var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
import { html, LitElement, nothing } from 'lit';
import { property, query, queryAssignedElements, queryAssignedNodes, state, } from 'lit/decorators.js';
import { guard } from 'lit/directives/guard.js';
import { ifDefined } from 'lit/directives/if-defined.js';
import { styleMap } from 'lit/directives/style-map.js';
import { addThemingController } from '../../theming/theming-controller.js';
import { addKeybindings, arrowDown, arrowLeft, arrowRight, arrowUp, endKey, homeKey, } from '../common/controllers/key-bindings.js';
import { registerComponent } from '../common/definitions/register.js';
import { EventEmitterMixin } from '../common/mixins/event-emitter.js';
import { FormAssociatedMixin } from '../common/mixins/forms/associated.js';
import { FormValueNumberTransformers } from '../common/mixins/forms/form-transformers.js';
import { createFormValueState } from '../common/mixins/forms/form-value.js';
import { asNumber, clamp, formatString, isEmpty, isLTR, numberOfDecimals, roundPrecise, } from '../common/util.js';
import IgcIconComponent from '../icon/icon.js';
import IgcRatingSymbolComponent from './rating-symbol.js';
import { styles } from './themes/rating.base.css.js';
import { styles as shared } from './themes/shared/rating.common.css.js';
import { all } from './themes/themes.js';
class IgcRatingComponent extends FormAssociatedMixin(EventEmitterMixin(LitElement)) {
    static register() {
        registerComponent(IgcRatingComponent, IgcIconComponent, IgcRatingSymbolComponent);
    }
    get isInteractive() {
        return !(this.readOnly || this.disabled);
    }
    get hasProjectedSymbols() {
        return this.ratingSymbols.length > 0;
    }
    get valueText() {
        const value = this.round(this.value);
        return this.valueFormat
            ? formatString(this.valueFormat, value, this.max)
            : `${value} of ${this.max}`;
    }
    set max(value) {
        this._max = this.hasProjectedSymbols
            ? this.ratingSymbols.length
            : Math.max(0, value);
        if (this._max < this.value) {
            this.value = this._max;
        }
    }
    get max() {
        return this._max;
    }
    set step(value) {
        this._step = this.single ? 1 : clamp(value, 0.001, 1);
    }
    get step() {
        return this._step;
    }
    set value(number) {
        const value = this.hasUpdated
            ? clamp(asNumber(number), 0, this.max)
            : Math.max(asNumber(number), 0);
        this._formValue.setValueAndFormState(value);
    }
    get value() {
        return this._formValue.value;
    }
    set single(value) {
        this._single = Boolean(value);
        if (this._single) {
            this.step = 1;
            this.value = Math.ceil(this.value);
        }
    }
    get single() {
        return this._single;
    }
    constructor() {
        super();
        this._formValue = createFormValueState(this, {
            initialValue: 0,
            transformers: FormValueNumberTransformers,
        });
        this._max = 5;
        this._step = 1;
        this._single = false;
        this.hoverValue = -1;
        this.hoverState = false;
        this.hoverPreview = false;
        this.readOnly = false;
        this.allowReset = false;
        addThemingController(this, all);
        addKeybindings(this, {
            skip: () => !this.isInteractive,
        })
            .set(arrowUp, () => this.emitValueUpdate(this.value + this.step))
            .set(arrowRight, () => this.emitValueUpdate(isLTR(this) ? this.value + this.step : this.value - this.step))
            .set(arrowDown, () => this.emitValueUpdate(this.value - this.step))
            .set(arrowLeft, () => this.emitValueUpdate(isLTR(this) ? this.value - this.step : this.value + this.step))
            .set(homeKey, () => this.emitValueUpdate(this.step))
            .set(endKey, () => this.emitValueUpdate(this.max));
    }
    async firstUpdated() {
        await this.updateComplete;
        this._formValue.setValueAndFormState(clamp(this.value, 0, this.max));
        this._pristine = true;
    }
    handleClick({ clientX }) {
        const value = this.calcNewValue(clientX);
        const sameValue = this.value === value;
        if (this.allowReset && sameValue) {
            this.emitValueUpdate(0);
        }
        else if (!sameValue) {
            this.emitValueUpdate(value);
        }
    }
    handlePointerMove({ clientX }) {
        const value = this.calcNewValue(clientX);
        if (this.hoverValue !== value) {
            this.hoverValue = value;
            this.emitEvent('igcHover', { detail: this.hoverValue });
        }
    }
    emitValueUpdate(value) {
        this._setTouchedState();
        this.value = clamp(value, 0, this.max);
        if (value === this.value) {
            this.emitEvent('igcChange', { detail: this.value });
        }
    }
    handleSlotChange() {
        if (this.hasProjectedSymbols) {
            this.max = this.ratingSymbols.length;
            this.requestUpdate();
        }
    }
    handleHoverEnabled() {
        this.hoverState = true;
    }
    handleHoverDisabled() {
        this.hoverState = false;
    }
    calcNewValue(x) {
        const { width, left, right } = this.container.getBoundingClientRect();
        const percent = isLTR(this) ? (x - left) / width : (right - x) / width;
        const value = this.round(this.max * percent);
