"use strict";

const api = require("./api");
const utils = require("./utils");
const cookie = require("./cookie")("bbctrl-");

module.exports = {
    template: "#control-view-template",
    props: [ "config", "template", "state" ],

    data: function() {
        return {
            current_time: "",
            mach_units: this.$root.state.metric ? "METRIC" : "IMPERIAL",
            mdi: "",
            last_file: undefined,
            last_file_time: undefined,
            toolpath: {},
            toolpath_progress: 0,
            axes: "xyzabc",
            history: [],
            speed_override: 1,
            feed_override: 1,
            jog_incr_amounts: {
                "METRIC": {
                    fine: 0.1,
                    small: 1.0,
                    medium: 10,
                    large: 100,
                },
                "IMPERIAL": {
                    fine: 0.005,
                    small: 0.05,
                    medium: 0.5,
                    large: 5,
                }
            },
            jog_incr: localStorage.getItem("jog_incr") || "small",
            jog_step: cookie.get_bool("jog-step"),
            jog_adjust: parseInt(cookie.get("jog-adjust", 2)),
            deleteGCode: false,
            tab: "auto",
            ask_home: true,
            showGcodeMessage: false
        };
    },

    components: {
        "axis-control": require("./axis-control"),
        "path-viewer": require("./path-viewer"),
        "gcode-viewer": require("./gcode-viewer")
    },

    watch: {
        jog_incr: function(value) {
            localStorage.setItem("jog_incr", value);
        },

        "state.metric": {
            handler: function(metric) {
                this.mach_units = metric
                    ? "METRIC"
                    : "IMPERIAL";
            },
            immediate: true
        },

        "state.line": function() {
            if (this.mach_state != "HOMING") {
                this.$broadcast("gcode-line", this.state.line);
            }
        },

        "state.selected_time": function() {
            this.load();
        },

        jog_step: function() {
            cookie.set_bool("jog-step", this.jog_step);
        },

        jog_adjust: function() {
            cookie.set("jog-adjust", this.jog_adjust);
        }
    },

    computed: {
        display_units: {
            cache: false,
            get: function() {
                return this.$root.display_units;
            },
            set: function(value) {
                this.config.settings.units = value;
                this.$root.display_units = value;
                this.$dispatch("config-changed");
            }
        },

        metric: function() {
            return this.display_units === "METRIC";
        },

        mach_state: function() {
            const cycle = this.state.cycle;
            const state = this.state.xx;

            if (state != "ESTOPPED" && (cycle == "jogging" || cycle == "homing")) {
                return cycle.toUpperCase();
            }

            return state || "";
        },

        pause_reason: function() {
            return this.state.pr;
        },

        is_running: function() {
            return this.mach_state == "RUNNING" || this.mach_state == "HOMING";
        },

        is_stopping: function() {
            return this.mach_state == "STOPPING";
        },

        is_holding: function() {
            return this.mach_state == "HOLDING";
        },

        is_ready: function() {
            return this.mach_state == "READY";
        },

        is_idle: function() {
            return this.state.cycle == "idle";
        },

        is_paused: function() {
            return this.is_holding && (this.pause_reason == "User pause" || this.pause_reason == "Program pause");
        },

        can_mdi: function() {
            return this.is_idle || this.state.cycle == "mdi";
        },

        can_set_axis: function() {
            return this.is_idle;

