d3.select("body")
    .append("div")
    .attr("style", "width: 100%; min-height: 0px; flex-grow: 1")
    .append("svg")
    .attr("preserveAspectRatio", "xMinYMin meet")
    .classed("svg-content-responsive", true);
let graph = d3.select("svg");

console.log(graph);
let margin = {top: 20, right: 20, bottom: 35, left: 40};

function bbox() {
    return graph.node().parentNode.getBoundingClientRect();
}

function xAxis(g, x) {
    let _bbox = bbox();
    g.attr("transform", `translate(0,${_bbox.height - margin.bottom})`)
     .call(d3.axisBottom(x).ticks(_bbox.width / 80, ","))
     .call(g => g.select(".domain").remove())
     .call(g => g.select("text")
         .attr("x", _bbox.width)
         .attr("y", margin.bottom - 4)
         .attr("fill", "currentColor")
         .attr("text-anchor", "end")
         .text("Combat Level"));
}

function yAxis(g, y) {
    g.attr("transform", `translate(${margin.left},0)`)
    .call(d3.axisLeft(y))
    .call(g => g.select(".domain").remove())
    .call(g => g.select("text")
        .attr("x", -margin.left)
        .attr("y", 10)
        .attr("fill", "currentColor")
        .attr("text-anchor", "start")
        .text("Base DPS"));
}

function grid(g1, g2, x, y) {
    let _bbox = bbox();
    g1.attr("stroke", "currentColor")
      .attr("stroke-opacity", 0.1)
      .selectAll("line")
      .data(x.ticks())
      .join("line")
        .attr("x1", d => 0.5 + x(d))
        .attr("x2", d => 0.5 + x(d))
        .attr("y1", margin.top)
        .attr("y2", _bbox.height - margin.bottom)
      .exit(g => g.remove());
    g2.attr("stroke", "currentColor")
      .attr("stroke-opacity", 0.1)
      .selectAll("line")
      .data(y.ticks())
      .join("line")
        .attr("y1", d => 0.5 + y(d))
        .attr("y2", d => 0.5 + y(d))
        .attr("x1", margin.left)
        .attr("x2", _bbox.width - margin.right)
      .exit(g => g.remove());
}

let _xAxis = graph.append("g");
_xAxis.append("text");
let _yAxis = graph.append("g");
_yAxis.append("text");
let _grid1 = graph.append("g");
let _grid2 = graph.append("g");

let dps_getter_func = d => 1;
let prepowder = true;
let strDex = false;

let dps_data = {};
let current_data = null;
let current_type = "wand";
let baseline_x = [];
let baseline_y = [];

let baseUrl = getUrl.protocol + "//" + getUrl.host + "/";// + getUrl.pathname.split('/')[1];
(async function() {
    dps_data = await (await fetch(baseUrl + "/dps_data_compress.json")).json();

    dps_getter_func = d => d[4];
    current_data = dps_data.wand;
    baseline_x = dps_data.baseline_xs;
    baseline_y = dps_data.baseline_ys;

    d3.select(window)
        .on("resize", function() {
            redraw(current_data);
      });
    redraw(current_data);
}) ();

let colorMap = new Map(
    [
        ["Normal", "#fff"],
        ["Unique", "#ff5"],
        ["Rare","#f5f"],
        ["Legendary","#5ff"],
        ["Fabled","#f55"],
        ["Mythic","#a0a"],
        ["Crafted","#0aa"],
        ["Custom","#0aa"],
        ["Set","#5f5"]
    ]
);
let tiers_mod = new Map(
    [
        ["Normal", 0.8],
        ["Unique", 1.0],
        ["Rare", 1.1],
        ["Legendary", 1.3],
        ["Fabled", 1.5],
        ["Mythic", 1.7],
        ["Set", 1.05]
    ]
);
let weapon_type_mods = new Map(
    [
        ["wand", 0.6],
        ["spear", 0.8],
        ["dagger", 1.0],
        ["bow", 1.2],
        ["relik", 1.2]
    ]
);
let tier_baselines = new Map()
for (let tier of tiers_mod.keys()) {
    let line_top = graph.append("path");
    let line_bot = graph.append("path");
    tier_baselines.set(tier, [line_top, line_bot]);
}

let circles = graph.append("g");

let details = graph.append("g")
        .attr("fill", "#444");
details.append("rect").attr("z", "100");

