#!/usr/bin/env bash
# Optional tee of deploy output to a log file under the project root.

# Args: project_root log_to_dir_relative [deploy_env]
# If deploy_env is set (test|pprod|prod), log file is deploy_<env>_YYYYMMDD_HHMMSS.log and starts with a header.
deploy_script_tee_log_if_requested() {
	local project_root="${1:?}"
	local log_to_dir="${2:-}"
	local deploy_env="${3:-}"
	if [[ -z "$log_to_dir" ]]; then
		return 0
	fi
	mkdir -p "${project_root}/${log_to_dir}"
	local log_file
	if [[ -n "$deploy_env" ]]; then
		log_file="${project_root}/${log_to_dir}/deploy_${deploy_env}_$(date +%Y%m%d_%H%M%S).log"
	else
		log_file="${project_root}/${log_to_dir}/deploy_$(date +%Y%m%d_%H%M%S).log"
	fi
	{
		printf '%s\n' "=== LeCoffre deploy log ==="
		printf '%s\n' "environment=${deploy_env:-<unset>} started_at=${DEPLOY_STARTED_AT:-} project_root=${project_root}"
	} >"$log_file"
	exec > >(tee -a "$log_file")
	info "[deploy] Teeing output to ${log_file}"
}