            // TODO allow setting axis position during pause
            // return this.is_idle || this.is_paused;
        },

        message: function() {
            if (this.mach_state == "ESTOPPED") {
                return this.state.er;
            }

            if (this.mach_state == "HOLDING") {
                return this.state.pr;
            }

            if (this.state.messages.length) {
                return this.state.messages.slice(-1)[0].text;
            }

            return "";
        },

        highlight_state: function() {
            return this.mach_state == "ESTOPPED" || this.mach_state == "HOLDING";
        },

        plan_time: function() {
            return this.state.plan_time;
        },

        plan_time_remaining: function() {
            if (!(this.is_stopping || this.is_running || this.is_holding)) {
                return 0;
            }

            return this.toolpath.time - this.plan_time;
        },

        eta: function() {
            if (this.mach_state != "RUNNING") {
                return "";
            }

            const remaining = this.plan_time_remaining;
            const d = new Date();
            d.setSeconds(d.getSeconds() + remaining);
            return d.toLocaleString();
        },

        progress: function() {
            if (!this.toolpath.time || this.is_ready) {
                return 0;
            }

            const p = this.plan_time / this.toolpath.time;
            return Math.min(1, p);
        },
        isMacrosPresent: function(){
            return this.config.macros!=undefined;
        },
    },

    events: {
        jog: function(axis, power) {
            const data = { ts: new Date().getTime() };
            data[axis] = power;
            api.put("jog", data);
        },

        back2zero: function(axis0, axis1) {
            this.send(`G0 ${axis0}0 ${axis1}0`);
        },

        step: function(axis, value) {
            this.send(`
                M70
                G91
                G0 ${axis}${value}
                M72
            `);
        },
    },

    ready: function() {
        this.load();

        setInterval(() => {
            this.current_time = new Date().toLocaleTimeString();
        }, 1000);

        SvelteComponents.registerControllerMethods({
            stop: (...args) => this.stop(...args),
            send: (...args) => this.send(...args),
            isAxisHomed: (axis) => this[axis].homed,
            unhome: (...args) => this.unhome(...args),
            set_position: (...args) => this.set_position(...args),
            set_home: (...args) => this.set_home(...args)
        });
    },

    methods: {
        getJogIncrStyle(value) {
            const weight = `font-weight:${this.jog_incr === value ? "bold" : "normal"}`;
            const color = this.jog_incr === value ? "color:#0078e7" : "";

            return [ weight, color ].join(";");
        },

        jog_fn: function(x_jog, y_jog, z_jog, a_jog) {
            const amount = this.jog_incr_amounts[this.display_units][this.jog_incr];

            const xcmd = `X${x_jog * amount}`;
            const ycmd = `Y${y_jog * amount}`;
            const zcmd = `Z${z_jog * amount}`;
            const acmd = `A${a_jog * amount}`;

            this.send(`
                G91
                ${this.metric ? "G21" : "G20"}
                G0 ${xcmd}${ycmd}${zcmd}${acmd}
            `);
        },

        send: function(msg) {
            this.$dispatch("send", msg);
        },

        load: function() {
            const file_time = this.state.selected_time;
            const file = this.state.selected;
            if (this.last_file == file && this.last_file_time == file_time) {
                return;
            }

            this.last_file = file;
            this.last_file_time = file_time;

            this.$broadcast("gcode-load", file);
            this.$broadcast("gcode-line", this.state.line);
            this.toolpath_progress = 0;
            this.load_toolpath(file, file_time);
        },

        load_toolpath: async function(file, file_time) {
            this.toolpath = {};

            if (!file || this.last_file_time != file_time) {
                return;
            }

            this.showGcodeMessage = true;

            while (this.showGcodeMessage) {
                const toolpath = await api.get(`path/${file}`);
                this.toolpath_progress = toolpath.progress;

                if (toolpath.progress === 1 || typeof toolpath.progress == "undefined") {
                    this.showGcodeMessage = false;

                    if (toolpath.bounds) {
                        toolpath.filename = file;
                        this.toolpath_progress = 1;
                        this.toolpath = toolpath;

