var landmarks = [
    {
        "name": "Nauvoo",
        "distainst": 0,
        "type": "river",
        "active": true
    }, {
        "name": "Sugar Creek",
        "distainst": 7,
        "type": "river",
        "active": true
    }, {
        "name": "Richardson's Point",
        "distainst": 35,
        "type": "landmark",
        "active": true
    }, {
        "name": "Chariton River Crossing",
        "distainst": 80,
        "type": "river",
        "active": true
    }, {
        "name": "Locust Creek",
        "distainst": 103,
        "type": "river",
        "active": true
    }, {
        "name": "Garden Grove",
        "distainst": 128,
        "type": "settlement",
        "active": true
    }, {
        "name": "Mount Pisgah",
        "distainst": 153,
        "type": "settlement",
        "active": true
    }, {
        "name": "Nishnabotna River Crossing",
        "distainst": 232,
        "type": "river",
        "active": true
    }, {
        "name": "Grand Encampment", // Mormon Battalion Leaves
        "distainst": 255,
        "type": "camp",
        "active": true
    }, {
        "name": "Kanesville",
        "distainst": 265,
        "type": "settlement",
        "active": true
    }, {
        "name": "Winter Quarters",
        "distainst": 266,
        "type": "settlement",
        "active": true
    }, {
        "name": "Elkhorn River",
        "distainst": 293,
        "type": "river",
        "active": true
    }, {
        "name": "Platte River",
        "distainst": 305,
        "type": "river",
        "active": true
    }, {
        "name": "Loup Fork",
        "distainst": 352,
        "type": "river",
        "active": true
    }, {
        "name": "Fort Kearny",
        "distainst": 469,
        "type": "fort",
        "active": true
    }, {
        "name": "Confluence Point",
        "distainst": 563,
        "type": "landmark",
        "active": true
    }, {
        "name": "Ash Hollow",
        "distainst": 646,
        "type": "landmark",
        "active": true
    }, {
        "name": "Chimney Rock",
        "distainst": 718,
        "type": "landmark",
        "active": true
    }, {
        "name": "Scotts Bluff",
        "distainst": 738,
        "type": "landmark",
        "active": true
    }, {
        "name": "Fort Laramie",
        "distainst": 788,
        "type": "fort",
        "active": true
    }, {
        "name": "Upper Platte",
        "distainst": 914,
        "type": "river",
        "active": true
    }, {
        "name": "Red Butte",
        "distainst": 940,
        "type": "landmark",
        "active": true
    }, {
        "name": "Sweetwater River",
        "distainst": 964,
        "type": "river",
        "active": true
    }, {
        "name": "Independence Rock",
        "distainst": 965,
        "type": "landmark",
        "active": true
    }, {
        "name": "Devil's Gate",
        "distainst": 970,
        "type": "landmark",
        "active": true
    }, {
        "name": "Martin's Cove",
        "distainst": 993,
        "type": "landmark",
        "active": true
    }, {
        "name": "Rocky Ridge",
        "distainst": 1038,
        "type": "landmark",
        "active": true
    }, {
        "name": "Rock Creek",
        "distainst": 1048,
        "type": "river",
        "active": true
    }, {
        "name": "South Pass",
        "distainst": 1065,
        "type": "landmark",
        "active": true
    }, {
        "name": "Green River",
        "distainst": 1128,
        "type": "river",
        "active": true
    }, {
        "name": "Ft. Bridger",
        "distainst": 1183,
        "type": "fort",
        "active": true
    }, {
        "name": "Bear River",
        "distainst": 1216,
        "type": "river",
        "active": true
    }, {
        "name": "The Needles",
        "distainst": 1236,
        "type": "landmark",
        "active": true
    }, {
        "name": "Echo Canyon",
        "distainst": 1246,
        "type": "landmark",
        "active": true
    }, {
        "name": "Big Mountain",
        "distainst": 1279,
        "type": "landmark",
        "active": true
    }, {
        "name": "Golden Pass Road",
        "distainst": 1281,
        "type": "landmark",
        "active": true
    }, {
        "name": "Emigration Canyon",
        "distainst": 1283,
        "type": "landmark",
        "active": true
    }, {
        "name": "Salt Lake Valley",
        "distainst": 1297,
        "type": "seattlement",
        "active": true
    }
]
var train = {
    dis: 0,
    paused: false,
    stopped: false,
    river: false,
    delayed: false,
    resting: false,
    tavelingTo: 0
}
var date = {
    days: Math.floor(Math.random() * 90) + 60, // Days from January 1, 1846 (0 == January 1, 1846) (63553 == January 1, 2020)
    months: ["Maytember",
             "January",
             "Febuary",
             "March",
             "April",
             "May",
             "June",
             "July",
             "August",
             "September",
             "October",
             "November",
             "December"],
    weekdays: ["Sunday",
               "Monday",
               "Tuesday",
               "Wednesday",
               "Thursday",
               "Friday",
               "Saturday"],
    year: function (d) {
        var y = 2;
        while ((d >= 365 && (y) % 4 != 0) || d >= 366) {
            if (y++ % 4 == 0)
                d -= 366;
            else
                d -= 365;
        }
        y += 1844;
        return y;
    },
    dayOfYear: function (d) {
        var y = 2;
        while ((d >= 365 && (y) % 4 != 0) || d >= 366) {
            if (y++ % 4 == 0)
                d -= 366;
            else
                d -= 365;
        }
        return d;
    },
