let game = new Vue({
    el: '#root',
    data: {
        money: 0,
        resources: {
            wood: 50,
            stone: 0,
            iron: 0,
            bricks: 0,
            corn: 0
        },
        buildings: [
            {
                name: 'Bank',
                resource: 'gold',
                icon: 'medieval_largeCastle',
                level: 1,
                maxLevel: 20,
                isOwned: true,
                isUpgradeable: true,
                amount: 100,
                amountMultiplicator: 1.5,
                intervalInSeconds: 30,
                intervalMultiplicator: 1,
                price: 1000,
                priceMultiplicator: 10,
            },
            {
                name: 'Lumberjack',
                resource: 'wood',
                icon: 'medieval_lumber',
                level: 0,
                maxLevel: 15,
                isOwned: false,
                isUpgradeable: true,
                amount: 2,
                amountMultiplicator: 1,
                intervalInSeconds: 10,
                intervalMultiplicator: 0.95,
                price: 100,
                priceMultiplicator: 2
            },
            {
                name: 'Quarry',
                resource: 'stone',
                icon: 'medieval_mine',
                level: 0,
                maxLevel: 15,
                isOwned: false,
                isUpgradeable: true,
                amount: 2,
                amountMultiplicator: 1,
                intervalInSeconds: 20,
                intervalMultiplicator: 0.95,
                price: 250,
                priceMultiplicator: 2
            },
            {
                name: 'Farm',
                resource: 'corn',
                icon: 'medieval_farm',
                level: 0,
                maxLevel: 25,
                isOwned: false,
                isUpgradeable: true,
                amount: 5,
                amountMultiplicator: 2,
                price: 500,
                priceMultiplicator: 2,
                intervalInSeconds: 60,
                intervalMultiplicator: 1
            },
        ],
        currentQuest: null,
        loadedIntervals: []
    },
    created() {
        this.money = this.getSavedMoney();
        this.saveMoney();
        this.loadResources();

        this.loadBuildings();
        this.reloadBuildings();
    },
    methods: {
        saveMoney() {
            localStorage.setItem('money', String(this.money));
            return this.getSavedMoney();
        },

        getSavedMoney() {
            this.money = Number(localStorage.getItem('money') ?? 0);
            return this.money;
        },

        add(amount = 0, resource = 'gold') {
            switch (resource) {
                case 'wood':
                    this.resources.wood += amount;
                    break;
                case 'stone':
                    this.resources.stone += amount;
                    break;
                case 'corn':
                    this.resources.corn += amount;
                    break;
                case 'gold':
                    this.money += amount;
                    break;
            }

            this.saveResources();
            return this.saveMoney();
        },

        sub(amount = 0, resource = false) {
            this.money -= amount;
            return this.saveMoney();
        },

        getAmount() {
            return this.money.toFixed(0);
        },

        getAmountFormatted() {
            return Intl.NumberFormat('de-DE', {style: 'currency', currency: 'EUR'}).format(this.money);
        },

        reloadBuildings() {
            this.killIntervals();

            let game = this;
            this.buildings.forEach((building) => {
                if (building.isOwned) {
                    game.initiateIntervals(building);
                }
            });
        },

        initiateIntervals(building) {
            building.intervalEarnID = setInterval(() => {
                game.add(building.amount, building.resource);
            }, building.intervalInSeconds * 1000);

            building.intervalLoadingID = setInterval(() => {
                if (building.loader < 100) {
                    building.loader += 10;
                } else {
                    building.loader = 10;
                }

                game.$forceUpdate()
            }, building.intervalInSeconds / 10 * 1000)


            this.loadedIntervals.push(building.intervalEarnID, building.intervalLoadingID);
        },

        killIntervals() {
            this.buildings.forEach((building) => {
                building.loader = 0;
            });

            this.loadedIntervals.forEach((interval) => {
                clearInterval(interval)
            });
        },

        buyBuilding(building) {
            if (this.money >= building.price) {
                this.sub(building.price);
                building.isOwned = true;

                this.upgradeBuilding(building, true);
                this.saveBuildings();
            } else {
                alert('Not enough money');
            }
        },