                        const state = this.$root.state;
                        for (const axis of "xyzabc") {
                            Vue.set(state, `path_min_${axis}`, toolpath.bounds.min[axis]);
                            Vue.set(state, `path_max_${axis}`, toolpath.bounds.max[axis]);
                        }
                    }
                }
            }
        },

        submit_mdi: function() {
            this.send(this.mdi);

            if (!this.history.length || this.history[0] != this.mdi) {
                this.history.unshift(this.mdi);
            }

            this.mdi = "";
        },

        mdi_start_pause: function() {
            if (this.state.xx == "RUNNING") {
                this.pause();
            } else if (this.state.xx == "STOPPING" || this.state.xx == "HOLDING") {
                this.unpause();
            } else {
                this.submit_mdi();
            }
        },

        load_history: function(index) {
            this.mdi = this.history[index];
        },

        open: function() {
            utils.clickFileInput("gcode-file-input");
        },

        upload: function(e) {
            const files = e.target.files || e.dataTransfer.files;
            if (!files.length) {
                return;
            }

            const file = files[0];
            const extension = file.name.split(".").pop();
            switch (extension.toLowerCase()) {
                case "nc":
                case "ngc":
                case "gcode":
                case "gc":
                    break;

                default:
                    alert(`Unsupported file type: ${extension}`);
                    return;
            }

            SvelteComponents.showDialog("Upload", {
                file,
                onComplete: () => {
                    this.last_file_time = undefined; // Force reload
                    this.$broadcast("gcode-reload", file.name);
                }
            });
        },

        delete_current: function() {
            if (this.state.selected) {
                api.delete(`file/${this.state.selected}`);
            }

            this.deleteGCode = false;
        },

        delete_all: function() {
            api.delete("file");
            this.deleteGCode = false;
        },

        home: function(axis) {
            this.ask_home = false;

            if (typeof axis == "undefined") {
                api.put("home");
            } else if (this[axis].homingMode != "manual") {
                api.put(`home/${axis}`);
            } else {
                SvelteComponents.showDialog("ManualHomeAxis", { axis });
            }
        },

        set_home: function(axis, position) {
            api.put(`home/${axis}/set`, { position: parseFloat(position) });
        },

        unhome: function(axis) {
            api.put(`home/${axis}/clear`);
        },

        show_set_position: function(axis) {
            SvelteComponents.showDialog("SetAxisPosition", { axis });
        },

        showMoveToZeroDialog: function(axes) {
            SvelteComponents.showDialog("MoveToZero", { axes });
        },

        showToolpathMessageDialog: function(axis) {
            SvelteComponents.showDialog("Message", { title: this[axis].toolmsg });
        },

        set_position: function(axis, position) {
            api.put(`position/${axis}`, { "position": parseFloat(position) });
        },

        zero_all: function() {
            for (const axis of "xyzabc") {
                if (this[axis].enabled) {
                    this.zero(axis);
                }
            }
        },

        zero: function(axis) {
            if (typeof axis == "undefined") {
                this.zero_all();
            } else {
                this.set_position(axis, 0);
            }
        },

        start_pause: function() {
            if (this.state.xx == "RUNNING") {
                this.pause();
            } else if (this.state.xx == "STOPPING" || this.state.xx == "HOLDING") {
                this.unpause();
            } else {
                this.start();
            }
        },

        start: function() {
            api.put("start");
        },

        pause: function() {
            api.put("pause");
        },

        unpause: function() {
            api.put("unpause");
        },

        optional_pause: function() {
            api.put("pause/optional");
        },

        stop: function() {
            api.put("stop");
        },

        step: function() {
            api.put("step");
        },

        override_feed: function() {
            api.put(`override/feed/${this.feed_override}`);
        },

        override_speed: function() {
            api.put(`override/speed/${this.speed_override}`);
        },

        current: function(axis, value) {
            const x = value / 32.0;
            if (this.state[`${axis}pl`] == x) {
                return;
            }

            const data = {};
            data[`${axis}pl`] = x;
            this.send(JSON.stringify(data));
        },

        showProbeDialog: function(probeType) {
            SvelteComponents.showDialog("Probe", { probeType });
        }
    },

    mixins: [ require("./axis-vars") ]
};