/*
 * Application Insights JavaScript SDK - Core, 3.2.0
 * Copyright (c) Microsoft and contributors. All rights reserved.
 */


"use strict";
import { arrForEach, dumpObj, isArray, isFunction, isNullOrUndefined, isUndefined, objForEachKey, objFreeze, objKeys } from "@nevware21/ts-utils";
import { _applyDefaultValue } from "../Config/ConfigDefaults";
import { createDynamicConfig } from "../Config/DynamicConfig";
import { _DYN_CREATE_NEW, _DYN_DIAG_LOG, _DYN_GET_NEXT, _DYN_GET_PLUGIN, _DYN_IDENTIFIER, _DYN_IS_ASYNC, _DYN_IS_INITIALIZED, _DYN_LENGTH, _DYN_LOGGER, _DYN_PROCESS_NEXT, _DYN_PUSH, _DYN_SET_DF, _DYN_SET_NEXT_PLUGIN, _DYN_TEARDOWN, _DYN_UNLOAD, _DYN_UPDATE } from "../__DynamicConstants";
import { _throwInternal, safeGetLogger } from "./DiagnosticLogger";
import { proxyFunctions } from "./HelperFuncs";
import { STR_CORE, STR_DISABLED, STR_EMPTY, STR_EXTENSION_CONFIG, STR_PRIORITY, STR_PROCESS_TELEMETRY } from "./InternalConstants";
import { doPerf } from "./PerfManager";
import { _getPluginState } from "./TelemetryHelpers";
var strTelemetryPluginChain = "TelemetryPluginChain";
var strHasRunFlags = "_hasRun";
var strGetTelCtx = "_getTelCtx";
var _chainId = 0;
function _getNextProxyStart(proxy, core, startAt) {
    while (proxy) {
        if (proxy[_DYN_GET_PLUGIN /* @min:%2egetPlugin */]() === startAt) {
            return proxy;
        }
        proxy = proxy[_DYN_GET_NEXT /* @min:%2egetNext */]();
    }
    // This wasn't found in the existing chain so create an isolated one with just this plugin
    return createTelemetryProxyChain([startAt], core.config || {}, core);
}
/**
 * @ignore
 * @param telemetryChain
 * @param dynamicHandler
 * @param core
 * @param startAt - Identifies the next plugin to execute, if null there is no "next" plugin and if undefined it should assume the start of the chain
 * @returns
 */
function _createInternalContext(telemetryChain, dynamicHandler, core, startAt) {
    // We have a special case where we want to start execution from this specific plugin
    // or we simply reuse the existing telemetry plugin chain (normal execution case)
    var _nextProxy = null; // By Default set as no next plugin
    var _onComplete = [];
    if (!dynamicHandler) {
        dynamicHandler = createDynamicConfig({}, null, core[_DYN_LOGGER /* @min:%2elogger */]);
    }
    if (startAt !== null) {
        // There is no next element (null) vs not defined (undefined) so use the full chain
        _nextProxy = startAt ? _getNextProxyStart(telemetryChain, core, startAt) : telemetryChain;
    }
    var context = {
        _next: _moveNext,
        ctx: {
            core: function () {
                return core;
            },
            diagLog: function () {
                return safeGetLogger(core, dynamicHandler.cfg);
            },
            getCfg: function () {
                return dynamicHandler.cfg;
            },
            getExtCfg: _resolveExtCfg,
            getConfig: _getConfig,
            hasNext: function () {
                return !!_nextProxy;
            },
            getNext: function () {
                return _nextProxy;
            },
            setNext: function (nextPlugin) {
                _nextProxy = nextPlugin;
            },
            iterate: _iterateChain,
            onComplete: _addOnComplete
        }
    };
    function _addOnComplete(onComplete, that) {
        var args = [];
        for (var _i = 2; _i < arguments.length; _i++) {
            args[_i - 2] = arguments[_i];
        }
        if (onComplete) {
            _onComplete[_DYN_PUSH /* @min:%2epush */]({
                func: onComplete,
                self: !isUndefined(that) ? that : context.ctx,
                args: args
            });
        }
    }
    function _moveNext() {
        var nextProxy = _nextProxy;
        // Automatically move to the next plugin
        _nextProxy = nextProxy ? nextProxy[_DYN_GET_NEXT /* @min:%2egetNext */]() : null;
        if (!nextProxy) {
            var onComplete = _onComplete;
            if (onComplete && onComplete[_DYN_LENGTH /* @min:%2elength */] > 0) {
                arrForEach(onComplete, function (completeDetails) {
                    try {
                        completeDetails.func.call(completeDetails.self, completeDetails.args);
                    }
                    catch (e) {
                        _throwInternal(core[_DYN_LOGGER /* @min:%2elogger */], 2 /* eLoggingSeverity.WARNING */, 73 /* _eInternalMessageId.PluginException */, "Unexpected Exception during onComplete - " + dumpObj(e));
                    }
                });
                _onComplete = [];
            }
        }
        return nextProxy;
    }
    function _getExtCfg(identifier, createIfMissing) {
        var idCfg = null;
