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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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3 local Parsers = require "luan:Parsers.luan"
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4 local json_string = Parsers.json_string or error()
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5 local Io = require "luan:Io.luan"
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6 local uri = Io.uri or error()
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7 local Http = require "luan:http/Http.luan"
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8 local Config = require "site:/private/Config.luan"
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9 local key = Config.chatgpt.key or error()
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10 local Logging = require "luan:logging/Logging.luan"
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11 local logger = Logging.logger "tts.js"
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12
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13
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14 -- https://platform.openai.com/docs/guides/text-to-speech
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15
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16 local url = "https://api.openai.com/v1/audio/speech"
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17 local headers = {
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18 Authorization = "Bearer "..key
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19 ["Content-Type"] = "application/json"
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20 }
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21
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22 local function text_to_speech(voice,instructions,text)
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23 local options = {
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24 method = "POST"
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25 headers = headers
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26 content = json_string{
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27 model = "gpt-4o-mini-tts"
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28 voice = voice
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29 input = text
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30 instructions = instructions
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31 response_format = "wav"
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32 }
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33 }
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34 return uri(url,options)
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35 end
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36
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37 return function()
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38 local voice = Http.request.parameters.voice or error()
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39 local instructions = Http.request.parameters.instructions or error()
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40 local text = Http.request.parameters.text or error()
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41 local input = text_to_speech(voice,instructions,text)
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42 Http.response.write_chunked_binary(function(writer)
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43 writer.write_from(input)
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44 end)
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45 end
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