    month: function (day) {
        var m = 0;
        var d = this.dayOfYear(day) + 1;
        if (this.year(day) % 4 == 0) {
            if (d <= 31)
                m = 1;
            else if (d <= 60)
                m = 2;
            else if (d <= 91)
                m = 3;
            else if (d <= 121)
                m = 4;
            else if (d <= 152)
                m = 5;
            else if (d <= 182)
                m = 6;
            else if (d <= 213)
                m = 7;
            else if (d <= 244)
                m = 8;
            else if (d <= 274)
                m = 9;
            else if (d <= 305)
                m = 10;
            else if (d <= 335)
                m = 11;
            else if (d <= 366)
                m = 12;
        } else {
            if (d <= 31)
                m = 1;
            else if (d <= 59)
                m = 2;
            else if (d <= 90)
                m = 3;
            else if (d <= 120)
                m = 4;
            else if (d <= 151)
                m = 5;
            else if (d <= 181)
                m = 6;
            else if (d <= 212)
                m = 7;
            else if (d <= 243)
                m = 8;
            else if (d <= 273)
                m = 9;
            else if (d <= 304)
                m = 10;
            else if (d <= 334)
                m = 11;
            else if (d <= 365)
                m = 12;
        }
        return m;
    },
    dayOfMonth: function (day) {
        var d = (this.dayOfYear(day)) + 1;
        if (this.year(day) % 4 == 0) {
            if (d <= 31);
            else if (d <= 60)
                d -= 31;
            else if (d <= 91)
                d -= 60;
            else if (d <= 121)
                d -= 91;
            else if (d <= 152)
                d -= 121;
            else if (d <= 182)
                d -= 152;
            else if (d <= 213)
                d -= 182;
            else if (d <= 244)
                d -= 213;
            else if (d <= 274)
                d -= 244;
            else if (d <= 305)
                d -= 274;
            else if (d <= 335)
                d -= 305;
            else if (d <= 366)
                d -= 335;
        } else {
            if (d <= 31);
            else if (d <= 59)
                d -= 31;
            else if (d <= 90)
                d -= 59;
            else if (d <= 120)
                d -= 90;
            else if (d <= 151)
                d -= 120;
            else if (d <= 181)
                d -= 151;
            else if (d <= 212)
                d -= 181;
            else if (d <= 243)
                d -= 212;
            else if (d <= 273)
                d -= 243;
            else if (d <= 304)
                d -= 273;
            else if (d <= 334)
                d -= 304;
            else if (d <= 365)
                d -= 334;
        }
        return d;
    },
    dayOfWeek: function (day) {
        var y = this.year(day);
        var leap = 0;
        if (y % 4 == 0)
            leap = 1
        return ((2 + y + Math.floor(y / 4) - Math.floor(y / 100) + Math.floor(y / 400) - 2 - leap) + this.dayOfYear(day)) % 7;
    },
    printedDate: function (day) {
        return this.weekdays[this.dayOfWeek(day)] + ", " + this.months[this.month(day)] + " " + String(this.dayOfMonth(day)) + ", " + String(this.year(day));
    }
}
var weather = {
    seeds: [Math.random() / 1,
            Math.random() / 1,
            Math.random() / 1,
            Math.random() / 1,
            Math.random() / 1,
            Math.random() / 1],
    tempeture: function (day) {
        var month = date.month(day);
        var temp = [-10, 30, 40, 50, 60, 70, 80, 90, 80, 70, 60, 50, 40];
        //var add = 0;
        return ((Math.sin(day * this.seeds[0] + this.seeds[1]) * Math.cos(day * this.seeds[2] + this.seeds[3]) * -10) + (Math.sin(day * this.seeds[4] + this.seeds[5]) * 1)) + temp[month];
    },
    clouds: function (day) {
        return ((Math.sin(day * this.seeds[0] + this.seeds[1]) * Math.cos(day * this.seeds[2] + this.seeds[3])) + 1) / 2;
    },
    printWeather: function (day) {
        if (this.clouds(day) > 0.98)
            return "Hail";
        else if (this.clouds(day) > 0.95)
            if (this.tempeture(day) >= 40)
                return "Heavy Rain";
            else
                return "Blizzard";
        else if (this.clouds(day) > 0.85)
            if (this.tempeture(day) >= 40)
                return "Rain";
            else
                return "Snow";
        else if (this.clouds(day) > 0.75)
            return "Partly Cloudy";
        else if (this.clouds(day) > 0.50)
            return "Mostly Sunny";
        else
            return "Sunny";
    },
    printTempeture: function (day) {
        if (this.tempeture(day) > 100)
            return "Extreamly Hot";
        else if (this.tempeture(day) > 85)
            return "Hot";
        else if (this.tempeture(day) > 55)
            return "Warm";
        else if (this.tempeture(day) > 20)
            return "Cold";
        else
            return "Extreamly Cold";
    }
}
var funcs = {
    nextLandmarkIndex: function () {
        for (var i = 0; i < landmarks.length; i++) {
            if (landmarks[i].distainst > train.dis)
                return i;
        }
        if (landmarks[landmarks.length - 1].distainst < train.dis)
            return landmarks.length - 1;
        else
            return 0;
    },
    nextLandmark: function () {
        return landmarks[this.nextLandmarkIndex()];
    },
    pausedText: function () {
        if (train.paused) {
            return "Play";
        } else if (train.stopped || train.river) {
            return "Continue";
        } else {
            return "Pause";
        }
    }
}
var log = []

