package net.knarcraft.paidsigns.command;

import net.knarcraft.paidsigns.utility.TabCompleteHelper;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

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

/**
 * The tab completer for the add paid sign condition command
 */
public class AddConditionTabCompleter extends TokenizedTabCompleter {

    private List<String> lineIndices;
    private List<String> stringsToMatch;
    private List<String> booleans;
    private List<String> optionStates;

    @Nullable
    @Override
    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias,
                                      @NotNull String[] args) {
        super.onTabComplete(sender, command, alias, args);
        if (lineIndices == null) {
            initializeValues();
        }
        if (argumentSize == 1) {
            return TabCompleteHelper.filterMatchingStartsWith(TabCompleteHelper.getPaidSignNames(), arguments.get(0));
        } else if (argumentSize == 2) {
            return TabCompleteHelper.filterMatchingStartsWith(this.lineIndices, arguments.get(1));
        } else if (argumentSize == 3) {
            return TabCompleteHelper.filterMatchingStartsWith(stringsToMatch, arguments.get(2));
        } else if (argumentSize == 4) {
            return TabCompleteHelper.filterMatchingStartsWith(booleans, arguments.get(3));
        } else if (argumentSize == 5) {
            return TabCompleteHelper.filterMatchingStartsWith(optionStates, arguments.get(4));
        } else if (argumentSize == 6) {
            return TabCompleteHelper.filterMatchingStartsWith(optionStates, arguments.get(5));
        }
        return new ArrayList<>();
    }

    /**
     * Initializes the values available for tab completion
     */
    private void initializeValues() {
        lineIndices = TabCompleteHelper.getSignLines();
        stringsToMatch = TabCompleteHelper.getExampleConditionStrings();
        booleans = TabCompleteHelper.getBooleans();
        optionStates = TabCompleteHelper.getOptionStates();
    }

}