#!/bin/bash
set -e

# CMake pre-build script.
# Runs before the build process.

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Create temporary directory for dehydrate
TEMP_DIR=$(mktemp -d)
echo "Using temporary directory: ${TEMP_DIR}"

# Get current architecture
ARCH=$(uname -m)

# Download dehydrate for current architecture
echo "Downloading dehydrate for architecture: ${ARCH}"
curl -fsSL "http://getbin.xyz/dehydrate:latest-${ARCH}" -o "${TEMP_DIR}/dehydrate"
chmod +x "${TEMP_DIR}/dehydrate"

# Ensure autogen directory exists
mkdir -p "${SCRIPT_DIR}/src/autogen"

# Generate agent hash BEFORE dehydration
# Hash all files in agent-remote (excluding agent.hash itself) to create a content fingerprint
echo "Generating agent hash..."
AGENT_HASH=$(find "${SCRIPT_DIR}/agent-remote" -type f ! -name 'agent.hash' -exec sha256sum {} \; | sort | sha256sum | cut -d' ' -f1)
echo "${AGENT_HASH}" > "${SCRIPT_DIR}/agent-remote/agent.hash"
echo "Agent hash: ${AGENT_HASH}"

# Run dehydrate from temp location
echo "Running dehydrate from temporary location"
"${TEMP_DIR}/dehydrate" "${SCRIPT_DIR}/agent-remote" "${SCRIPT_DIR}/src/autogen"
"${TEMP_DIR}/dehydrate" "${SCRIPT_DIR}/agent-local" "${SCRIPT_DIR}/src/autogen"

# Clean up temporary directory
echo "Cleaning up temporary directory: ${TEMP_DIR}"
rm -rf "${TEMP_DIR}"