local _, WBT = ...;

local Options = {};
WBT.Options = Options;

local GUI = WBT.GUI;
local Util = WBT.Util;
local BossData = WBT.BossData;
local Sound = WBT.Sound;

Options.NUM_CYCLES_TO_SHOW_MAX = 5;

----- Setters and Getters for options -----

local OptionsItem = {};

function OptionsItem.CreateDefaultGetter(var_name)
    local function getter()
        return WBT.db.global[var_name];
    end
    return getter;
end

function OptionsItem.CreateDefaultSetter(var_name)
    local function setter(state)
        WBT.db.global[var_name] = state;
        WBT.GUI:Rebuild();
    end
    return setter;
end

function OptionsItem:New(var_name, status_msg)
    local ci = {
        get = OptionsItem.CreateDefaultGetter(var_name);
        set = OptionsItem.CreateDefaultSetter(var_name);
        msg = status_msg,
    };

    setmetatable(ci, self);
    self.__index = self;

    return ci;
end

local ToggleItem = {};

function ToggleItem:New(var_name, status_msg)
    local ti = OptionsItem:New(var_name, status_msg);

    setmetatable(ti, self);
    self.__index = self;

    return ti;
end

function ToggleItem.GetColoredStatus(status_var)
    local color = Util.COLOR_RED;
    local status = "disabled";
    if status_var then
        color = Util.COLOR_GREEN;
        status = "enabled";
    end

    return color .. status .. Util.COLOR_DEFAULT;
end

function ToggleItem:PrintFormattedStatus(status_var)
    if self.msg then
        WBT:Print(self.msg .. " " .. self.GetColoredStatus(status_var) .. ".");
    end
end

function ToggleItem:Toggle()
    local new_state = not self.get();
    self.set(new_state);
    -- FIXME: Commented out for now. Was intended for when called from CLI.
--    self:PrintFormattedStatus(new_state);
    WBT.GUI:Update();
end

local SelectItem = {};

function SelectItem:OverrideGetter(default_key)
    local default_getter_fptr = self.get;
    self.get = function()
        local key = default_getter_fptr();
        if key == nil then
            return default_key;
        end
        return key;
    end
end

function SelectItem:New(var_name, status_msg, mkt, mkt_options_key, mkt_values_key, default_key)
    local si = OptionsItem:New(var_name, status_msg);
    si.mkt = mkt; -- MultiKeyTable
    si.mkt_options_key = mkt_options_key;
    si.mkt_values_key = mkt_values_key;
    si.options = si.mkt:GetAllSubVals(si.mkt_options_key);

    setmetatable(si, self);
    self.__index = self;

    si:OverrideGetter(default_key);

    return si;
end

function SelectItem:Key()
    return self:get();
end

function SelectItem:Value()
    local subtbl = self.mkt:GetSubtbl(self.mkt_options_key, self:Key());
    return subtbl[self.mkt_values_key];
end

local RangeItem = {};

function RangeItem:OverrideGetter(default_val)
    local default_getter = self.get;
    self.get = function()
        local val = default_getter();
        if val == nil then
            return default_val;
        end
        return val;
    end
end

function RangeItem:New(var_name, status_msg, default_val)
    local si = OptionsItem:New(var_name, status_msg);

    setmetatable(si, self);
    self.__index = self;

    si:OverrideGetter(default_val);

    return si;
end

local function ShowGUI(show)
    local gui = GUI;
    if show then
        WBT.db.global.hide_gui = false;
        if gui:ShouldShow() then
            gui:Show();
        else
            WBT:Print("The GUI will show when next you enter a boss zone.");
        end
    else
        WBT.db.global.hide_gui = true;
        gui:Hide();
    end
    gui:Update();
end

