#!/usr/bin/env bash
#
# Test gzip compression workflow:
# 1. Create archive from first state file
# 2. Compress with gzip
# 3. Append remaining state files to the compressed archive
# 4. Decompress and show info
#

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$(dirname "$SCRIPT_DIR")")"
BINARY="$PROJECT_DIR/target/debug/json-archive"
DATA_DIR="$SCRIPT_DIR/data"
OUT_DIR="$SCRIPT_DIR/out/gzip"

echo "=== Gzip Compression Test ==="

# Setup
rm -rf "$OUT_DIR"
mkdir -p "$OUT_DIR"

# Create initial archive from first state file
echo "Creating archive from state_1.json..."
"$BINARY" "$DATA_DIR/state_1.json" -o "$OUT_DIR/test.json.archive"

# Compress with gzip
echo "Compressing with gzip..."
gzip "$OUT_DIR/test.json.archive"
ls -la "$OUT_DIR/"

# Append remaining files to compressed archive
for i in $(seq 2 9); do
    echo "Appending state_$i.json to compressed archive..."
    "$BINARY" "$OUT_DIR/test.json.archive.gz" "$DATA_DIR/state_$i.json"
done

# Show info on the result
echo ""
echo "Final archive info:"
"$BINARY" info "$OUT_DIR/test.json.archive.gz"

# Decompress for manual inspection
echo ""
echo "Decompressing for comparison..."
gunzip -k "$OUT_DIR/test.json.archive.gz" 2>/dev/null || gunzip -c "$OUT_DIR/test.json.archive.gz" > "$OUT_DIR/test.json.archive"

echo ""
echo "Decompressed archive info:"
"$BINARY" info "$OUT_DIR/test.json.archive"

echo ""
echo "Files in $OUT_DIR:"
ls -la "$OUT_DIR/"