function showDetails(data, i, xfunc, yfunc) {
    let _bbox = bbox();
    let xpos = xfunc(i[1])
    let ypos = yfunc(dps_getter_func(i));
    let texts = [[1, i[0]],
                [3, "Prepowder: "+i[4].toFixed(2)],
                [4, "Postpowder: "+i[5].toFixed(2)],
                [6, "Design Modifier: "+i[7].toFixed(2)],
                [7, "Explained D. Mod: "+i[6].toFixed(2)]];
    let idx = 8;
    console.log(i);
    for (const explanation of i[8]) {
        texts.push([idx, explanation[0] + ": " + explanation[1]]);
        idx += 1;
    }
    let box_height = (14 * idx) - 4;
    if (ypos + box_height > _bbox.height) ypos = _bbox.height - box_height;
    details.select("rect")
           .attr("x", xpos)
           .attr("y", ypos)
           .attr("width", 200)
           .attr("height", box_height)
           .attr("opacity", 0.8);
    details.selectAll("text")
           .data(texts, d => d[0])
           .join("text")
           .style("font-size", "12px")
           .attr("x", xpos+5)
           .attr("y", d => d[0]*14 + ypos)
           .attr("text-anchor", "start")
           .attr("fill", "#fff")
           .attr("opacity", 1)
           .text(d => d[1]);
}
function hideDetails() {
    details.select("rect")
           .attr("x", 0)
           .attr("y", 0)
           .attr("width", 0)
           .attr("height", 0)
           .attr("opacity", 0);
    details.selectAll("text")
           .data([])
           .join("text");
}

function redraw(data) {
    hideDetails();
    let max_dps_base = 0;
    let tmp = dps_getter_func;
    let tmp2 = prepowder;
    prepowder = false;
    setGetterFunc();
    for (let x of data) {
        if (dps_getter_func(x) > max_dps_base) {
            max_dps_base = dps_getter_func(x);
        }
    }
    dps_getter_func = tmp;
    prepowder = tmp2;
    let _bbox = bbox();
    let x = d3.scaleLinear([70, 110], [margin.left, bbox().width - margin.right]);
    let y = d3.scaleLinear([0, max_dps_base * 1.1], [bbox().height - margin.bottom, margin.top]);

    let type_mod = weapon_type_mods.get(current_type);
    for (let tier of tiers_mod.keys()) {
        let res = tier_baselines.get(tier);
        let line_top = res[0];
        let line_bot = res[1];
        let tier_mod = tiers_mod.get(tier);
        let y_max = baseline_y.map(x => 2.1*x*tier_mod*type_mod);
        let y_min = baseline_y.map(x => 2.0*x*tier_mod*type_mod);
        line_top.datum(zip(baseline_x, y_max))
            .attr("fill", "none")
            .attr("stroke", d => colorMap.get(tier))
            .attr("d", d3.line()
                .x(function(d) { return x(d[0]) })
                .y(function(d) { return y(d[1]) })
              )
        line_bot.datum(zip(baseline_x, y_min))
            .attr("fill", "none")
            .attr("stroke", d => colorMap.get(tier))
            .attr("d", d3.line()
                .x(function(d) { return x(d[0]) })
                .y(function(d) { return y(d[1]) })
              )
    }
    graph.attr("viewBox", [0, 0, _bbox.width, _bbox.height]);
    xAxis(_xAxis, x);
    yAxis(_yAxis, y);
    grid(_grid1, _grid2, x, y);
    circles.selectAll('circle')
        .data(data, d => d[0])
        .join(
            function(enter) {
                return enter.append("circle")
                      .attr("fill", d => colorMap.get(d[3]))
                      .attr("cx", d => x(d[1]))
                      .attr("cy", d => y(dps_getter_func(d)))
                      .attr("r", d => 5)
                      .on("click", (d, i) => showDetails(d, i, x, y))
                      .on("mouseover", function() { d3.select(this).raise(); })
                      .call(circle => circle.append("title")
                        .text(d => [d[0], "DPS: "+dps_getter_func(d)].join("\n")));
            },
            update => update.attr("cx", d => x(d[1]))
                          .attr("cy", d => y(dps_getter_func(d)))
                          .on("click", (d, i) => showDetails(d, i, x, y))
                          .select("title")
                          .text(d => [d[0], "DPS: "+dps_getter_func(d)].join("\n")),
            exit => exit.remove()
        );
}

function setData(type) {
    current_type = type;
    d3.select("#info").text("SELECTED ITEM TYPE: " + type);
    current_data = dps_data[type];
    redraw(current_data);
}

function setGetterFunc() {
    if (prepowder && (!strDex)) dps_getter_func = d => d[4];
    else if ((!prepowder) && (!strDex)) dps_getter_func = d => d[5];
    else if (prepowder && strDex) dps_getter_func = d => d[6];
    else dps_getter_func = d => d[7];

}

function togglePowder() {
    prepowder = !prepowder;
    d3.select("#powderToggle").text("prepowder ("+prepowder+")");
    setGetterFunc();
    redraw(current_data);
}