import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { ComponentHarness, HarnessPredicate } from '@angular/cdk/testing';

class _MatRadioGroupHarnessBase extends ComponentHarness {
    /** Gets the name of the radio-group. */
    async getName() {
        const hostName = await this._getGroupNameFromHost();
        // It's not possible to always determine the "name" of a radio-group by reading
        // the attribute. This is because the radio-group does not set the "name" as an
        // element attribute if the "name" value is set through a binding.
        if (hostName !== null) {
            return hostName;
        }
        // In case we couldn't determine the "name" of a radio-group by reading the
        // "name" attribute, we try to determine the "name" of the group by going
        // through all radio buttons.
        const radioNames = await this._getNamesFromRadioButtons();
        if (!radioNames.length) {
            return null;
        }
        if (!this._checkRadioNamesInGroupEqual(radioNames)) {
            throw Error('Radio buttons in radio-group have mismatching names.');
        }
        return radioNames[0];
    }
    /** Gets the id of the radio-group. */
    async getId() {
        return (await this.host()).getProperty('id');
    }
    /** Gets the checked radio-button in a radio-group. */
    async getCheckedRadioButton() {
        for (let radioButton of await this.getRadioButtons()) {
            if (await radioButton.isChecked()) {
                return radioButton;
            }
        }
        return null;
    }
    /** Gets the checked value of the radio-group. */
    async getCheckedValue() {
        const checkedRadio = await this.getCheckedRadioButton();
        if (!checkedRadio) {
            return null;
        }
        return checkedRadio.getValue();
    }
    /**
     * Gets a list of radio buttons which are part of the radio-group.
     * @param filter Optionally filters which radio buttons are included.
     */
    async getRadioButtons(filter) {
        return this.locatorForAll(this._buttonClass.with(filter))();
    }
    /**
     * Checks a radio button in this group.
     * @param filter An optional filter to apply to the child radio buttons. The first tab matching
     *     the filter will be selected.
     */
    async checkRadioButton(filter) {
        const radioButtons = await this.getRadioButtons(filter);
        if (!radioButtons.length) {
            throw Error(`Could not find radio button matching ${JSON.stringify(filter)}`);
        }
        return radioButtons[0].check();
    }
    /** Gets the name attribute of the host element. */
    async _getGroupNameFromHost() {
        return (await this.host()).getAttribute('name');
    }
    /** Gets a list of the name attributes of all child radio buttons. */
    async _getNamesFromRadioButtons() {
        const groupNames = [];
        for (let radio of await this.getRadioButtons()) {
            const radioName = await radio.getName();
            if (radioName !== null) {
                groupNames.push(radioName);
            }
        }
        return groupNames;
    }
    /** Checks if the specified radio names are all equal. */
    _checkRadioNamesInGroupEqual(radioNames) {
        let groupName = null;
        for (let radioName of radioNames) {
            if (groupName === null) {
                groupName = radioName;
            }
            else if (groupName !== radioName) {
                return false;
            }
        }
        return true;
    }
    /**
     * Checks if a radio-group harness has the given name. Throws if a radio-group with
     * matching name could be found but has mismatching radio-button names.
     */
    static async _checkRadioGroupName(harness, name) {
        // Check if there is a radio-group which has the "name" attribute set
        // to the expected group name. It's not possible to always determine
        // the "name" of a radio-group by reading the attribute. This is because
        // the radio-group does not set the "name" as an element attribute if the
        // "name" value is set through a binding.
