require("common.class")
local Util = require("common.util")
local ServiceField = require("titlescreen.fields.service.servicefield")

---@class SelfTestStatusEnum
SelfTestStatusEnum = {
    IDLE = 1,
    INPROGRESS = 2,
    OK = 3,
    PASS = 4,
    ERROR = 5
}

---@class SelfTestField: ServiceField
---@field status SelfTestStatusEnum
---@field callback nil|fun(obj: any): SelfTestStatusEnum
---@field _timer number
local SelfTestField = {
    SELFTEST_COLOR_INPROGRESS = {255, 255, 255, 255},
    SELFTEST_COLOR_OK = {0, 255, 0, 255},
    SELFTEST_COLOR_PASS = {255, 255, 0, 255},
    SELFTEST_COLOR_ERROR = {255, 0, 0, 255},
    SELFTEST_INPROGRESS_FREQ = 1 / 20, --20Hz
}

---Create a new SelfTestField instance
---@param o? table
---@return SelfTestField
function SelfTestField:new(o)
    o = o or {}

    o.status = o.status or SelfTestStatusEnum.IDLE
    o.callback = o.callback or nil
    o._timer = 0

    return Inherit(self, o, ServiceField)
end

function SelfTestField:activate(obj)
    if self.callback then
        self.status = self.callback(obj) or SelfTestStatusEnum.INPROGRESS
    end
end

function SelfTestField:drawValue(deltaTime)
    gfx.Translate(self.VALUE_OFFSETX, 0)

    gfx.TextAlign(gfx.TEXT_ALIGN_RIGHT | gfx.TEXT_ALIGN_TOP)
    gfx.FillColor(table.unpack(self.FONT_COLOR))
    gfx.Text(": ", 0, 0)

    local color, text
    if self.status == SelfTestStatusEnum.IDLE then
        color = self.FONT_COLOR
        text = ""
    elseif self.status == SelfTestStatusEnum.INPROGRESS then
        self._timer = self._timer + deltaTime
        local progress = math.ceil(Util.lerp(self._timer % 1, 0, 0, 1, 4))
        color = self.SELFTEST_COLOR_INPROGRESS
        text = string.rep(".", progress)
    elseif self.status == SelfTestStatusEnum.OK then
        color = self.SELFTEST_COLOR_OK
        text = "OK"
    elseif self.status == SelfTestStatusEnum.PASS then
        color = self.SELFTEST_COLOR_PASS
        text = "PASS"
    elseif self.status == SelfTestStatusEnum.ERROR then
        color = self.SELFTEST_COLOR_ERROR
        text = "ERROR"
    end

    gfx.TextAlign(gfx.TEXT_ALIGN_LEFT | gfx.TEXT_ALIGN_TOP)
    gfx.FillColor(table.unpack(color))
    gfx.Text(text, 0, 0)
end

return SelfTestField