#!/bin/bash

# Source common utilities
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/ai-common"

show_usage() {
    echo "Usage: ai-tr TRANSFORMATION [FILE...]"
    echo "Transform text format or style while preserving semantic meaning."
    echo ""
    echo "Arguments:"
    echo "  TRANSFORMATION   Description of the desired transformation"
    echo ""
    echo "Options:"
    echo "  -h              Show this help message"
}

TRANSFORMATION=""
FILES=()

while getopts "h" opt; do
    case $opt in
        h) handle_help show_usage ;;
        \?) handle_invalid_option "$OPTARG" ;;
    esac
done

shift $((OPTIND-1))

# Check dependencies
check_dependencies

require_argument "Transformation description" "$1" show_usage

TRANSFORMATION="$1"
shift
FILES=("$@")

# Validate files exist before processing
if [ ${#FILES[@]} -gt 0 ]; then
    validate_files "${FILES[@]}"
fi

# Get input with validation
if ! INPUT=$(get_input "${FILES[@]}"); then
    exit $EXIT_NO_MATCH
fi

PROMPT="You are a semantic text transformation tool. Apply the following transformation: $TRANSFORMATION

CRITICAL REQUIREMENTS:
1. Preserve ALL semantic meaning and factual content
2. Keep the same essential information - do not add, remove, or change facts
3. Only change style, tone, format, or wording as requested
4. Maintain the original structure (same number of distinct points/items)
5. Output ONLY the transformed text - no explanations or commentary

Transform each line/paragraph separately to maintain structure.

Text to transform:
$INPUT"

# Call Claude with error handling
RESULT=$(call_claude "$PROMPT")
EXIT_CODE=$?

if [ $EXIT_CODE -eq 0 ]; then
    echo "$RESULT"
    exit $EXIT_SUCCESS
else
    exit $EXIT_CODE
fi