

// CreateAppContext creates an application context which can be passed
// and referenced througout the application
func CreateAppContext(flgConfig string) (*AppContext, error) {
	// Load config
	config, err := NewConfig(flgConfig)
	if err != nil {
		return nil, err
	}

	// Create Service
	svc := NewSlackService(config.SlackToken)

	// Create ChatView
	view := CreateChatView(svc)

	return &AppContext{
		EventQueue: make(chan termbox.Event, 20),
		Service:    svc,
		View:       view,
		Config:     config,
		Mode:       CommandMode,
	}, nil
}