        if ((await harness._getGroupNameFromHost()) === name) {
            return true;
        }
        // Check if there is a group with radio-buttons that all have the same
        // expected name. This implies that the group has the given name. It's
        // not possible to always determine the name of a radio-group through
        // the attribute because there is
        const radioNames = await harness._getNamesFromRadioButtons();
        if (radioNames.indexOf(name) === -1) {
            return false;
        }
        if (!harness._checkRadioNamesInGroupEqual(radioNames)) {
            throw Error(`The locator found a radio-group with name "${name}", but some ` +
                `radio-button's within the group have mismatching names, which is invalid.`);
        }
        return true;
    }
}
/** Harness for interacting with an MDC-based mat-radio-group in tests. */
class MatRadioGroupHarness extends _MatRadioGroupHarnessBase {
    constructor() {
        super(...arguments);
        this._buttonClass = MatRadioButtonHarness;
    }
    /** The selector for the host element of a `MatRadioGroup` instance. */
    static { this.hostSelector = '.mat-mdc-radio-group'; }
    /**
     * Gets a `HarnessPredicate` that can be used to search for a radio group with specific
     * attributes.
     * @param options Options for filtering which radio group instances are considered a match.
     * @return a `HarnessPredicate` configured with the given options.
     */
    static with(options = {}) {
        return new HarnessPredicate(this, options).addOption('name', options.name, MatRadioGroupHarness._checkRadioGroupName);
    }
}
class _MatRadioButtonHarnessBase extends ComponentHarness {
    constructor() {
        super(...arguments);
        this._input = this.locatorFor('input');
    }
    /** Whether the radio-button is checked. */
    async isChecked() {
        const checked = (await this._input()).getProperty('checked');
        return coerceBooleanProperty(await checked);
    }
    /** Whether the radio-button is disabled. */
    async isDisabled() {
        const disabled = (await this._input()).getAttribute('disabled');
        return coerceBooleanProperty(await disabled);
    }
    /** Whether the radio-button is required. */
    async isRequired() {
        const required = (await this._input()).getAttribute('required');
        return coerceBooleanProperty(await required);
    }
    /** Gets the radio-button's name. */
    async getName() {
        return (await this._input()).getAttribute('name');
    }
    /** Gets the radio-button's id. */
    async getId() {
        return (await this.host()).getProperty('id');
    }
    /**
     * Gets the value of the radio-button. The radio-button value will be converted to a string.
     *
     * Note: This means that for radio-button's with an object as a value `[object Object]` is
     * intentionally returned.
     */
    async getValue() {
        return (await this._input()).getProperty('value');
    }
    /** Gets the radio-button's label text. */
    async getLabelText() {
        return (await this._textLabel()).text();
    }
    /** Focuses the radio-button. */
    async focus() {
        return (await this._input()).focus();
    }
    /** Blurs the radio-button. */
    async blur() {
        return (await this._input()).blur();
    }
    /** Whether the radio-button is focused. */
    async isFocused() {
        return (await this._input()).isFocused();
    }
    /**
     * Puts the radio-button in a checked state by clicking it if it is currently unchecked,
     * or doing nothing if it is already checked.
     */
    async check() {
        if (!(await this.isChecked())) {
            return (await this._clickLabel()).click();
        }
    }
}
/** Harness for interacting with an MDC-based mat-radio-button in tests. */
class MatRadioButtonHarness extends _MatRadioButtonHarnessBase {
    constructor() {
        super(...arguments);
        this._textLabel = this.locatorFor('label');
        this._clickLabel = this._textLabel;
    }
    /** The selector for the host element of a `MatRadioButton` instance. */
    static { this.hostSelector = '.mat-mdc-radio-button'; }
    /**
     * Gets a `HarnessPredicate` that can be used to search for a radio button with specific
     * attributes.
     * @param options Options for filtering which radio button instances are considered a match.
     * @return a `HarnessPredicate` configured with the given options.
     */
    static with(options = {}) {
        return new HarnessPredicate(this, options)
            .addOption('label', options.label, (harness, label) => HarnessPredicate.stringMatches(harness.getLabelText(), label))
            .addOption('name', options.name, async (harness, name) => (await harness.getName()) === name)
            .addOption('checked', options.checked, async (harness, checked) => (await harness.isChecked()) == checked);
    }
}

export { MatRadioButtonHarness, MatRadioGroupHarness, _MatRadioButtonHarnessBase, _MatRadioGroupHarnessBase };
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