        var cfg = dynamicHandler.cfg;
        if (cfg && identifier) {
            var extCfg = cfg[STR_EXTENSION_CONFIG /* @min:%2eextensionConfig */];
            if (!extCfg && createIfMissing) {
                extCfg = {};
            }
            // Always set the value so that the property always exists
            cfg[STR_EXTENSION_CONFIG] = extCfg; // Note: it is valid for the "value" to be undefined
            // Calling `ref()` has a side effect of causing the referenced property to become dynamic  (if not already)
            extCfg = dynamicHandler.ref(cfg, STR_EXTENSION_CONFIG);
            if (extCfg) {
                idCfg = extCfg[identifier];
                if (!idCfg && createIfMissing) {
                    idCfg = {};
                }
                // Always set the value so that the property always exists
                extCfg[identifier] = idCfg; // Note: it is valid for the "value" to be undefined
                // Calling `ref()` has a side effect of causing the referenced property to become dynamic  (if not already)
                idCfg = dynamicHandler.ref(extCfg, identifier);
            }
        }
        return idCfg;
    }
    function _resolveExtCfg(identifier, defaultValues) {
        var newConfig = _getExtCfg(identifier, true);
        if (defaultValues) {
            // Enumerate over the defaultValues and if not already populated attempt to
            // find a value from the root config or use the default value
            objForEachKey(defaultValues, function (field, defaultValue) {
                // for each unspecified field, set the default value
                if (isNullOrUndefined(newConfig[field])) {
                    var cfgValue = dynamicHandler.cfg[field];
                    if (cfgValue || !isNullOrUndefined(cfgValue)) {
                        newConfig[field] = cfgValue;
                    }
                }
                _applyDefaultValue(dynamicHandler, newConfig, field, defaultValue);
            });
        }
        return dynamicHandler[_DYN_SET_DF /* @min:%2esetDf */](newConfig, defaultValues);
    }
    function _getConfig(identifier, field, defaultValue) {
        if (defaultValue === void 0) { defaultValue = false; }
        var theValue;
        var extConfig = _getExtCfg(identifier, false);
        var rootConfig = dynamicHandler.cfg;
        if (extConfig && (extConfig[field] || !isNullOrUndefined(extConfig[field]))) {
            theValue = extConfig[field];
        }
        else if (rootConfig[field] || !isNullOrUndefined(rootConfig[field])) {
            theValue = rootConfig[field];
        }
        return (theValue || !isNullOrUndefined(theValue)) ? theValue : defaultValue;
    }
    function _iterateChain(cb) {
        // Keep processing until we reach the end of the chain
        var nextPlugin;
        while (!!(nextPlugin = context._next())) {
            var plugin = nextPlugin[_DYN_GET_PLUGIN /* @min:%2egetPlugin */]();
            if (plugin) {
                // callback with the current on
                cb(plugin);
            }
        }
    }
    return context;
}
/**
 * Creates a new Telemetry Item context with the current config, core and plugin execution chain
 * @param plugins - The plugin instances that will be executed
 * @param config - The current config
 * @param core - The current core instance
 * @param startAt - Identifies the next plugin to execute, if null there is no "next" plugin and if undefined it should assume the start of the chain
 */
export function createProcessTelemetryContext(telemetryChain, cfg, core, startAt) {
    var config = createDynamicConfig(cfg);
    var internalContext = _createInternalContext(telemetryChain, config, core, startAt);
    var context = internalContext.ctx;
    function _processNext(env) {
        var nextPlugin = internalContext._next();
        if (nextPlugin) {
            // Run the next plugin which will call "processNext()"
            nextPlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */](env, context);
        }
        return !nextPlugin;
    }
    function _createNew(plugins, startAt) {
        if (plugins === void 0) { plugins = null; }
        if (isArray(plugins)) {
            plugins = createTelemetryProxyChain(plugins, config.cfg, core, startAt);
        }
        return createProcessTelemetryContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), config.cfg, core, startAt);
    }
    context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;
    context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;
    return context;
}
/**
 * Creates a new Telemetry Item context with the current config, core and plugin execution chain for handling the unloading of the chain
 * @param plugins - The plugin instances that will be executed