        buyUpgrade(building) {
            if (building.level === 'MAX') {
                alert('Already at MAX-Level');
                return false;
            }

            if (this.money >= building.price) {
                this.sub(building.price);
                this.upgradeBuilding(building);
            } else {
                alert('Not enough money');
            }
        },

        upgradeBuilding(building, first = false) {
            // this.killIntervals();

            if (building.level < (building.maxLevel - 1)) {
                building.level++;
            } else {
                building.level = 'MAX';
                building.isUpgradeable = false;
            }

            building.price = Number(building.price * building.priceMultiplicator).toFixed(2);

            if (first === false) {
                building.intervalInSeconds = Number(building.intervalInSeconds * building.intervalMultiplicator).toFixed(2);
            }

            // this.reloadBuildings();
            this.reloadSingleBuilding(building);
            this.saveBuildings();
        },

        reloadSingleBuilding(building) {
            clearInterval(building.intervalEarnID);
            clearInterval(building.intervalLoadingID);
            building.loader = 10;

            this.initiateIntervals(building);
        },

        saveBuildings() {
            localStorage.setItem('buildings', JSON.stringify(this.buildings));
        },

        loadBuildings: function () {
            let savedBuildings = JSON.parse(localStorage.getItem('buildings'));

            if (savedBuildings) {
                this.buildings = savedBuildings;
            }
        },

        saveResources() {
            localStorage.setItem('resources', JSON.stringify(this.resources));
        },

        loadResources: function () {
            let savedResources = JSON.parse(localStorage.getItem('resources'));

            if (savedResources) {
                this.resources = savedResources;
            }
        },

        generateQuest() {
            let possibleAmountsForQuest = [
                0, 5, 10, 15, 20, 25, 30, 35
            ];
            
            let randomWood = 0;
            let randomStone = 0;
            let randomIron = 0;
            let randomBricks = 0;
            let randomCorn = 0;
            let rewardSum = 0;


            if (this.resources.wood > 0) {
                randomWood = this.getRandomElement(possibleAmountsForQuest);
                rewardSum += (randomWood * 5);
            }

            if (this.resources.stone > 0) {
                randomStone = this.getRandomElement(possibleAmountsForQuest);
                rewardSum += (randomStone * 7);
            }

            if (this.resources.iron > 0) {
                randomIron = this.getRandomElement(possibleAmountsForQuest);
                rewardSum += (randomIron * 15);
            }

            if (this.resources.bricks > 0) {
                randomBricks = this.getRandomElement(possibleAmountsForQuest);
                rewardSum += (randomBricks * 25);
            }

            if (this.resources.corn > 0) {
                randomCorn = this.getRandomElement(possibleAmountsForQuest);
                rewardSum += (randomCorn * 30);
            }

            if (rewardSum > 0) {
                this.currentQuest = {
                    wood: randomWood,
                    stone: randomStone,
                    iron: randomIron,
                    bricks: randomBricks,
                    corn: randomCorn,
                    reward: rewardSum
                };
            } else {
                this.currentQuest = null;
            }

            return this.currentQuest;
        },

        getRandomElement(possibleValues) {
            return possibleValues[Math.floor(Math.random() * possibleValues.length)];
        },

        isQuestRedeemable() {
            return (
                this.resources.wood >= this.currentQuest.wood &&
                this.resources.stone >= this.currentQuest.stone &&
                this.resources.iron >= this.currentQuest.iron &&
                this.resources.bricks >= this.currentQuest.bricks &&
                this.resources.corn >= this.currentQuest.corn
            );
        },

        redeemReward() {
            if (this.isQuestRedeemable()) {
                this.money += this.currentQuest.reward;
                this.resources.wood -= this.currentQuest.wood;
                this.resources.stone -= this.currentQuest.stone;
                this.resources.iron -= this.currentQuest.iron;
                this.resources.bricks -= this.currentQuest.bricks;
                this.resources.corn -= this.currentQuest.corn;
                
                this.generateQuest();
            } else {
                return false;
            }
        }
    },
});