package io.gitlab.jfronny.muscript.compiler;

import java.io.IOException;
import java.util.Arrays;
import java.util.stream.Collectors;

public abstract class Decompilable {
    public final Order order;

    protected Decompilable(Order order) {
        this.order = order;
    }

    public abstract void decompile(ExprWriter writer) throws IOException;

    protected void parenthesize(Decompilable val, ExprWriter writer, boolean parenEqualOrder) throws IOException {
        boolean wrap = !parenEqualOrder ? val.order.ordinal() > this.order.ordinal() : val.order.ordinal() >= this.order.ordinal();
        if (wrap) writer.append('(');
        val.decompile(writer);
        if (wrap) writer.append(')');
    }

    /**
     * Creates quotes around a string, supports strings containing quotes
     */
    public static String enquote(String literalText) {
        if (!literalText.contains("'")) return "'" + literalText + "'";
        if (!literalText.contains("\"")) return "\"" + literalText + "\"";
        return Arrays.stream(literalText.split("'")).map(s -> "'" + s + "'")
                .collect(Collectors.joining(" || \"'\" || "));
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        try (ExprWriter ew = new ExprWriter(sb)) {
            decompile(ew);
        } catch (IOException e) {
            throw new RuntimeException("Could not decompile", e);
        }
        return sb.toString();
    }
}