/**
 * Parses a PB single .pb file
 * @param{string} rinput
 * @return{Object}
 */
export function parse(rinput) {
    let input = rinput.split("\n").map(v => v.trim()).filter(v => v.length > 0)
    let object = {}
    let object_key = ""
    let object_buffer = {}
    let object_value_buffer = ""
    let object_open = false

    for (let line of input) {
        if (line.endsWith("{")) {
            object_key = line.replaceAll("{", "").trim()
            object_buffer = {}
            object_value_buffer = ""
            object_open = true
        } else if (line.endsWith("}")) {
            object_open = false
            if (object[object_key] != null) {
                if (Array.isArray(object[object_key])) {
                    object[object_key].push(object_buffer)
                } else {
                    let old_obj = object[object_key]
                    object[object_key] = [old_obj, object_buffer]
                }
            } else {
                object[object_key] = object_buffer
            }
        } else {
            let { key, value } = parse_value(line)
            if (object_open === true) {
                object_buffer[key] = value
            } else {
                object[key] = value
            }
        }
    }

    return object
}

/**
 * Parses a single value
 * @param{string} input
 * @return{{key: string, value: string|number}}
 */
export function parse_value(input) {
    let [key, ...rvalues] = input.split(":")
    let value = rvalues.join("").trim()

    if (value.startsWith("\"") && value.endsWith("\"")) {
        return {
            key,
            value: value.slice(1, -1).replaceAll("\\", ""),
        }
    } else {
        return  {
            key,
            value: Number(value)
        }
    }
}