whisper_for_me

init.lua

local hs = hs
local isRecording = false
local audioFilePath = os.getenv("HOME") .. "/Documents/transcription_audio.mp3"

function fileExists(filePath)
    local file = io.open(filePath, "r")
    if file then
        file:close()
        return true
    else
        return false
    end
end

function isProcessRunning(processName)
    local command = "pgrep " .. processName
    local output = hs.execute(command)
    return output ~= "" -- If output is not empty, process is running
end

function printInputDevices() 
    local printingCommand = "ffmpeg -f avfoundation -list_devices true -i ~/Desktop/nothing.mp3 > ~/Desktop/debugging_hammerspoon.txt 2>&1"
    local success, output, exitType, rc = hs.execute(printingCommand, true)
end

function startRecording()
    local recordingCommand = "ffmpeg -f avfoundation -i \":MacBook\" -acodec libmp3lame " .. audioFilePath .. " > /dev/null &"
    hs.console.printStyledtext("Recording command: " .. recordingCommand)
    
    -- Execute the command
    local success, output, exitType, rc = hs.execute(recordingCommand, true)
    
    -- Check the execution status
    if success then
        isRecording = true
        hs.alert.show("Recording Started")
    else
        hs.console.printStyledtext("Failed to start recording: " .. output)
        hs.alert.show("Failed to start recording")
    end
end

function stopRecordingAndTranscribe()
    isRecording = false

    if isProcessRunning("ffmpeg") then 
        hs.console.printStyledtext("ffmpeg is currently running")
    else 
        hs.console.printStyledtext("ffmpeg not running")
        hs.alert.show("FFmpeg not running")
        return
    end

    hs.console.printStyledtext("Stopping recording")
    hs.execute("killall ffmpeg", true)
    isRecording = false
    hs.alert.show("Recording Stopped")

    if not fileExists(audioFilePath) then
        hs.alert.show("Transcription failed.")
        return
    end

    local command = "curl https://api.openai.com/v1/audio/transcriptions -H \"Authorization: [YOUR API KEY HERE]\" -H \"Content-Type: multipart/form-data\" -F \"file=@" .. audioFilePath .. "\" -F model=\"whisper-1\" -F prompt=\"Hello. \""
    hs.console.printStyledtext(command)
    local output, status, type, rc = hs.execute(command)

    hs.console.printStyledtext("Output: " .. output)
    hs.console.printStyledtext("Status: " .. tostring(status))
    hs.console.printStyledtext("Type: " .. type)
    hs.console.printStyledtext("Return Code: " .. rc)
    
    if status then
        local response = hs.json.decode(output)
        if response and response.text then
            hs.pasteboard.setContents(response.text)
            hs.alert.show("Transcription Copied to Clipboard")
        else
            hs.alert.show("Failed to parse response")
        end
    else
        hs.alert.show("API request failed")
    end

    -- cleanup
    local cleanup_command = "rm " .. audioFilePath
    hs.console.printStyledtext(cleanup_command)
    hs.execute(cleanup_command)
end


hs.hotkey.bind({"alt"}, "R", function()
    hs.console.printStyledtext("Status: " .. tostring(isRecording))
    if not isRecording then
        startRecording()
    else
        stopRecordingAndTranscribe()
    end
end)