function Options.InitializeItems()
    local logger_opts = WBT.Logger.options_tbl;
    local sound_opts =  Sound.sound_tbl;
    Options.show_gui                 = ToggleItem:New("show_gui",                 nil);
    Options.show_boss_zone_only      = ToggleItem:New("show_boss_zone_only",      "Only show GUI in boss zone mode is now");
    Options.lock                     = ToggleItem:New("lock",                     "GUI lock is now");
    Options.global_gui_position      = ToggleItem:New("global_gui_position",      nil);
    Options.sound                    = ToggleItem:New("sound_enabled",            "Sound is now");
    Options.assume_realm_keeps_shard = ToggleItem:New("assume_realm_keeps_shard", "Option to assume realms do not change shards is now");
    Options.multi_realm              = ToggleItem:New("multi_realm",              "Option to show timers for other shards is now");
    Options.highlight                = ToggleItem:New("highlight",                "Highlighting of current zone is now");
    Options.show_saved               = ToggleItem:New("show_saved",               "Showing if saved on boss (on timer) is now");
    Options.show_realm               = ToggleItem:New("show_realm",               "Showing realm on which timer was recorded is now");
    Options.dev_silent               = ToggleItem:New("dev_silent",               "Silent mode is now");
    Options.log_level                = SelectItem:New("log_level",                "Log level is now",         logger_opts.tbl, logger_opts.keys.option, logger_opts.keys.log_level, WBT.defaults.global.log_level);
    Options.spawn_alert_sound        = SelectItem:New("spawn_alert_sound",        "Spawn alert sound is now", sound_opts.tbl,  sound_opts.keys.option,  sound_opts.keys.file_id,    WBT.defaults.global.spawn_alert_sound);
    Options.spawn_alert_sec_before   = RangeItem:New("spawn_alert_sec_before",    "Spawn alert sound sec before is now", WBT.defaults.global.spawn_alert_sec_before);
    Options.cyclic                   = ToggleItem:New("cyclic",                   "Cyclic mode is now");
    Options.num_cycles_to_show       = RangeItem:New("num_cycles_to_show",        "Number of cycles that expired timers are shown is now", WBT.defaults.global.max_num_cycles);

    -- Wrapping in 'play sound file when selected'.
    local spawn_alert_sound_set_temp = Options.spawn_alert_sound.set;
    Options.spawn_alert_sound.set = function(state)
        spawn_alert_sound_set_temp(state);
        Util.PlaySoundAlert(Options.spawn_alert_sound:Value());
    end

    -- Overriding setter for log_level to use same method as from CLI:
    Options.log_level.set = function(state)
        WBT.Logger.SetLogLevel(state);
    end

    -- Needs to update window position.
    local global_gui_position_set_temp = Options.global_gui_position.set;
    Options.global_gui_position.set = function(state)
        WBT.GUI:SaveGUIPosition();
        global_gui_position_set_temp(state);
        WBT.GUI:InitPosition();
    end

    -- Option show_gui is a bit complicated. Override overything:
    Options.show_gui.set = function(state)
        ShowGUI(state);  -- Makes the option more snappy.
    end
    Options.show_gui.get = function()
        return not WBT.db.global.hide_gui;  -- I don't want to rename db variable, so just negate (hide -> show).
    end
end

----- Slash commands -----

local function PrintHelp()
    WBT.AceConfigDialog:Open(WBT.addon_name);
    local indent = "   ";
    WBT:Print("WorldBossTimers slash commands:");
    WBT:Print("/wbt reset"       .. " --> Reset all timers");
    WBT:Print("/wbt gui-reset"   .. " --> Reset the position of the timers window");
    WBT:Print("/wbt saved"       .. " --> Print your saved bosses");
    WBT:Print("/wbt show"        .. " --> Show the timers window");
    WBT:Print("/wbt hide"        .. " --> Hide the timers window");
    WBT:Print("/wbt gui-toggle"  .. " --> Toggle visibility of the timers window");
    WBT:Print("/wbt log <level>" .. " --> Set log level for debug purposes");
end

function Options.SlashHandler(input)
    local arg1, arg2 = strsplit(" ", input);
    if arg1 then
        arg1 = arg1:lower();
    end

