local st = require("util.stanza");
local helpers = module:require("mix/helpers");

Participant = {};
Participant.__index = Participant;
function Participant:new(jid, nick)
    return setmetatable({
        jid = jid,
        nick = nick,
    }, Participant);
end

function Participant:from(config)
    return setmetatable(config, Participant);
end

Channel = {}
Channel.__index = Channel;
function Channel:new(jid, name, description, participants, subscriptions, spid, contacts, adhoc)
    return setmetatable({
        jid = jid,
        name = name,
        description = description,
        participants = participants,
        subscriptions = subscriptions,
        spid = spid,
        contacts = contacts,
        adhoc = adhoc,
    }, Channel);
end
function Channel:from(config)
    -- Turn a channel into a Channel object
    local o = setmetatable(config, Channel);
    for i, _ in pairs(o.participants) do
        o.participants[i] = Participant:from(o.participants[i]);
    end
    return o;
end

function Channel:get_spid(jid)
    -- Returns the Stable Participant ID for the *BARE* jid
    return self.spid[jid];
end

function Channel:set_spid(jid, spid)
    -- Sets the Stable Participant ID for the *BARE* jid
    self.spid[jid] = spid;
end

function Channel:find_participant(jid)
    -- Returns the index of a participant in a channel. Returns -1
    -- if the participant is not found
    return helpers.find(self.participants, function(p) return p.jid == jid end);
end

function Channel:is_participant(jid)
    -- Returns true if jid is a participant of the channel. False otherwise.
    local i, _ = self:find_participant(jid);
    return i ~= -1;
end

function Channel:is_subscribed(jid, node)
    -- Returns true of JID is subscribed to node on this channel. Returns false
    -- otherwise.
    return helpers.find_str(self.subscriptions[jid], node) ~= -1;
end

function Channel:debug_print()
    module:log("debug", "Channel %s (%s)", self.jid, self.name);
    module:log("debug", "'%s'", self.description);
    for _, p in pairs(self.participants) do
        module:log("debug", "=> %s (%s)", p.jid, p.nick);
    end
    
    module:log("debug", "Contacts:");
    for _, c in pairs(self.contacts) do
        module:log("debug", "=> %s", c);
    end
    
    if self.subscriptions then
        module:log("debug", "Subscriptions:");
        for user, subs in pairs(self.subscriptions) do
            module:log("debug", "[%s]", user);
            for _, sub in pairs(self.subscriptions[user]) do
                module:log("debug", "=> %s", sub);
            end
        end
    end
end

return {
    Channel = Channel,
    Participant = Participant
};