function print(str) {
    if (!log.includes(date.printedDate(date.days))) {
        log.push("");
        log.push(date.printedDate(date.days));
    }
    log.push(str);

}

function visitLandmark(index) {
    train.dis = landmarks[index].distainst;
    if (landmarks[index].type == "river")
        train.river = true;
    else
        train.stopped = true;

    print("Welcome to: " + landmarks[index].name);
    updateScreen();
}

function crossRiver(index) {
    document.getElementById("game").innerHTML = "<p>" + landmarks[index].name + " - River Crossing</p>";
    date.days++;
}

function updateScreen() {
    document.getElementById("date").innerHTML = "Date: " + date.printedDate(date.days);
    document.getElementById("weather").innerHTML = "Weather: " + weather.printWeather(date.days);
    //document.getElementById("tempature").innerHTML = "Tempature: " + String(weather.tempeture(date.days));
    document.getElementById("tempature").innerHTML = "Tempature: " + weather.printTempeture(date.days);
    document.getElementById("nextLandmark").innerHTML = "Next Landmark: " + funcs.nextLandmark().name;
    document.getElementById("disToLandmark").innerHTML = "To Landmark: " + String(Math.abs(train.dis - funcs.nextLandmark().distainst)) + " mi";
    document.getElementById("disTraveled").innerHTML = "Traveled: " + String(train.dis) + " mi";
    document.getElementById("percentage").innerHTML = String(Math.floor(train.dis / landmarks[landmarks.length - 1].distainst * 1000) / 10) + " %";
    document.getElementById("pause").innerHTML = funcs.pausedText();

    var logText = "";

    for (var i = 0; i < log.length; i++)
        logText = log[i] + "<br>" + logText;

    document.getElementById("log").innerHTML = logText;
}

updateScreen();
visitLandmark(train.tavelingTo++);

document.getElementById("pause").addEventListener("click", function () {
    if (train.stopped)
        train.stopped = false;
    else if (train.river) {
        //crossRiver(train.tavelingTo - 1);
        train.river = false;
    } else
        train.paused = !train.paused;
    updateScreen();
});
document.getElementById("map").addEventListener("click", function () {
    document.getElementById("game").innerHTML = ""
});
document.getElementById("status").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>status</p>"
});
document.getElementById("trade").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>WIP</p>"
});
document.getElementById("buy").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>WIP</p>"
});
document.getElementById("pace").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>WIP</p>"
});
document.getElementById("rations").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>WIP</p>"
});
document.getElementById("rest").addEventListener("click", function () {
    document.getElementById("game").innerHTML = "<p>WIP</p>"
});
document.getElementById("downloadLog").addEventListener("click", function () {
    var logText = "";
    for (var i = 0; i < log.length; i++)
        logText += log[i] + "\n";
    //console.log(logText);

    var filename = "log.txt";
    var file = new Blob([logText], {
        type: typeof (logText)
    });
    var a = document.createElement("a"),
        url = URL.createObjectURL(file);
    a.href = url;
    a.download = filename;
    document.body.appendChild(a);
    a.click();
    setTimeout(function () {
        document.body.removeChild(a);
        window.URL.revokeObjectURL(url);
    }, 0);

});

setInterval(function mainLoop() {
    if (!train.paused && !train.stopped && !train.river) {
        date.days++;
        if (date.dayOfWeek(date.days) != 0 && !train.delayed && !train.resting && weather.clouds(date.days) < 0.95)
            train.dis += Math.floor(Math.random() * 30);
        else if (weather.clouds(date.days) > 0.95)
            print("Severe Weather!");
    }
    if (landmarks[train.tavelingTo].distainst <= train.dis) {
        visitLandmark(train.tavelingTo++);
    }
    updateScreen();
}, 500);