    if arg1 == "hide" then
        ShowGUI(false);
    elseif arg1 == "show" then
        ShowGUI(true);
    elseif arg1 == "gui-toggle" then
        Options.show_gui:Toggle();
    elseif arg1 == "share" then
        WBT.Functions.AnnounceTimerInChat();
    elseif arg1 == "r"
            or arg1 == "reset"
            or arg1 == "restart" then
        WBT.ResetKillInfo();
    elseif arg1 == "s"
            or arg1 == "saved"
            or arg1 == "save" then
        WBT.PrintKilledBosses();
    elseif arg1 == "request" then
        WBT.RequestKillData();
    elseif arg1 == "sound" then
        local sound_type_args = {Sound.SOUND_CLASSIC, Sound.SOUND_FANCY};
        if Util.SetUtil.ContainsValue(sound_type_args, arg2) then
            WBT.db.global.sound_type = arg2;
            WBT:Print("SoundType: " .. arg2);
        else
            Options.sound:Toggle();
        end
    elseif arg1 == "cyclic" then
        Options.cyclic:Toggle();
    elseif arg1 == "multi" then
        Options.multi_realm:Toggle();
    elseif arg1 == "zone" then
        Options.show_boss_zone_only:Toggle();
    elseif arg1 == "lock" then
        Options.lock:Toggle();
    elseif arg1 == "gui-reset" then
        WBT.GUI:ResetPosition();
    elseif arg1 == "log" then
        WBT.Logger.SetLogLevel(arg2);
    else
        PrintHelp();
    end
end

-- Counter so I don't have to increment order all the time.
-- Option items are ordered as they are inserted.
local t_cnt = { 0 };
function t_cnt:plusplus()
    self[1] = self[1] + 1;
    return self[1];
end

----- Options table -----
function Options.InitializeOptionsTable()
    local desc_toggle = "Enable/Disable";

