--- @class Effect
--- @field tag string
local effect = {}
effect.__index = effect

function effect:beforeBirth() end

function effect:afterBirth() end

function effect:beforeDeath() end

function effect:afterDeath() end

--- пока что это единственный метод, который работает
--- @param owner Character
--- @return Task<nil>|nil
function effect:beforeTurn(owner) end

function effect:afterTurn() end

function effect:beforeCast() end

function effect:afterCast() end

--- @param damage integer
function effect:beforeAttack(damage) end

function effect:afterAttack() end

--- @param damage integer
function effect:beforeDamage(damage) end

function effect:afterDamage() end

--- @param amountHp integer кол-во хп для регена
function effect:beforeRegeneration(amountHp) end

function effect:afterRegeneration() end

--- @param other Effect
--- @return Effect|nil
function effect:sum(other) end

function effect:update(dt) end

function effect:draw() end

--- @todo переделать дату и прочее
--- @param data {tag: string, beforeBirth: fun(owner: Character)?, beforeDeath: fun(owner: Character)?, beforeTurn: (fun(owner: Character): Task<nil>|nil), afterTurn: (fun(owner: Character): Task<nil>|nil), sum: fun(owner: Character)?}
--- @return Effect
local function new(data)
    local newEffect = setmetatable({
        tag = data.tag,
        beforeBirth = data.beforeBirth,
        beforeDeath = data.beforeDeath,
        -- beforeTurn = data.beforeTurn,
        afterTurn = data.afterTurn,
        sum = data.sum
    }, effect)

    function newEffect:beforeTurn(owner)
        return data.beforeTurn(owner)
    end

    return newEffect
end

return { new = new }