#!/usr/bin/env bash

template-dotenv() {
    local template=".env.template"
    local output=".env"

    if [[ ! -f "$template" ]]; then
        echo "Template file '$template' not found."
        return 1
    fi

    echo "Append to .env from $template."
    while IFS= read -r line || [[ -n "$line" ]]; do
        if [[ "$line" =~ \$\(.+\) ]]; then
            eval "echo $line" >> "$output"
        else
            echo "$line" >> "$output"
        fi
    done < "$template"
}