local dfpwm = require("cc.audio.dfpwm")
local Direction = require("lib.direction")

---@alias AudioControllerConfig {buffer_length_seconds: number}

---@class AudioController
---@field config AudioControllerConfig
---@field play boolean
local AudioController = {}
AudioController.__index = AudioController


---@return AudioController
function AudioController:Create()
    local t = {}
    setmetatable(t, AudioController)


    -----------------------------------------------------------------------------------------------
    -- Fields
    -----------------------------------------------------------------------------------------------
    t.config = {
        buffer_length_seconds = 1
    }
    t.play = false


    return t
end


-----------------------------------------------------------------------------------------------
-- Audio Methods
-----------------------------------------------------------------------------------------------


function AudioController:PlayAudio(filename)
    self.play = true

    local decoder = dfpwm.make_decoder()
    while self.play do
        for chunk in io.lines(("audio/%s.dfpwm"):format(filename), self.config.buffer_length_seconds * 1024) do
            if not self.play then
                break
            end

            local buffer = decoder(chunk)

            while not self:GetSpeaker().playAudio(buffer) do
                ---@diagnostic disable-next-line: undefined-field
                os.pullEvent("speaker_audio_empty")
            end
        end
    end
end


function AudioController:PlayAudioFactory(filename)
    local function play()
        self:PlayAudio(filename)
    end

    return play
end


-----------------------------------------------------------------------------------------------
-- Management Methods
-----------------------------------------------------------------------------------------------


---@return table | nil
function AudioController:GetSpeaker()
    return peripheral.find("speaker")
end


function AudioController:StopPlaying()
    self.play = false
    self:GetSpeaker().stop()
end


-----------------------------------------------------------------------------------------------
-- Main Method
-----------------------------------------------------------------------------------------------


function AudioController:Run()
    -- self:Configure()

    self:PlayAudio("bangarang")
end


return AudioController