local rostermanager = require "core.rostermanager";
local host = module.host;

local default_contacts = module:get_option("default_contacts", {});

module:hook("resource-bind", function(event)
    local user = event.session.username;
    local user_jid = user .. "@" .. host;
    local roster = rostermanager.load_roster(user, host);

    for _, contact in ipairs(default_contacts) do
        local contact_user = contact.jid:match("^([^@]+)@");
        if contact_user ~= user and not roster[contact.jid] then
            -- Add contact to this user's roster
            local groups = {};
            for _, gname in ipairs(contact.groups or {}) do
                groups[gname] = true;
            end
            roster[contact.jid] = {
                subscription = "both";
                name = contact.name;
                groups = groups;
            };
            rostermanager.save_roster(user, host);
            rostermanager.roster_push(user, host, contact.jid);

            -- Add this user to the contact's roster (for bidirectional presence)
            local contact_roster = rostermanager.load_roster(contact_user, host);
            if contact_roster and not contact_roster[user_jid] then
                contact_roster[user_jid] = {
                    subscription = "both";
                    name = user;
                    groups = {};
                };
                rostermanager.save_roster(contact_user, host);
                rostermanager.roster_push(contact_user, host, user_jid);
            end
        end
    end
end);