package net.knarcraft.ffmpegconverter.utility;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.ArrayList;
import java.util.List;

/**
 * A helper class for dealing with configuration value types
 */
public final class ConfigHelper {

    private ConfigHelper() {

    }

    /**
     * Gets the given value as a string list
     *
     * @param value <p>The raw string list value</p>
     * @return <p>The value as a string list, or null if not compatible</p>
     */
    public static @NotNull List<String> asStringList(@Nullable Object value) {
        if (value == null) {
            return new ArrayList<>();
        }
        if (value instanceof String string) {
            return List.of((string).split(","));
        } else if (value instanceof List<?> list) {
            List<String> strings = new ArrayList<>();
            for (Object object : list) {
                strings.add(String.valueOf(object));
            }
            return strings;
        } else {
            return new ArrayList<>();
        }
    }

    /**
     * Gets the given value as a boolean
     *
     * <p>This will throw an exception if used for a non-boolean value</p>
     *
     * @param value <p>The object value to get</p>
     * @return <p>The value of the given object as a boolean</p>
     * @throws ClassCastException <p>If the given value is not a boolean</p>
     */
    public static boolean asBoolean(@Nullable Object value) throws ClassCastException {
        if (value instanceof Boolean booleanValue) {
            return booleanValue;
        } else if (value instanceof String) {
            return Boolean.parseBoolean((String) value);
        } else {
            throw new ClassCastException();
        }
    }

}