summarizes text from stdin using openai chat completion api

summarize.sh

#!/bin/bash
# Title: summarize.sh
# Version: 0.1
# Date: 2024-06-02
# License: MIT

[ $OPENAI_API_KEY ] || { echo "OPENAI_API_KEY must be set" >&2; exit 1; }

: "${SYSMSG:="You summarize text to make it as short as possible"}"
: "${MODEL:="gpt-3.5-turbo"}"

query() {
    curl -s https://api.openai.com/v1/chat/completions \
        -H "Content-Type: application/json" \
        -H "Authorization: Bearer $OPENAI_API_KEY" \
        -d "$(jq -n --arg model "$MODEL" --argjson messages "$(cat)" '{$model,$messages}')"
}

parse() { jq -r '.choices[0].message.content'; }
toObj() { jq -n --arg role "$1" --arg content "$(cat)" '{$role,$content}'; }
toArray() { jq -s '.'; }

(
    toObj system <<< "$SYSMSG"
    toObj user
) | toArray | query | parse