import { DataRange } from "./data_range";
import { GlyphRenderer } from "../renderers/glyph_renderer";
import { logger } from "../../core/logging";
import * as p from "../../core/properties";
import * as bbox from "../../core/util/bbox";
import { includes } from "../../core/util/array";
export class DataRange1d extends DataRange {
    constructor(attrs) {
        super(attrs);
        this._plot_bounds = {};
        this.have_updated_interactively = false;
    }
    static init_DataRange1d() {
        this.define({
            start: [p.Number],
            end: [p.Number],
            range_padding: [p.Number, 0.1],
            range_padding_units: [p.PaddingUnits, "percent"],
            flipped: [p.Boolean, false],
            follow: [p.StartEnd],
            follow_interval: [p.Number],
            default_span: [p.Number, 2],
            only_visible: [p.Boolean, false],
        });
        this.internal({
            scale_hint: [p.String, 'auto'],
        });
    }
    initialize() {
        super.initialize();
        this._initial_start = this.start;
        this._initial_end = this.end;
        this._initial_range_padding = this.range_padding;
        this._initial_range_padding_units = this.range_padding_units;
        this._initial_follow = this.follow;
        this._initial_follow_interval = this.follow_interval;
        this._initial_default_span = this.default_span;
    }
    get min() {
        return Math.min(this.start, this.end);
    }
    get max() {
        return Math.max(this.start, this.end);
    }
    computed_renderers() {
        // TODO (bev) check that renderers actually configured with this range
        const names = this.names;
        let renderers = this.renderers;
        if (renderers.length == 0) {
            for (const plot of this.plots) {
                const rs = plot.renderers.filter((r) => r instanceof GlyphRenderer);
                renderers = renderers.concat(rs);
            }
        }
        if (names.length > 0)
            renderers = renderers.filter((r) => includes(names, r.name));
        logger.debug(`computed ${renderers.length} renderers for DataRange1d ${this.id}`);
        for (const r of renderers) {
            logger.trace(` - ${r.type} ${r.id}`);
        }
        return renderers;
    }
    /*protected*/ _compute_plot_bounds(renderers, bounds) {
        let result = bbox.empty();
        for (const r of renderers) {
            if (bounds[r.id] != null && (r.visible || !this.only_visible))
                result = bbox.union(result, bounds[r.id]);
        }
        return result;
    }
    adjust_bounds_for_aspect(bounds, ratio) {
        const result = bbox.empty();
        let width = bounds.x1 - bounds.x0;
        if (width <= 0) {
            width = 1.0;
        }
        let height = bounds.y1 - bounds.y0;
        if (height <= 0) {
            height = 1.0;
        }
        const xcenter = 0.5 * (bounds.x1 + bounds.x0);
        const ycenter = 0.5 * (bounds.y1 + bounds.y0);
        if (width < ratio * height) {
            width = ratio * height;
        }
        else {
            height = width / ratio;
        }
        result.x1 = xcenter + 0.5 * width;
        result.x0 = xcenter - 0.5 * width;
        result.y1 = ycenter + 0.5 * height;
        result.y0 = ycenter - 0.5 * height;
        return result;
    }
    /*protected*/ _compute_min_max(plot_bounds, dimension) {
        let overall = bbox.empty();
        for (const k in plot_bounds) {
            const v = plot_bounds[k];
            overall = bbox.union(overall, v);
        }
        let min, max;
        if (dimension == 0)
            [min, max] = [overall.x0, overall.x1];
        else
            [min, max] = [overall.y0, overall.y1];
        return [min, max];
    }
    /*protected*/ _compute_range(min, max) {
        const range_padding = this.range_padding; // XXX: ? 0
        let start, end;
        if (this._initial_start != null)
            min = this._initial_start;
        if (this._initial_end != null)
            max = this._initial_end;
        if (this.scale_hint == "log") {
            if (isNaN(min) || !isFinite(min) || min <= 0) {
                if (isNaN(max) || !isFinite(max) || max <= 0)
                    min = 0.1;
                else
                    min = max / 100;
                logger.warn(`could not determine minimum data value for log axis, DataRange1d using value ${min}`);
            }
            if (isNaN(max) || !isFinite(max) || max <= 0) {
                if (isNaN(min) || !isFinite(min) || min <= 0)
