"use strict";

// example bot

// commands:
// ping
// do - creates a role Testing, assigns it to the member, adds member permission for channel
// undo

var Discordie;
try { Discordie = require("../"); } catch(e) {}
try { Discordie = require("discordie"); } catch(e) {}

var client = new Discordie({autoReconnect: true});
var Events = Discordie.Events;

var auth = { token: "<BOT-TOKEN>" };
try { auth = require("./auth"); } catch(e) {}

client.connect(auth);

client.Dispatcher.on("GATEWAY_READY", e => {
  console.log("Ready");
});

client.Dispatcher.on("MESSAGE_CREATE", e => {
  console.log("new message: ");
  console.log(JSON.stringify(e.message, null, "  "));
  console.log("e.message.content: " + e.message.content);

	var content = e.message.content;

  if (content === "ping") channel.sendMessage("pong");
  if (content === "do") doCommand(e);
  if (content === "undo") undoCommand(e);
});

function onError(e) {
  if (!e) return console.error("Unknown error");

  if(e.response && e.response.error)
    return console.error(e.response.error);

  console.error(e.toString());
}

function doCommand(e) {
  var guild = e.message.guild;
  var channel = e.message.channel;
  var member = e.message.member;

  // chain of actions
  console.log(" >> creating role");

  guild.createRole()
    .then(assignRole)
    .catch(onError);

  function assignRole(role) {
    console.log(" >> assigning role");

    member.assignRole(role)
      .then(() => setRolePermissions(role))
      .catch(onError);
  }
  function setRolePermissions(role) {
    console.log(" >> setting role permissions");

    /*
     List of role permissions:
     General: {
       CREATE_INSTANT_INVITE,
       KICK_MEMBERS,
       BAN_MEMBERS,
       ADMINISTRATOR,
       MANAGE_CHANNELS,
       MANAGE_GUILD,
       CHANGE_NICKNAME,
       MANAGE_NICKNAMES,
       MANAGE_ROLES,
       MANAGE_WEBHOOKS,
       MANAGE_EMOJIS,
     },
     Text: {
       READ_MESSAGES,
       SEND_MESSAGES,
       SEND_TTS_MESSAGES,
       MANAGE_MESSAGES,
       EMBED_LINKS,
       ATTACH_FILES,
       READ_MESSAGE_HISTORY,
       MENTION_EVERYONE,
       EXTERNAL_EMOTES,
       ADD_REACTIONS,
     },
     Voice: {
       CONNECT,
       SPEAK,
       MUTE_MEMBERS,
       DEAFEN_MEMBERS,
       MOVE_MEMBERS,
       USE_VAD,
     }
    */

    var perms = role.permissions;
    perms.General.KICK_MEMBERS = true;
    perms.General.BAN_MEMBERS = true;
    perms.Text.MENTION_EVERYONE = true;

    // 'role.permissions' object resets on error

    var newRoleName = "Testing";
    var color = 0xE74C3C; // RED
    var hoist = true; // show separate group

    role.commit(newRoleName, color, hoist)
      .then(createChannelPermissions)
      .catch(onError);
  }
  function createChannelPermissions() {
    console.log(" >> creating channel permissions");

    channel.createPermissionOverwrite(member)
      .then(setChannelPermissions)
      .catch(onError);
  }
  function setChannelPermissions(overwrite) {
    console.log(" >> setting channel permissions");

    var allow = overwrite.allow;
    var deny = overwrite.deny;

    /*
     List of channel permissions:
     General: {
     CREATE_INSTANT_INVITE,
     MANAGE_CHANNEL,
     MANAGE_PERMISSIONS
     },
     Text: {
     READ_MESSAGES,
     SEND_MESSAGES,
     SEND_TTS_MESSAGES,
     MANAGE_MESSAGES,
     EMBED_LINKS,
     ATTACH_FILES,
     READ_MESSAGE_HISTORY,
     MENTION_EVERYONE,
     },
     Voice: {
     CONNECT,
     SPEAK,
     MUTE_MEMBERS,
     DEAFEN_MEMBERS,
     MOVE_MEMBERS,
     USE_VAD,
     }
     */

    // .Text only exists for text channels
    // .Voice only exists for voice channels
    // .General exists for both

    allow.General.MANAGE_CHANNEL = true;
    allow.General.MANAGE_PERMISSIONS = true;

    overwrite.commit()
      .then((overwrite) => console.log(" >> finished"))
      .catch(onError);
  }
}

function undoCommand(e) {
  var channel = e.message.channel;
  var member = e.message.member;

  removeOverwrite();
  function removeOverwrite() {
    console.log(" >> removing overwrite");
    var overwrites = channel.permission_overwrites;
    var overwrite = overwrites.find(o => (o.id == member.id));
    if (!overwrite) {
      console.log(" >> no overwrite");
      unassignRoleTesting();
      return;
    }
    overwrite.delete()
      .then(unassignRoleTesting)
      .catch(onError);
  }
  function unassignRoleTesting() {
    console.log(" >> unassigning role");
    var role = member.roles.find(r => r.name == "Testing");
    if (!role) {
      console.log(" >> no role, finished");
      return;
    }
    member.unassignRole(role)
      .then(() => deleteRoleTesting(role))
      .catch(onError);
  }
  function deleteRoleTesting(role) {
    console.log(" >> unassigning role");

    role.delete()
      .then((overwrite) => console.log(" >> finished"))
      .catch(onError);
  }
}

client.Dispatcher.onAny((type, e) => {
  var ignore = [
    "READY",
    "GATEWAY_READY",
    "ANY_GATEWAY_READY",
    "GATEWAY_DISPATCH",
    "PRESENCE_UPDATE",
    "TYPING_START",
  ];
  if(ignore.find(t => (t == type || t == e.type))) {
    return console.log("<" + type + ">");
  }

  console.log("\nevent " + type);
  return console.log("args " + JSON.stringify(e));
});