#!/bin/bash
set -e

EXECUTE_BINARY="%{EXECUTE_PATH}"
JQ="%{JQ_PATH}"

if [[ ! -x "$EXECUTE_BINARY" ]]; then
    EXECUTE_BASENAME=$(basename "$EXECUTE_BINARY")
    if [[ ! -x "$EXECUTE_BASENAME" ]]; then
        echo "Error: Execute binary not found or not executable at $EXECUTE_BINARY and $EXECUTE_BASENAME" >&2
        exit 1
    else
        EXECUTE_BINARY=./$EXECUTE_BASENAME
    fi
fi

# Ensure the binaries exist and are executable
if [[ ! -x "$JQ" ]]; then
    JQ_PATH="../databuild+/runtime/$(basename $JQ)"
    if [[ ! -x "$JQ_PATH" ]]; then
        echo "Error: JQ binary not found or not executable at $JQ or $JQ_PATH" >&2
        exit 1
    else
        JQ=$JQ_PATH
    fi
fi

# First argument should be the path to a config file
CONFIG_FILE="$1"

# Create a temporary file for stdin if needed
if [[ -z "$CONFIG_FILE" ]] || [[ "$CONFIG_FILE" == "-" ]]; then
    TMP_CONFIG=$(mktemp)
    cat > "$TMP_CONFIG"
    CONFIG_FILE="$TMP_CONFIG"
    trap 'rm -f "$TMP_CONFIG"' EXIT
fi

# Extract and set environment variables from the config
eval "$("$JQ" -r '.env | to_entries | .[] | "export " + .key + "=\"" + .value + "\""' "$CONFIG_FILE")"

# Extract arguments from the config
ARGS=()
while IFS= read -r arg; do
    ARGS+=("$arg")
done < <("$JQ" -r '.args[]' "$CONFIG_FILE")

# Run the execution with both environment variables (already set) and arguments
exec "$EXECUTE_BINARY" "${ARGS[@]}"