package net.knarcraft.permissionsigns.container;

import net.knarcraft.permissionsigns.formatting.TranslatableMessage;
import net.knarcraft.permissionsigns.formatting.Translator;
import net.knarcraft.permissionsigns.manager.EconomyManager;
import org.bukkit.ChatColor;
import org.bukkit.Location;

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

/**
 * This class represents a placed and active permission sign
 */
public class PermissionSign {

    private Location signLocation;
    private final String name;
    private final List<String> permissionNodes;
    private final int duration;
    private final double cost;

    /**
     * Instantiates a new permission sign
     *
     * @param signLocation    <p>The location of the permission sing in the world</p>
     * @param name            <p>The name to display on the permission sign</p>
     * @param permissionNodes <p>The permissions granted when this permission sign is used</p>
     * @param duration        <p>The duration, in seconds, until the permission should be revoked. 0 for non-temporary</p>
     * @param cost            <p>The cost of using this permission sign</p>
     */
    public PermissionSign(Location signLocation, String name, List<String> permissionNodes, int duration, double cost) {
        this.signLocation = signLocation;
        this.name = name;
        this.permissionNodes = new ArrayList<>(permissionNodes);

        //Automatically fix negative values
        this.duration = Math.max(0, duration);
        this.cost = Math.max(0, cost);
    }

    /**
     * Instantiates a new permission sign
     *
     * @param name            <p>The name to display on the permission sign</p>
     * @param permissionNodes <p>The permissions granted when this permission sign is used</p>
     * @param duration        <p>The duration, in seconds, until the permission should be revoked. 0 for non-temporary</p>
     * @param cost            <p>The cost of using this permission sign</p>
     */
    public PermissionSign(String name, List<String> permissionNodes, int duration, double cost) {
        this.name = name;
        this.permissionNodes = new ArrayList<>(permissionNodes);
        this.duration = Math.max(0, duration);
        this.cost = Math.max(0, cost);
    }

    /**
     * Sets the sign location of this permission sign
     *
     * @param signLocation <p>>The location of this permission sign's actual sign</p>
     */
    public void setSignLocation(Location signLocation) {
        if (this.signLocation == null) {
            this.signLocation = signLocation;
        } else {
            throw new IllegalArgumentException("A sign location cannot be overwritten");
        }
    }

    /**
     * Gets the location of this permission sign
     *
     * <p>The location might be null until a sign has been right-clicked</p>
     *
     * @return <p>The location of this permission sign</p>
     */
    public Location getSignLocation() {
        return signLocation;
    }

    /**
     * Gets the name of this permission sign
     *
     * @return <p>The name of this permission sign</p>
     */
    public String getName() {
        return name;
    }

    /**
     * Gets the permissions nodes granted by this permission sign
     *
     * @return <p>The permission nodes granted by this permission sign</p>
     */
    public List<String> getPermissionNodes() {
        return new ArrayList<>(this.permissionNodes);
    }

    /**
     * Gets the duration the permissions should last before expiring
     *
     * <p>A duration of 0 will give a permanent permission.</p>
     *
     * @return <p>The duration of the permissions</p>
     */
    public int getDuration() {
        return this.duration;
    }

    /**
     * Gets the cost of using this permissions sign
     *
     * @return <p>The cost of using this permission sign</p>
     */
    public double getCost() {
        return this.cost;
    }

    /**
     * Gets the lines used to represent this permission sign on a sign
     *
     * @return <p>The lines used to draw this permission sign</p>
     */
    public String[] getSignLines() {
        String[] lines = new String[4];
        lines[0] = ChatColor.translateAlternateColorCodes('&', Translator.getTranslatedMessage(
                TranslatableMessage.SIGN_PREFIX));
        lines[1] = getName();
        lines[2] = getDurationString();
        lines[3] = getCostString();
        return lines;
    }

    @Override
    public boolean equals(Object other) {
        if (!(other instanceof PermissionSign)) {
            return false;
        }
        if (this == other) {
            return true;
        }

        return this.signLocation.equals(((PermissionSign) other).signLocation);
    }

    /**
     * Gets the string used for displaying this sign's duration
     *
     * @return <p>The string used for displaying this sign's duration</p>
     */
    private String getDurationString() {
        if (duration == 0) {
            return Translator.getTranslatedMessage(TranslatableMessage.SIGN_PERMANENT);
        } else {
            return duration + " " + Translator.getTranslatedMessage(TranslatableMessage.SIGN_TIME_UNIT);
        }
    }

    /**
     * Gets the string used for displaying this sign's cost
     *
     * @return <p>The string used for displaying this sign's cost</p>
     */
    private String getCostString() {
        if (cost == 0) {
            return Translator.getTranslatedMessage(TranslatableMessage.SIGN_COST_FREE);
        } else {
            String currency = EconomyManager.getCurrency(cost != 1);
            return String.format("%.2f%s", cost, currency);
        }
    }

}