                    max = 10;
                else
                    max = min * 100;
                logger.warn(`could not determine maximum data value for log axis, DataRange1d using value ${max}`);
            }
            let center, span;
            if (max == min) {
                span = this.default_span + 0.001;
                center = Math.log(min) / Math.log(10);
            }
            else {
                let log_min, log_max;
                if (this.range_padding_units == "percent") {
                    log_min = Math.log(min) / Math.log(10);
                    log_max = Math.log(max) / Math.log(10);
                    span = (log_max - log_min) * (1 + range_padding);
                }
                else {
                    log_min = Math.log(min - range_padding) / Math.log(10);
                    log_max = Math.log(max + range_padding) / Math.log(10);
                    span = log_max - log_min;
                }
                center = (log_min + log_max) / 2.0;
            }
            start = 10 ** (center - span / 2.0);
            end = 10 ** (center + span / 2.0);
        }
        else {
            let span;
            if (max == min)
                span = this.default_span;
            else {
                if (this.range_padding_units == "percent")
                    span = (max - min) * (1 + range_padding);
                else
                    span = (max - min) + 2 * range_padding;
            }
            const center = (max + min) / 2.0;
            start = center - span / 2.0;
            end = center + span / 2.0;
        }
        let follow_sign = +1;
        if (this.flipped) {
            [start, end] = [end, start];
            follow_sign = -1;
        }
        const follow_interval = this.follow_interval;
        if (follow_interval != null && Math.abs(start - end) > follow_interval) {
            if (this.follow == 'start')
                end = start + follow_sign * follow_interval;
            else if (this.follow == 'end')
                start = end - follow_sign * follow_interval;
        }
        return [start, end];
    }
    update(bounds, dimension, bounds_id, ratio) {
        if (this.have_updated_interactively)
            return;
        const renderers = this.computed_renderers();
        // update the raw data bounds for all renderers we care about
        let total_bounds = this._compute_plot_bounds(renderers, bounds);
        if (ratio != null)
            total_bounds = this.adjust_bounds_for_aspect(total_bounds, ratio);
        this._plot_bounds[bounds_id] = total_bounds;
        // compute the min/mix for our specified dimension
        const [min, max] = this._compute_min_max(this._plot_bounds, dimension);
        // derive start, end from bounds and data range config
        let [start, end] = this._compute_range(min, max);
        if (this._initial_start != null) {
            if (this.scale_hint == "log") {
                if (this._initial_start > 0)
                    start = this._initial_start;
            }
            else
                start = this._initial_start;
        }
        if (this._initial_end != null) {
            if (this.scale_hint == "log") {
                if (this._initial_end > 0)
                    end = this._initial_end;
            }
            else
                end = this._initial_end;
        }
        // only trigger updates when there are changes
        const [_start, _end] = [this.start, this.end];
        if (start != _start || end != _end) {
            const new_range = {};
            if (start != _start)
                new_range.start = start;
            if (end != _end)
                new_range.end = end;
            this.setv(new_range);
        }
        if (this.bounds == 'auto')
            this.setv({ bounds: [start, end] }, { silent: true });
        this.change.emit();
    }
    reset() {
        this.have_updated_interactively = false;
        // change events silenced as PlotView.update_dataranges triggers property callbacks
        this.setv({
            range_padding: this._initial_range_padding,
            range_padding_units: this._initial_range_padding_units,
            follow: this._initial_follow,
            follow_interval: this._initial_follow_interval,
            default_span: this._initial_default_span,
        }, { silent: true });
        this.change.emit();
    }
}
DataRange1d.__name__ = "DataRange1d";
DataRange1d.init_DataRange1d();
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