import { Server, contentLog, Vector } from "./../../library/Minecraft.js";
import config from "config.js";
import { getViewVector } from "server/util.js";
/**
 * This singleton holds utility and miscellaneous functions for players.
 */
class PlayerHandler {
    constructor() {
        Server.on("playerChangeDimension", ev => {
            // Teleport the inventory stasher with the player
            contentLog.debug(`"${ev.player.name}" has travelled to "${ev.dimension.id}"`);
            const stasherName = "wedit:stasher_for_" + ev.player.name;
            Server.runCommand(`tp @e[name="${stasherName}"] ~ 512 ~`, ev.player);
        });
    }
    /**
     * Tells you whether the player has an item.
     * @param player The player being tested
     * @param item The item being tested for
     * @return True if the player has the item; false otherwise
     */
    hasItem(player, item) {
        let hasItem = Server.player.getItemCount(player, item).length != 0;
        if (this.isHotbarStashed(player) && !hasItem) {
            let stasher;
            for (const entity of player.dimension.getEntities({ name: "wedit:stasher_for_" + player.name })) {
                stasher = entity;
            }
            if (stasher) {
                const inv_stash = stasher.getComponent("inventory").container;
                for (let i = 0; i < 9; i++) {
                    const stashed = inv_stash.getItem(i);
                    if (stashed && stashed.typeId == item) {
                        hasItem = true;
                        break;
                    }
                }
            }
        }
        return hasItem;
    }
    /**
     * @deprecated
     * Replaces an item stack in the player's inventory with another item.
     * @remark This does not check the player's armor slots nor offhand.
     * @param player The player being affected
     * @param item The item being replaced
     * @param sub The new item being replaced with
     */
    replaceItem(player, item, sub, locked = false) {
        const inv = player.getComponent("inventory").container;
        for (let i = 0; i < inv.size; i++) {
            if (inv.getItem(i)?.typeId === item) {
                const slotType = i > 8 ? "slot.inventory" : "slot.hotbar";
                const slotId = i > 8 ? i - 9 : i;
                let command = `replaceitem entity @s ${slotType} ${slotId} ${sub}`;
                if (locked) {
                    command += ` ${inv.getItem(i).amount} {"minecraft:item_lock":{"mode":"lock_in_slot"}}`;
                }
                Server.runCommand(command, player);
                break;
            }
        }
    }
    /**
     * Gives the player's location in the form of {@minecraft/server.Vector3}.
     * @param player The player being queried
     * @return The block location of the player
     */
    getBlockLocation(player) {
        return new Vector(Math.floor(player.location.x), Math.floor(player.location.y), Math.floor(player.location.z));
    }
    /**
     * Traces a block from the player's head in the direction they're looking,
     * @param player The player to trace for blocks from
     * @param range How far to trace for blocks
     * @param mask What kind of blocks the ray can hit
     * @return The location of the block the ray hits or reached its range at; null otherwise
     */
    traceForBlock(player, range, mask) {
        const start = player.getHeadLocation();
        const dir = getViewVector(player);
        const dim = player.dimension;
        let prevPoint = new Vector(Infinity, Infinity, Infinity);
        for (let i = 0; i < config.traceDistance; i += 0.2) {
            const point = new Vector(Math.floor(start.x + dir.x * i), Math.floor(start.y + dir.y * i), Math.floor(start.z + dir.z * i));
            if (prevPoint.equals(point))
                continue;
            prevPoint = point;
            const block = dim.getBlock(point);
            if (mask && mask.matchesBlock(block)) {
                return point;
            }
            else if (!mask && !block.isAir()) {
                return point;
            }
            else if (range && range > 0 && i >= range) {
                return point;
            }
        }
    }
    /**
     * Tells you whether the player's hotbar has been stashed in a temporary place.
     * @param player The player being queried
     * @return Whether the player's hotbar has been stashed
     */
    isHotbarStashed(player) {
        return Array.from(player.dimension.getEntities({
            name: `wedit:stasher_for_${player.name}`
        })).length != 0;
    }
    /**
     * Stashes the player's hotbar in a temporary entity.
     * @param player The player being affected
     * @return True if the player's hotbar has already been stashed; false otherwise
     */
    stashHotbar(player) {
        if (this.isHotbarStashed(player)) {
            return true;
        }
        const stasher = player.dimension.spawnEntity("wedit:inventory_stasher", new Vector(player.location.x, 512, player.location.z));
        stasher.nameTag = "wedit:stasher_for_" + player.name;
        const inv = player.getComponent("inventory").container;
        const inv_stash = stasher.getComponent("inventory").container;
        for (let i = 0; i < 9; i++) {
            inv.transferItem(i, i, inv_stash);
        }
        return false;
    }
    /**
     * Restores the player's hotbar from a temporary entity.
     * @param player The player being affected
     * @return True if the player's hotbar hasn't been stashed yet; false otherwise
     */
    restoreHotbar(player) {
        let stasher;
        const stasherName = "wedit:stasher_for_" + player.name;
        Server.runCommand(`tp @e[name="${stasherName}"] ~ 512 ~`, player);
        Server.runCommand(`tp @e[name="${stasherName}"] ~ 512 ~`, player);
        for (const entity of player.dimension.getEntities({ name: stasherName })) {
            stasher = entity;
        }
        if (stasher) {
            const inv = player.getComponent("inventory").container;
            const inv_stash = stasher.getComponent("inventory").container;
            for (let i = 0; i < 9; i++) {
                if (inv.getItem(i) && inv_stash.getItem(i)) {
                    inv.swapItems(i, i, inv_stash);
                }
                else if (inv.getItem(i)) {
                    inv.transferItem(i, i, inv_stash);
                }
                else {
                    inv_stash.transferItem(i, i, inv);
                }
            }
            Server.runCommand(`tp @e[name="${stasherName}"] ~ ~ ~`, player);
            stasher.triggerEvent("wedit:despawn");
            stasher.nameTag = "despawned";
            return false;
        }
        else {
            return true;
        }
    }
}
export const PlayerUtil = new PlayerHandler();
