require("common.globals")
require("common.class")
local Util = require("common.util")
local Field = require("api.page.field")

---@class LinkField: Field
---@field link Page
local LinkField = {
    __name = "LinkField"
}

---Create a new LinkField instance
---@param params? LinkField # initial parameters
---@return LinkField
function LinkField.new(params)
    params = params or {}

    params.link = params.link or nil

    return CreateInstance(LinkField, params, Field)
end

function LinkField:_navigate()
    local parentPage = self:getParentPage()
    if parentPage and parentPage.viewHandler then
        game.Log(tostring(self) .. " viewHandler:navigate(" .. tostring(self.link) .. ") called", game.LOGGER_INFO)
        parentPage.viewHandler:navigate(self.link)
        return true
    else
        local target = (parentPage and parentPage.viewHandler or "PageView")
        game.Log(tostring(self) .. " can't access " .. tostring(target) .. " instance", game.LOGGER_ERROR)
    end
end

---@param button integer # options are under the `game` table prefixed with `BUTTON`
---@return boolean # true if further button input processing should be stopped, otherwise false
function LinkField:handleButtonInput(button)
    if not self.link then
        game.Log(tostring(self) .. " does not have a valid link", game.LOGGER_ERROR)
        return false
    end

    if button == game.BUTTON_STA then
        self:_navigate()
    end

    return false
end

---@param x number
---@param y number
---@param button integer
---@return boolean # true if further button input processing should be stopped, otherwise false
function LinkField:handleMouseInput(x, y, button)
    if not Util.areaOverlap(x, y, self.posX, self.posY, self.aabbW, self.aabbH) then
        return false
    end

    if not self.link then
        game.Log(tostring(self) .. " does not have a valid link", game.LOGGER_ERROR)
        return false
    end

    if button == game.MOUSE_LEFT then
        self:_navigate()
    end
end

return LinkField