        return clamp(value, this.step, this.max);
    }
    round(value) {
        return roundPrecise(Math.ceil(value / this.step) * this.step, numberOfDecimals(this.step));
    }
    clipSymbol(index, isLTR = true) {
        const value = this.hoverState ? this.hoverValue : this.value;
        const progress = index + 1 - value;
        const exclusive = progress === 0 || this.value === index + 1 ? 0 : 1;
        const selection = this.single ? exclusive : progress;
        const activate = (p) => clamp(p * 100, 0, 100);
        const forward = `inset(0 ${activate(isLTR ? selection : 1 - selection)}% 0 0)`;
        const backward = `inset(0 0 0 ${activate(isLTR ? 1 - selection : selection)}%)`;
        return {
            backward: isLTR ? backward : forward,
            forward: isLTR ? forward : backward,
        };
    }
    stepUp(n = 1) {
        this.value += this.round(n * this.step);
    }
    stepDown(n = 1) {
        this.value -= this.round(n * this.step);
    }
    *renderSymbols() {
        const ltr = isLTR(this);
        for (let i = 0; i < this.max; i++) {
            const { forward, backward } = this.clipSymbol(i, ltr);
            yield html `<igc-rating-symbol exportparts="symbol, full, empty">
        <igc-icon
          collection="default"
          name="star_filled"
          style=${styleMap({ clipPath: forward })}
        ></igc-icon>
        <igc-icon
          collection="default"
          name="star_outlined"
          style=${styleMap({ clipPath: backward })}
          slot="empty"
        ></igc-icon>
      </igc-rating-symbol>`;
        }
    }
    clipProjected() {
        const ltr = isLTR(this);
        const partFull = '[part="symbol full"]';
        const partEmpty = '[part="symbol empty"]';
        for (const [i, symbol] of this.ratingSymbols.entries()) {
            const full = symbol.renderRoot.querySelector(partFull);
            const empty = symbol.renderRoot.querySelector(partEmpty);
            const { forward, backward } = this.clipSymbol(i, ltr);
            if (full) {
                full.style.clipPath = forward;
            }
            if (empty) {
                empty.style.clipPath = backward;
            }
        }
    }
    render() {
        const props = [
            this.value,
            this.hoverValue,
            this.max,
            this.step,
            this.single,
            this.hoverState,
            this.ratingSymbols,
        ];
        const hoverActive = this.hoverPreview && this.isInteractive;
        return html `
      <label part="label" id="rating-label" ?hidden=${!this.label}
        >${this.label}</label
      >
      <div
        part="base"
        role="slider"
        tabindex=${ifDefined(this.disabled ? undefined : 0)}
        aria-labelledby="rating-label"
        aria-valuemin="0"
        aria-valuenow=${this.value}
        aria-valuemax=${this.max}
        aria-valuetext=${this.valueText}
      >
        <div
          aria-hidden="true"
          part="symbols"
          @click=${this.isInteractive ? this.handleClick : nothing}
          @pointerenter=${hoverActive ? this.handleHoverEnabled : nothing}
          @pointerleave=${hoverActive ? this.handleHoverDisabled : nothing}
          @pointermove=${hoverActive ? this.handlePointerMove : nothing}
        >
          <slot name="symbol" @slotchange=${this.handleSlotChange}>
            ${guard(props, () => this.hasProjectedSymbols
            ? this.clipProjected()
            : this.renderSymbols())}
          </slot>
        </div>
        <label part="value-label" ?hidden=${isEmpty(this.valueLabel)}>
          <slot name="value-label"></slot>
        </label>
      </div>
    `;
    }
}
IgcRatingComponent.tagName = 'igc-rating';
IgcRatingComponent.styles = [styles, shared];
export default IgcRatingComponent;
__decorate([
    queryAssignedElements({
        selector: IgcRatingSymbolComponent.tagName,
        slot: 'symbol',
    })
], IgcRatingComponent.prototype, "ratingSymbols", void 0);
__decorate([
    query('[part="symbols"]', true)
], IgcRatingComponent.prototype, "container", void 0);
__decorate([
    queryAssignedNodes({ slot: 'value-label', flatten: true })
], IgcRatingComponent.prototype, "valueLabel", void 0);
__decorate([
    state()
], IgcRatingComponent.prototype, "hoverValue", void 0);
__decorate([
    state()
], IgcRatingComponent.prototype, "hoverState", void 0);
__decorate([
    property({ type: Number })
], IgcRatingComponent.prototype, "max", null);
__decorate([
    property({ type: Number })
], IgcRatingComponent.prototype, "step", null);
__decorate([
    property()
], IgcRatingComponent.prototype, "label", void 0);
__decorate([
    property({ attribute: 'value-format' })
], IgcRatingComponent.prototype, "valueFormat", void 0);
__decorate([
    property({ type: Number })
], IgcRatingComponent.prototype, "value", null);
__decorate([
    property({ type: Boolean, reflect: true, attribute: 'hover-preview' })
], IgcRatingComponent.prototype, "hoverPreview", void 0);
__decorate([
    property({ type: Boolean, reflect: true, attribute: 'readonly' })
], IgcRatingComponent.prototype, "readOnly", void 0);
__decorate([
    property({ type: Boolean, reflect: true })
], IgcRatingComponent.prototype, "single", null);
__decorate([
    property({ type: Boolean, reflect: true, attribute: 'allow-reset' })
], IgcRatingComponent.prototype, "allowReset", void 0);
//# sourceMappingURL=rating.js.map