 * @param config - The current config
 * @param core - The current core instance
 * @param startAt - Identifies the next plugin to execute, if null there is no "next" plugin and if undefined it should assume the start of the chain
 */
export function createProcessTelemetryUnloadContext(telemetryChain, core, startAt) {
    var config = createDynamicConfig(core.config);
    var internalContext = _createInternalContext(telemetryChain, config, core, startAt);
    var context = internalContext.ctx;
    function _processNext(unloadState) {
        var nextPlugin = internalContext._next();
        nextPlugin && nextPlugin[_DYN_UNLOAD /* @min:%2eunload */](context, unloadState);
        return !nextPlugin;
    }
    function _createNew(plugins, startAt) {
        if (plugins === void 0) { plugins = null; }
        if (isArray(plugins)) {
            plugins = createTelemetryProxyChain(plugins, config.cfg, core, startAt);
        }
        return createProcessTelemetryUnloadContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), core, startAt);
    }
    context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;
    context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;
    return context;
}
/**
 * Creates a new Telemetry Item context with the current config, core and plugin execution chain for updating the configuration
 * @param plugins - The plugin instances that will be executed
 * @param config - The current config
 * @param core - The current core instance
 * @param startAt - Identifies the next plugin to execute, if null there is no "next" plugin and if undefined it should assume the start of the chain
 */
export function createProcessTelemetryUpdateContext(telemetryChain, core, startAt) {
    var config = createDynamicConfig(core.config);
    var internalContext = _createInternalContext(telemetryChain, config, core, startAt);
    var context = internalContext.ctx;
    function _processNext(updateState) {
        return context.iterate(function (plugin) {
            if (isFunction(plugin[_DYN_UPDATE /* @min:%2eupdate */])) {
                plugin[_DYN_UPDATE /* @min:%2eupdate */](context, updateState);
            }
        });
    }
    function _createNew(plugins, startAt) {
        if (plugins === void 0) { plugins = null; }
        if (isArray(plugins)) {
            plugins = createTelemetryProxyChain(plugins, config.cfg, core, startAt);
        }
        return createProcessTelemetryUpdateContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), core, startAt);
    }
    context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;
    context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;
    return context;
}
/**
 * Creates an execution chain from the array of plugins
 * @param plugins - The array of plugins that will be executed in this order
 * @param defItemCtx - The default execution context to use when no telemetry context is passed to processTelemetry(), this
 * should be for legacy plugins only. Currently, only used for passing the current core instance and to provide better error
 * reporting (hasRun) when errors occur.
 */
export function createTelemetryProxyChain(plugins, config, core, startAt) {
    var firstProxy = null;
    var add = startAt ? false : true;
    if (isArray(plugins) && plugins[_DYN_LENGTH /* @min:%2elength */] > 0) {
        // Create the proxies and wire up the next plugin chain
        var lastProxy_1 = null;
        arrForEach(plugins, function (thePlugin) {
            if (!add && startAt === thePlugin) {
                add = true;
            }
            if (add && thePlugin && isFunction(thePlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */])) {
                // Only add plugins that are processors
                var newProxy = createTelemetryPluginProxy(thePlugin, config, core);
                if (!firstProxy) {
                    firstProxy = newProxy;
                }
                if (lastProxy_1) {
                    // Set this new proxy as the next for the previous one
                    lastProxy_1._setNext(newProxy);
                }
                lastProxy_1 = newProxy;
            }
        });
    }
    if (startAt && !firstProxy) {
        // Special case where the "startAt" was not in the original list of plugins
        return createTelemetryProxyChain([startAt], config, core);
    }
    return firstProxy;
}
/**
 * Create the processing telemetry proxy instance, the proxy is used to abstract the current plugin to allow monitoring and
 * execution plugins while passing around the dynamic execution state (IProcessTelemetryContext), the proxy instance no longer
 * contains any execution state and can be reused between requests (this was not the case for 2.7.2 and earlier with the
 * TelemetryPluginChain class).
