!752

static S team; // null if not on slack

static S botName;

p {

  load("team");

  load("botName");

}

synchronized answer {

  if (matchAny(litlist("are we on slack", "are you on slack"), s))

    if (joined())

      ret "Yes, in team " + domain() + (hasToken() ? ", with token" : ", but need a token in " + getTokenFile().getAbsolutePath());

    else

      ret "No, type 'please join slack team nlbots' or similar to join a team.";

  if "please join slack team *" {

    if (!master()) ret "You're not my master";

    if (joined()) ret "Joined already (team " + domain() + "), type 'please leave slack' to leave.";

    S teamName = dropSuffix(".slack.com", m.unq(0));

    if (!checkTeamName(teamName)) ret "Bad team name: " + teamName;

    team = teamName;

    save("team");

    if (hasToken())

      ret "OK.";

    else

      ret "OK. Now I need a token for " + domain() + " in " + getTokenFile().getAbsolutePath();

  }

  if "please leave slack" {

    if (!master()) ret "You're not my master";

    if (!joined()) ret "Not there anyway, type 'please join slack' to join.";

    team = null;

    save("team");

    ret "OK, left slack team " + domain();

  }

  if "slack bot name" {

    if (!joined()) ret "I'm not on slack.com, type 'please join slack' to join it.";

    ret botName == null ? botName : "No bot name - posting as user as defined by token";

  }

  if "set slack bot name to *" {

    S name = m.unq(0);

    if (!isIdentifier(name)) ret "Oops, not an identifier.";

    if (eq(name, "none")) name = null;

    botName = name;

    save("botName");

    ret "OK, bot name saved.";

  }

  if "list slack channels" exceptionToUser {

    if (!joined()) ret "I'm not on slack.com, type 'please join slack' to join it.";

    Map map = slack("channels.list", "exclude_archived", "1");

    new L<S> l;

    l.add("Channels list for " + domain());

    l.add("");

    int numJoined = 0;

    L<Map> channels = cast map.get("channels");

    for (Map c : channels) {

      S name = getString(c, "name");

      L members = cast c.get("members");

      boolean in = isTrue(c.get("isMember"));

      if (in) ++numJoined;

      l.add("#" + name + ", members: " + l(members) + (in ? " (JOINED)" : ""));

    }

    l.add("");

    l.add(numJoined == 0 ? "I have not joined any channels, please type 'join slack channel *' to do it." : "I am in " + n(numJoined, "channel") + ".");

    ret slackSnippet(joinLines(l));

  }

  if "join slack channel *" {

    S name = dropPrefix("#", m.unq(0));

    if (!isIdentifier(name)) ret "Bad channel name: " + name;

    Map map = slack("channels.join", "name", name);

    boolean ok = isTrue(map.get("ok"));

    boolean alreadyIn = isTrue(map.get("already_in_channel"));

    ret !ok ? "Error... " + structure(map) : (alreadyIn ? "OK (already in)" : "OK, joined " + quote(name) + "!");

  }

  if "leave slack channel *" {

    //TODO

  }

  if "slack test post in *" exceptionToUser {

    S name = dropPrefix("#", m.unq(0));

    if (!isIdentifier(name)) ret "Bad channel name: " + name;

    S channelID = slackGetChannelID(getToken(), name);

    if (empty(channelID)) ret "Channel " + quote(name) + "not found";

    Map map = slack("chat.postMessage",

      "channel", channelID,

      "text", "Test post from Eleutheria",

      "username", botName,

      "as_user", botName == null? "true" : null);

    boolean ok = isTrue(map.get("ok"));

    ret ok ? "OK!" : "Error... " + structure(map);

  }

}

static S domain() {

  ret team == null ? null : team + ".slack.com";

}

static boolean joined() {

  ret team != null;

}

static boolean checkTeamName(S teamName) {

  ret isIdentifier(teamName);

}

static File getTokenFile() {

  ret secretProgramFile(team);

}

static boolean hasToken() {

  File file = getTokenFile();

  if (!file.exists()) saveTextFile(file, "");

  ret nempty(getToken());

}

static S getToken() {

  ret trim(loadTextFile(getTokenFile()));

}

static Map slack(S cmd, S... params) {

  ret slack(cmd, litmap(params));

}

static Map slack(S cmd, Map<S, S> params) {

  Map postData = new TreeMap(params);

  postData.put("token", getToken());

  ret jsonDecodeMap(doPost(postData, "https://slack.com/api/" + cmd));

}