-- load types for extension

SkillCard = require "core.card_type.skill"
BasicCard = require "core.card_type.basic"
local Trick = require "core.card_type.trick"
TrickCard, DelayedTrickCard = table.unpack(Trick)
local Equip = require "core.card_type.equip"
_, Weapon, Armor, DefensiveRide, OffensiveRide, Treasure = table.unpack(Equip)

dofile "lua/server/event.lua"
dofile "lua/server/system_enum.lua"
TriggerSkill = require "core.skill_type.trigger"

---@class CardSpec: Card

---@class SkillSpec: Skill

---@alias TrigFunc fun(self: TriggerSkill, event: Event, target: ServerPlayer, player: ServerPlayer):boolean
---@class TriggerSkillSpec: SkillSpec
---@field global boolean
---@field events Event | Event[]
---@field refresh_events Event | Event[]
---@field priority number | table<Event, number>
---@field on_trigger TrigFunc
---@field can_trigger TrigFunc
---@field on_refresh TrigFunc
---@field can_refresh TrigFunc

---@param spec CardSpec
---@return BasicCard
function fk.CreateBasicCard(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = BasicCard:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return TrickCard
function fk.CreateTrickCard(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = TrickCard:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return DelayedTrickCard
function fk.CreateDelayedTrickCard(spec)
		assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = DelayedTrickCard:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return Weapon
function fk.CreateWeapon(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end
		if spec.attack_range then assert(type(spec.attack_range) == "number" and spec.attack_range >= 0) end

    local card = Weapon:new(spec.name, spec.suit, spec.number, spec.attack_range)
    return card
end

---@param spec CardSpec
---@return Armor
function fk.CreateArmor(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = Armor:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return DefensiveRide
function fk.CreateDefensiveRide(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = DefensiveRide:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return OffensiveRide
function fk.CreateOffensiveRide(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = OffensiveRide:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec CardSpec
---@return Treasure
function fk.CreateTreasure(spec)
    assert(type(spec.name) == "string" or type(spec.class_name) == "string")
		if not spec.name then spec.name = spec.class_name
		elseif not spec.class_name then spec.class_name = spec.name end
		if spec.suit then assert(type(spec.suit) == "number") end
		if spec.number then assert(type(spec.number) == "number") end

    local card = Treasure:new(spec.name, spec.suit, spec.number)
    return card
end

---@param spec TriggerSkillSpec
---@return TriggerSkill
function fk.CreateTriggerSkill(spec)
	assert(type(spec.name) == "string")
	--assert(type(spec.on_trigger) == "function")
	if spec.frequency then assert(type(spec.frequency) == "number") end

	local frequency = spec.frequency or Skill.NotFrequent
	local skill = TriggerSkill:new(spec.name, frequency)

	if type(spec.events) == "number" then
		table.insert(skill.events, spec.events)
	elseif type(spec.events) == "table" then
		table.insertTable(skill.events, spec.events)
	end

	if type(spec.refresh_events) == "number" then
		table.insert(skill.refresh_events, spec.refresh_events)
	elseif type(spec.refresh_events) == "table" then
		table.insertTable(skill.refresh_events, spec.refresh_events)
	end

	if type(spec.global) == "boolean" then skill.global = spec.global end

	if spec.on_trigger then skill.trigger = spec.on_trigger end

	if spec.can_trigger then
		skill.triggerable = spec.can_trigger
	end

	if spec.can_refresh then
		skill.canRefresh = spec.can_refresh
	end

	if spec.on_refresh then
		skill.refresh = spec.on_refresh
	end

	if not spec.priority then
		if frequency == Skill.Wake then
			spec.priority = 3
		elseif frequency == Skill.Compulsory then
			spec.priority = 2
		else
			spec.priority = 1
		end
	end
	if type(spec.priority) == "number" then
		for _, event in ipairs(skill.events) do
			skill.priority_table[event] = spec.priority
		end
	elseif type(spec.priority) == "table" then
		for event, priority in pairs(spec.priority) do
			skill.priority_table[event] = priority
		end
	end
	return skill
end