 * @param plugin - The plugin instance to proxy
 * @param config - The default execution context to use when no telemetry context is passed to processTelemetry(), this
 * should be for legacy plugins only. Currently, only used for passing the current core instance and to provide better error
 * reporting (hasRun) when errors occur.
 * @returns
 */
export function createTelemetryPluginProxy(plugin, config, core) {
    var nextProxy = null;
    var hasProcessTelemetry = isFunction(plugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */]);
    var hasSetNext = isFunction(plugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */]);
    var chainId;
    if (plugin) {
        chainId = plugin[_DYN_IDENTIFIER /* @min:%2eidentifier */] + "-" + plugin[STR_PRIORITY /* @min:%2epriority */] + "-" + _chainId++;
    }
    else {
        chainId = "Unknown-0-" + _chainId++;
    }
    var proxyChain = {
        getPlugin: function () {
            return plugin;
        },
        getNext: function () {
            return nextProxy;
        },
        processTelemetry: _processTelemetry,
        unload: _unloadPlugin,
        update: _updatePlugin,
        _id: chainId,
        _setNext: function (nextPlugin) {
            nextProxy = nextPlugin;
        }
    };
    function _getTelCtx() {
        var itemCtx;
        // Looks like a plugin didn't pass the (optional) context, so create a new one
        if (plugin && isFunction(plugin[strGetTelCtx])) {
            // This plugin extends from the BaseTelemetryPlugin so lets use it
            itemCtx = plugin[strGetTelCtx]();
        }
        if (!itemCtx) {
            // Create a temporary one
            itemCtx = createProcessTelemetryContext(proxyChain, config, core);
        }
        return itemCtx;
    }
    function _processChain(itemCtx, processPluginFn, name, details, isAsync) {
        var hasRun = false;
        var identifier = plugin ? plugin[_DYN_IDENTIFIER /* @min:%2eidentifier */] : strTelemetryPluginChain;
        var hasRunContext = itemCtx[strHasRunFlags];
        if (!hasRunContext) {
            // Assign and populate
            hasRunContext = itemCtx[strHasRunFlags] = {};
        }
        // Ensure that we keep the context in sync
        itemCtx.setNext(nextProxy);
        if (plugin) {
            doPerf(itemCtx[STR_CORE /* @min:%2ecore */](), function () { return identifier + ":" + name; }, function () {
                // Mark this component as having run
                hasRunContext[chainId] = true;
                try {
                    // Set a flag on the next plugin so we know if it was attempted to be executed
                    var nextId = nextProxy ? nextProxy._id : STR_EMPTY;
                    if (nextId) {
                        hasRunContext[nextId] = false;
                    }
                    hasRun = processPluginFn(itemCtx);
                }
                catch (error) {
                    var hasNextRun = nextProxy ? hasRunContext[nextProxy._id] : true;
                    if (hasNextRun) {
                        // The next plugin after us has already run so set this one as complete
                        hasRun = true;
                    }
                    if (!nextProxy || !hasNextRun) {
                        // Either we have no next plugin or the current one did not attempt to call the next plugin
                        // Which means the current one is the root of the failure so log/report this failure
                        _throwInternal(itemCtx[_DYN_DIAG_LOG /* @min:%2ediagLog */](), 1 /* eLoggingSeverity.CRITICAL */, 73 /* _eInternalMessageId.PluginException */, "Plugin [" + identifier + "] failed during " + name + " - " + dumpObj(error) + ", run flags: " + dumpObj(hasRunContext));
                    }
                }
            }, details, isAsync);
        }
        return hasRun;
    }
    function _processTelemetry(env, itemCtx) {
        itemCtx = itemCtx || _getTelCtx();
        function _callProcessTelemetry(itemCtx) {
            if (!plugin || !hasProcessTelemetry) {
                return false;
            }
            var pluginState = _getPluginState(plugin);
            if (pluginState[_DYN_TEARDOWN /* @min:%2eteardown */] || pluginState[STR_DISABLED]) {
                return false;
            }
            // Ensure that we keep the context in sync (for processNext()), just in case a plugin
            // doesn't calls processTelemetry() instead of itemContext.processNext() or some
            // other form of error occurred
            if (hasSetNext) {
                // Backward compatibility setting the next plugin on the instance
                plugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */](nextProxy);
            }
            plugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */](env, itemCtx);
            // Process Telemetry is expected to call itemCtx.processNext() or nextPlugin.processTelemetry()
            return true;
        }
        if (!_processChain(itemCtx, _callProcessTelemetry, "processTelemetry", function () { return ({ item: env }); }, !(env.sync))) {
            // The underlying plugin is either not defined, not enabled or does not have a processTelemetry implementation
            // so we still want the next plugin to be executed.
            itemCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](env);
        }
    }
    function _unloadPlugin(unloadCtx, unloadState) {
        function _callTeardown() {
            // Setting default of hasRun as false so the proxyProcessFn() is called as teardown() doesn't have to exist or call unloadNext().
            var hasRun = false;
            if (plugin) {
                var pluginState = _getPluginState(plugin);
                var pluginCore = plugin[STR_CORE] || pluginState[STR_CORE /* @min:%2ecore */];
                // Only teardown the plugin if it was initialized by the current core (i.e. It's not a shared plugin)
                if (plugin && (!pluginCore || pluginCore === unloadCtx.core()) && !pluginState[_DYN_TEARDOWN /* @min:%2eteardown */]) {
                    // Handle plugins that don't extend from the BaseTelemetryPlugin
                    pluginState[STR_CORE /* @min:%2ecore */] = null;
                    pluginState[_DYN_TEARDOWN /* @min:%2eteardown */] = true;
                    pluginState[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */] = false;
                    if (plugin[_DYN_TEARDOWN /* @min:%2eteardown */] && plugin[_DYN_TEARDOWN /* @min:%2eteardown */](unloadCtx, unloadState) === true) {
                        // plugin told us that it was going to (or has) call unloadCtx.processNext()
                        hasRun = true;
                    }
                }
            }
            return hasRun;
        }
        if (!_processChain(unloadCtx, _callTeardown, "unload", function () { }, unloadState[_DYN_IS_ASYNC /* @min:%2eisAsync */])) {
            // Only called if we hasRun was not true
            unloadCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](unloadState);
        }
    }
    function _updatePlugin(updateCtx, updateState) {
        function _callUpdate() {
            // Setting default of hasRun as false so the proxyProcessFn() is called as teardown() doesn't have to exist or call unloadNext().
            var hasRun = false;
            if (plugin) {
                var pluginState = _getPluginState(plugin);
                var pluginCore = plugin[STR_CORE] || pluginState[STR_CORE /* @min:%2ecore */];
                // Only update the plugin if it was initialized by the current core (i.e. It's not a shared plugin)
                if (plugin && (!pluginCore || pluginCore === updateCtx.core()) && !pluginState[_DYN_TEARDOWN /* @min:%2eteardown */]) {
                    if (plugin[_DYN_UPDATE /* @min:%2eupdate */] && plugin[_DYN_UPDATE /* @min:%2eupdate */](updateCtx, updateState) === true) {
                        // plugin told us that it was going to (or has) call unloadCtx.processNext()
                        hasRun = true;
                    }
                }
            }
            return hasRun;
        }
        if (!_processChain(updateCtx, _callUpdate, "update", function () { }, false)) {
            // Only called if we hasRun was not true
            updateCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](updateState);
        }
    }
    return objFreeze(proxyChain);
}
/**
 * This class will be removed!
 * @deprecated use createProcessTelemetryContext() instead
 */
var ProcessTelemetryContext = /** @class */ (function () {
    /**
     * Creates a new Telemetry Item context with the current config, core and plugin execution chain
     * @param plugins - The plugin instances that will be executed
     * @param config - The current config
     * @param core - The current core instance
     */
    function ProcessTelemetryContext(pluginChain, config, core, startAt) {
        var _self = this;
        var context = createProcessTelemetryContext(pluginChain, config, core, startAt);
        // Proxy all functions of the context to this object
        proxyFunctions(_self, context, objKeys(context));
    }
    return ProcessTelemetryContext;
}());
export { ProcessTelemetryContext };
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