-- twi_mods/list_moderators/init.lua
-- Send list of moderators after join
--[[
    Copyright © 2024 1F616EMO

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
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    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
]]

local S = core.get_translator("list_moderators")

local function is_afk() return false end

if core.global_exists("afk_indicator") then
    is_afk = function(name)
        local duration = afk_indicator.get(name)
        return duration and duration > 5 * 60 or false
    end
end

local color = core.get_color_escape_sequence("DarkOrange")
local alt_color = core.get_color_escape_sequence("DarkCyan")

local busy_mods = {}

local function get_chat_string(name)
    local list_moderators = {}
    local list_helpers = {}
    for _, player in pairs(core.get_connected_players()) do
        local player_name = player:get_player_name()
        local privs = core.get_player_privs(player_name)
        local list
        if privs.ban == true then
            list = list_moderators
        elseif privs.role_helper == true then
            list = list_helpers
        end
        if list then
            local display = player_name
            local flags = {}

            if name == player_name then
                flags[#flags + 1] = S("You")
            end

            if privs.server then
                flags[#flags + 1] = S("Admin")
            end

            if is_afk(player_name) then
                flags[#flags + 1] = S("AFK")
            end

            if busy_mods[player_name] then
                flags[#flags + 1] = S("Busy")
            end

            if #flags > 0 then
                display = display .. " " ..
                    alt_color .. "(" .. table.concat(flags, ", ") .. ")" .. color
            end

            list[#list + 1] = display
        end
    end
    local rtn
    if #list_moderators > 0 then
        rtn = color ..
            S("List of moderators online: @1", table.concat(list_moderators, ", "))
    else
        rtn = color ..
            S("No moderators online. Seek help by typing /report in the chatroom.")
    end
    if #list_helpers > 0 then
        rtn = rtn .. "\n" .. color .. S("List of helpers online: @1", table.concat(list_helpers, ", "))
    end
    return rtn
end

core.register_on_joinplayer(function(player)
    local name = player:get_player_name()
    core.after(0.5, function()
        if core.get_player_by_name(name) then
            core.chat_send_player(name, get_chat_string(name))
        end
    end)
end)

core.register_on_leaveplayer(function(player)
    local name = player:get_player_name()
    busy_mods[name] = nil
end)

core.register_on_priv_revoke(function(name, _, priv)
    local privs = core.get_player_privs(name)
    if priv == "ban" and not privs.role_helper
        or privs == "role_helper" and not privs.ban then
        busy_mods[name] = nil
    end
end)

core.register_chatcommand("mods_busy", {
    description = S("Set yourself as busy on the moderator list"),
    func = function(name)
        local privs = core.get_player_privs(name)
        if not (privs.ban or privs.role_helper) then
            return false, S("Insufficant privileges!")
        end
        local prev_status = busy_mods[name]
        busy_mods[name] = prev_status == nil and true or nil
        return true, prev_status and S("Set to normal.") or S("Set to busy.")
    end,
})

core.register_chatcommand("list_mods", {
    description = S("List all moderators and helpers"),
    func = function(name)
        return true, get_chat_string(name)
    end,
})