// OpenSAPS - Open Slack API server for everyone.
//
// Copyright (c) 2017, Stanislav N. aka pztrn.
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
package context

import (
    // stdlib
    "os"

    // local
    "lab.pztrn.name/pztrn/opensaps/config/interface"
    "lab.pztrn.name/pztrn/opensaps/pushers/interface"
    "lab.pztrn.name/pztrn/opensaps/slack/apiserverinterface"
    "lab.pztrn.name/pztrn/opensaps/slack/message"

    // other
    "lab.pztrn.name/golibs/flagger"
    "lab.pztrn.name/golibs/mogrus"
)

type Context struct {
    Config configurationinterface.ConfigurationInterface
    Flagger *flagger.Flagger
    Log *mogrus.LoggerHandler
    Pushers map[string]pusherinterface.PusherInterface
    SlackAPIServer slackapiserverinterface.SlackAPIServerInterface
}

func (c *Context) Initialize() {
    c.Pushers = make(map[string]pusherinterface.PusherInterface)

    l := mogrus.New()
    l.Initialize()
    c.Log = l.CreateLogger("opensaps")
    c.Log.CreateOutput("stdout", os.Stdout, true)

    c.Flagger = flagger.New(c.Log)
    c.Flagger.Initialize()
}

// Registers configuration interface.
func (c *Context) RegisterConfigurationInterface(ci configurationinterface.ConfigurationInterface) {
    c.Config = ci
    c.Config.Initialize()
}

// Registers Pusher interface.
func (c *Context) RegisterPusherInterface(name string, iface pusherinterface.PusherInterface) {
    c.Pushers[name] = iface
    c.Pushers[name].Initialize()
}

// Registers Slack API HTTP server control structure.
// Russians will have pretty good luff on variable name.
func (c *Context) RegisterSlackAPIServerInterface(sasi slackapiserverinterface.SlackAPIServerInterface) {
    c.SlackAPIServer = sasi
    c.SlackAPIServer.Initialize()
}

func (c *Context) SendToPusher(protocol string, connection string, data slackmessage.SlackMessage) {
    pusher, ok := c.Pushers[protocol]
    if !ok {
        c.Log.Errorf("Pusher not found (or initialized) for protocol '%s'!", protocol)
    }

    pusher.Push(connection, data)
}

// Shutdown everything.
func (c *Context) Shutdown() {
    c.SlackAPIServer.Shutdown()

    for _, pusher := range c.Pushers {
        pusher.Shutdown()
    }
}