    Options.optionsTable = {
      type = "group",
      childGroups = "select",
      args = {
        hints = {
            name =  -- Hint_1
                    Util.ColoredString(Util.COLOR_ORANGE, "Hint: ") ..
                    "Control-click a timer that is shown in " .. Util.ColoredString(Util.COLOR_RED, "red") .. " to reset it.\n" ..
                    -- Hint_2
                    Util.ColoredString(Util.COLOR_ORANGE, "Hint: ") ..
                    "Control-shift-click to reset any timer.\n",
            order = t_cnt:plusplus(),
            type = "description",
            fontSize = "medium",
            width = "full",
        },
        _add_distance_to_next_option = {
            name = "",
            order = t_cnt:plusplus(),
            type = "description",
            width = "full",
        },
        show = {
            name = "Show GUI",
            order = t_cnt:plusplus(),
            desc = desc_toggle,
            type = "toggle",
            width = "full",
            set = function(info, val) Options.show_gui:Toggle(); end,
            get = function(info) return Options.show_gui.get(); end,
        },
        show_boss_zone_only = {
            name = "Only show GUI in boss zones",
            order = t_cnt:plusplus(),
            desc = desc_toggle,
            type = "toggle",
            width = "full",
            set = function(info, val) Options.show_boss_zone_only:Toggle(); end,
            get = function(info) return Options.show_boss_zone_only.get(); end,
        },
        lock = {
            name = "Lock GUI",
            order = t_cnt:plusplus(),
            desc = "Toggle if the GUI should be locked or movable",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.lock:Toggle(); end,
            get = function(info) return Options.lock.get() end,
        },
        global_gui_position = {
            name = "Account-wide GUI position",
            order = t_cnt:plusplus(),
            desc = "When enabled the GUI position is the same for characters",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.global_gui_position:Toggle(); end,
            get = function(info) return Options.global_gui_position.get(); end,
        },
        sound = {
            name = "Sound",
            order = t_cnt:plusplus(),
            desc = desc_toggle,
            type = "toggle",
            width = "full",
            set = function(info, val) Options.sound:Toggle(); end,
            get = function(info) return Options.sound.get(); end,
        },
        assume_realm_keeps_shard = {
            name = "Assume realms do not change shards",
            order = t_cnt:plusplus(),
            desc = "Uses the last known shard ID for this realm when the current shard ID is unknown. " ..
                   "This may lead to incorrect timers.",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.assume_realm_keeps_shard:Toggle(); end,
            get = function(info) return Options.assume_realm_keeps_shard.get(); end,
        },
        multi_realm = {  -- NOTE: Should be named multi_shard, but to keep user set option values, it was not renamed.
            name = "Show timers for other shards",
            order = t_cnt:plusplus(),
            desc = "Shows timers for other shards",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.multi_realm:Toggle(); end,
            get = function(info) return Options.multi_realm.get(); end,
        },
        highlight = {
            name = "Highlight boss in current zone",
            order = t_cnt:plusplus(),
            desc = "The boss in your current zone will have a different color if the current shard ID matches the timer:\n" ..
                    Util.ColoredString(Util.COLOR_LIGHTGREEN, "Green") .. " if timer not expired\n" ..
                    Util.ColoredString(Util.COLOR_YELLOW, "Yellow") .." if timer expired (with Cyclic mode)",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.highlight:Toggle(); end,
            get = function(info) return Options.highlight.get(); end,
        },
        show_saved = {
            name = "Show if saved",
            order = t_cnt:plusplus(),
            desc = "Appends a colored 'X' (" .. Util.ColoredString(Util.COLOR_RED, "X") .. "/" .. Util.ColoredString(Util.COLOR_GREEN, "X") .. ")" ..
                    " after the timer if you are saved for the boss.\n" ..
                    "NOTE: The color of the 'X' has no special meaning, it's just for improved visibility.",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.show_saved:Toggle(); end,
            get = function(info) return Options.show_saved.get(); end,
        },
        show_realm = {
            name = "Show realm",
            order = t_cnt:plusplus(),
            desc = "Shows the first three characters of the realm on which the timer was recorded.",
            type = "toggle",
            width = "full",
            set = function(info, val) Options.show_realm:Toggle(); end,
            get = function(info) return Options.show_realm.get(); end,
        },
        cyclic = {
            name = "Cyclic (show expired)",
            order = t_cnt:plusplus(),
            desc = "If you missed a kill, the timer will wrap around and will now have a red color",
            type = "toggle",
            width = "normal",
            set = function(info, val) Options.cyclic:Toggle(); end,
            get = function(info) return Options.cyclic.get(); end,
        },
        num_cycles_to_show = {
            name = "Number of cycles to show",
            order = t_cnt:plusplus(),
            desc = "If set to the max value, then expired timers will always be shown",
            type = "range",
            min = 0,
            max = Options.NUM_CYCLES_TO_SHOW_MAX,
            softMin = 0,
            softMax = Options.NUM_CYCLES_TO_SHOW_MAX,
            bigStep = 1,
            isPercent = false,
            width = "normal",
            set = function(info, val) Options.num_cycles_to_show.set(val); end,
            get = function(info) return Options.num_cycles_to_show.get(); end,
        },
        _fill_rest_of_line = {
            name = "",
            order = t_cnt:plusplus(),
            type = "description",
            width = "full",
        },
        log_level = {
            name = "Log level",
            order = t_cnt:plusplus(),
            desc = "Log level",
            type = "select",
            style = "dropdown",
            width = "normal",
            values = Options.log_level.options,
            set = function(info, val) Options.log_level.set(val); end,
            get = function(info) return Options.log_level.get(); end,
        },
        spawn_alert_sound = {
            name = "Spawn alert sound",
            order = t_cnt:plusplus(),
            desc = "Sound alert that plays when boss spawns",
            type = "select",
            style = "dropdown",
            width = "normal",
            values = Options.spawn_alert_sound.options,
            set = function(info, val) Options.spawn_alert_sound.set(val); end,
            get = function(info) return Options.spawn_alert_sound.get(); end,
        },
        spawn_alert_sec_before = {
            name = "Alert sec before spawn",
            order = t_cnt:plusplus(),
            desc = "How many seconds before boss spawn the alert will happen",
            type = "range",
            min = 0,
            max = 60*5,
            softMin = 0,
            softMax = 30,
            bigStep = 1,
            isPercent = false,
            width = "normal",
            set = function(info, val) Options.spawn_alert_sec_before.set(val); end,
            get = function(info) return Options.spawn_alert_sec_before.get(); end,
        },
      }
    }
end

function Options.Initialize()
    Options.InitializeItems();
    Options.InitializeOptionsTable();
end