/*! @azure/msal-react v3.0.17 2025-08-05 */
'use strict';
import React__default, { useEffect, useMemo, useReducer } from 'react';
import { WrapperSKU, InteractionStatus, EventMessageUtils } from '@azure/msal-browser';
import { MsalContext } from './MsalContext.js';
import { accountArraysAreEqual } from './utils/utilities.js';
import { version, name } from './packageMetadata.js';

/*
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
const MsalProviderActionType = {
    UNBLOCK_INPROGRESS: "UNBLOCK_INPROGRESS",
    EVENT: "EVENT",
};
/**
 * Returns the next inProgress and accounts state based on event message
 * @param previousState
 * @param action
 */
const reducer = (previousState, action) => {
    const { type, payload } = action;
    let newInProgress = previousState.inProgress;
    switch (type) {
        case MsalProviderActionType.UNBLOCK_INPROGRESS:
            if (previousState.inProgress === InteractionStatus.Startup) {
                newInProgress = InteractionStatus.None;
                payload.logger.info("MsalProvider - handleRedirectPromise resolved, setting inProgress to 'none'");
            }
            break;
        case MsalProviderActionType.EVENT:
            const message = payload.message;
            const status = EventMessageUtils.getInteractionStatusFromEvent(message, previousState.inProgress);
            if (status) {
                payload.logger.info(`MsalProvider - ${message.eventType} results in setting inProgress from ${previousState.inProgress} to ${status}`);
                newInProgress = status;
            }
            break;
        default:
            throw new Error(`Unknown action type: ${type}`);
    }
    if (newInProgress === InteractionStatus.Startup) {
        // Can't start checking accounts until initialization is complete
        return previousState;
    }
    const currentAccounts = payload.instance.getAllAccounts();
    if (newInProgress !== previousState.inProgress &&
        !accountArraysAreEqual(currentAccounts, previousState.accounts)) {
        // Both inProgress and accounts changed
        return {
            ...previousState,
            inProgress: newInProgress,
            accounts: currentAccounts,
        };
    }
    else if (newInProgress !== previousState.inProgress) {
        // Only only inProgress changed
        return {
            ...previousState,
            inProgress: newInProgress,
        };
    }
    else if (!accountArraysAreEqual(currentAccounts, previousState.accounts)) {
        // Only accounts changed
        return {
            ...previousState,
            accounts: currentAccounts,
        };
    }
    else {
        // Nothing changed
        return previousState;
    }
};
/**
 * MSAL context provider component. This must be rendered above any other components that use MSAL.
 */
function MsalProvider({ instance, children, }) {
    useEffect(() => {
        instance.initializeWrapperLibrary(WrapperSKU.React, version);
    }, [instance]);
    // Create a logger instance for msal-react with the same options as PublicClientApplication
    const logger = useMemo(() => {
        return instance.getLogger().clone(name, version);
    }, [instance]);
    const [state, updateState] = useReducer(reducer, undefined, () => {
        // Lazy initialization of the initial state
        return {
            inProgress: InteractionStatus.Startup,
            accounts: [],
        };
    });
    useEffect(() => {
        const callbackId = instance.addEventCallback((message) => {
            updateState({
                payload: {
                    instance,
                    logger,
                    message,
                },
                type: MsalProviderActionType.EVENT,
            });
        });
        logger.verbose(`MsalProvider - Registered event callback with id: ${callbackId}`);
        instance
            .initialize()
            .then(() => {
            instance
                .handleRedirectPromise()
                .catch(() => {
                // Errors should be handled by listening to the LOGIN_FAILURE event
                return;
            })
                .finally(() => {
                /*
                 * If handleRedirectPromise returns a cached promise the necessary events may not be fired
                 * This is a fallback to prevent inProgress from getting stuck in 'startup'
                 */
                updateState({
                    payload: {
                        instance,
                        logger,
                    },
                    type: MsalProviderActionType.UNBLOCK_INPROGRESS,
                });
            });
        })
            .catch(() => {
            // Errors should be handled by listening to the LOGIN_FAILURE event
            return;
        });
        return () => {
            // Remove callback when component unmounts or accounts change
            if (callbackId) {
                logger.verbose(`MsalProvider - Removing event callback ${callbackId}`);
                instance.removeEventCallback(callbackId);
            }
        };
    }, [instance, logger]);
    const contextValue = {
        instance,
        inProgress: state.inProgress,
        accounts: state.accounts,
        logger,
    };
    return (React__default.createElement(MsalContext.Provider, { value: contextValue }, children));
}

export { MsalProvider };
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