--- @class Selector
--- @field id Id | nil
local selector = {}
selector.__index = selector

local function new()
    return setmetatable({}, selector)
end

--- @param characterId integer | nil
function selector:select(characterId)
    self.id = characterId
end

-- function selector:deselect()
--     self.id = nil
-- end

--- TODO: сделать обработчик селектора
function selector:update(dt)
    if not Tree.controls:isJustPressed("select") then return end

    local mousePosition = Tree.level.camera:toWorldPosition(Vec3 { love.mouse.getX(), love.mouse.getY() }):floor()

    if mousePosition.x >= Tree.level.size.x or mousePosition.y >= Tree.level.size.y or mousePosition.y < 0 or mousePosition.x < 0 then
        return
    end
    local characterId = Tree.level.characterGrid:get(Vec3 { mousePosition.x, mousePosition.y })

    if not characterId and self.id then -- временная обработка события "побежать к точке"
        local char = Tree.level.characters[self.id]
        local charPos = char.logic.mapLogic.position
        local path = (require "lib.pathfinder")(charPos, mousePosition)
        path:pop_front()
        print("Following path: ")
        for p in path:values() do print(p) end
        char:followPath(path)
    end
    self:select(characterId)

    print("[Selector]:", mousePosition, characterId and "selected " .. characterId or "deselected")
end

return {
    new = new
}