#!/usr/bin/env bash

# exit if any command fails
set -e

usage() {
  echo "Usage: $(basename $0) <conversation_id> <parent_id> <text>"
}

if [ ! $# -eq 3 ]; then
  usage
  exit 1
fi

if [ -z $OPENAI_TOKEN ]; then
  echo "OPENAI_TOKEN must be set with OpenAI authorization bearer token (without Bearer prefix)"
  exit 1
fi

if [ -z "$OPENAI_COOKIE" ]; then
  echo "OPENAI_COOKIE must be set with OpenAI cookies"
  exit 1
fi

CONVERSATION_ID=$1
PARENT_ID=$2
TEXT="$3"

# apparently, UUIDs are generated by the client :thinking:
# or this is not really necessary, but I'll do it anyway since that's what the web version does.
MID=$(python -c 'import uuid;print(uuid.uuid4())')

BODY="{
  \"action\": \"next\",
  \"messages\": [
      {
          \"id\": \"$MID\",
          \"author\": {
              \"role\": \"user\"
          },
          \"content\": {
              \"content_type\": \"text\",
              \"parts\": [
                  \"$TEXT\"
              ]
          },
          \"metadata\": {}
      }
  ],
  \"conversation_id\": \"$CONVERSATION_ID\",
  \"parent_message_id\": \"$PARENT_ID\",
  \"model\": \"text-davinci-002-render-sha\",
  \"timezone_offset_min\": -120,
  \"suggestions\": [],
  \"history_and_training_disabled\": false,
  \"arkose_token\": null
}"

curl 'https://chat.openai.com/backend-api/conversation' \
  -H 'authority: chat.openai.com' \
  -H 'accept: text/event-stream' \
  -H 'accept-language: en-US' \
  -H "authorization: Bearer $OPENAI_TOKEN" \
  -H 'content-type: application/json' \
  -H "cookie: $OPENAI_COOKIE" \
  -H 'origin: https://chat.openai.com' \
  -H 'referer: https://chat.openai.com/c/3ad5849d-5a51-4b8e-8974-669c965a3896' \
  -H 'sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Brave";v="116"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "Linux"' \
  -H 'sec-fetch-dest: empty' \
  -H 'sec-fetch-mode: cors' \
  -H 'sec-fetch-site: same-origin' \
  -H 'sec-gpc: 1' \
  -H 'user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36' \
  --data-raw "$BODY" \
  --compressed