local _G = _G
local PitBull4 = _G.PitBull4
local L = PitBull4.L

local values = {
	disabled = L["Disable"],
	solo = L["Solo"],
	party = L["Party"],
	raid = L["5-man raid"],
	raid10 = L["10-man raid"],
	raid15 = L["15-man raid"],
	raid20 = L["20-man raid"],
	raid25 = L["25-man raid"],
	raid40 = L["40-man raid"],
}
--- Return the select values dictionary used by PitBull4 to choose config mode.
-- @usage local values = PitBull4:GetConfigModeValues()
-- @return an AceConfig-3.0-compliant select values dictionary.
function PitBull4:GetConfigModeValues()
	return values
end

--- Return whether PitBull4 is in config mode, and if so, what type.
-- @usage local config_mode = PitBull4:IsInConfigMode()
-- @return nil meaning disabled or one of the keys from PitBull4:GetConfigModeValues() (except "disabled")
function PitBull4:IsInConfigMode()
	return self.config_mode
end

local function should_show_header(config_mode, header)
	if not config_mode then
		return false
	end
	
	if config_mode == "solo" then
		return header.show_solo
	end
	
	if config_mode == "party" and header.super_unit_group ~= "party" then
		return false
	end
	
	return true
end

--- Set the config mode type.
-- This will error if you pass in a wrong param. See PitBull4:GetConfigModeValues().
-- @param kind nil or "disabled" to disable, or one of the other keys from PitBull4:GetConfigModeValues().
-- @usage PitBull4:SetConfigMode(nil)
-- @usage PitBull4:SetConfigMode("disabled")
-- @usage PitBull4:SetConfigMode("solo")
function PitBull4:SetConfigMode(kind)
	if kind ~= nil and not values[kind] then
		error(("%q is not a valid option to pass to PitBull4:SetConfigMode"):format(kind), 2)
	elseif InCombatLockdown() then
		error("Cannot call PitBull4:SetConfigMode while in combat lockdown.")
	end
	if kind == "disabled" then
		kind = nil
	end
	if PitBull4.config_mode == kind then
		return
	end
	if kind and PitBull4.config_mode then -- swapping between two different types
		PitBull4.config_mode = nil
		PitBull4.StateHeader:SetAttribute("config_mode", nil)
	
		self:RecheckConfigMode()
	end
	
	PitBull4.config_mode = kind
	PitBull4.StateHeader:SetAttribute("config_mode", kind)
	
	self:RecheckConfigMode()
end

function PitBull4:RecheckConfigMode()
	local kind = PitBull4.config_mode
	
	for frame in self:IterateSingletonFrames(true) do
		if kind and frame.classification_db.enabled then
			frame:ForceShow()
		else
			frame:UnforceShow()
		end
		frame:Update(true, true)
	end
	
	for header in self:IterateHeaders() do
		if should_show_header(kind, header) and header.group_db.enabled then
			header:ForceShow()
		else
			header:UnforceShow()
		end
	end
end

-- See PitBull4:PLAYER_REGEN_DISABLED() for code that turns config mode off when entering
-- combat.


function PitBull4.Options.get_config_mode_options()
	return {
		name = L["Config mode"],
		desc = L["Show all frames that can be shown, for easy configuration."],
		type = 'select',
		values = PitBull4:GetConfigModeValues(),
		get = function(info)
			return PitBull4:IsInConfigMode() or "disabled"
		end,
		set = function(info, value)
			PitBull4:SetConfigMode(value)
		end,
		disabled = function(info)
			return InCombatLockdown()
		end,
	}
end