const { Movements } = require('mineflayer-pathfinder')
const v = require('vec3')

let cfg = {}
let bot = {}
// let moving
let pathfinder
let mcData
let movements = []


function initMoves(bot = bot, mcData = bot.mcData) {
    console.info(movements)
    if (movements.length > 0) {
        bot.pathfinder.setMovements(movements.defaultMove)
        return console.warn("movements already initialized!")
    }
    let defaultMove = new Movements(bot, mcData)
    defaultMove.canDig = false
    defaultMove.scafoldingBlocks.push(mcData.blocksByName.slime_block.id)
    defaultMove.blocksCantBreak.add(mcData.blocksByName.glass.id)
    defaultMove.blocksToAvoid.add(mcData.blocksByName.magma_block.id)
    movements.push(defaultMove)
    movements.defaultMove = movements[0]

    bot.pathfinder.setMovements(defaultMove)
}


function moveNear(pos, distance = 3) {
    const { GoalNear } = require('mineflayer-pathfinder').goals
    cfg.quiet || bot.chat(`moving to ${pos}`)

    pos = v(pos)
    bot.pathfinder.setMovements(movements.defaultMove)
    bot.pathfinder.setGoal(new GoalNear(pos.x, pos.y, pos.z, distance))
}

function moveXZ(pos) {
    const { GoalXZ } = require('mineflayer-pathfinder').goals
    cfg.quiet || bot.chat(`moving to ${pos}`)

    if (Array.isArray(pos) && pos.length == 2) {
        pos = v(pos[0], 0, pos[1])
    }
    pos = v(pos)
    console.log(pos)
    bot.pathfinder.setMovements(movements.defaultMove)
    bot.pathfinder.setGoal(new GoalXZ(pos.x, pos.z))
}

function follow(entity, dynamic = true, distance = 3) {
    console.assert(entity)
    const { GoalFollow } = require('mineflayer-pathfinder').goals

    cfg.quiet && console.log(entity)
        || bot.chat(
            `following ${entity.type
            }: ${entity.username || entity.displayName
            }${dynamic ? "" : " once"}`
        )

    entity = entity.entity ? entity.entity : entity

    // console.log(entity)

    bot.pathfinder.setMovements(movements.defaultMove)
    bot.pathfinder.setGoal(new GoalFollow(entity, distance), dynamic)
}

function hit(blockOrEntity) {
    bot.chat(`hitting ${entity.name || entity.type}`)
}

function goalReached(goal) {
    console.log(goal)
    const entity = goal?.entity
    let entityInfo = ""
    if (entity) {
        entityInfo += entity.type + ": "
        switch (entity.type) {
            case "player":
                entityInfo += entity.username
                break;
            default:
                break;
        }
    }
    cfg.quiet || bot.chat(`goal reached: ${entityInfo}; pos: [x:${goal?.x}, y:${goal?.y}, z:${goal?.z}]`)
}

function stop() {
    bot.pathfinder.setGoal(null)
    bot.stopDigging()
}

const load = (config) => {
    cfg = config
    bot = cfg.bot
    cfg.move = {
        // auto: true,
        canDig: false,
        // list: ["hello", "wassup"],
        quiet: !!cfg.quiet,
        movements: []
    }

    mcData = bot.mcData || (bot.mcData = require('minecraft-data')(bot.version))
    pathfinder = bot.pathfinder || bot.loadPlugin(require('mineflayer-pathfinder').pathfinder)

    // initMoves(bot, mcData)
    setTimeout(initMoves, 500, bot, mcData)
    bot.on('goal_reached', goalReached)

}

const unload = () => {
    stop()
    bot.off('goal_reached', goalReached)
}

module.exports = { load, unload, stop, initMoves, moveNear, moveXZ, follow }