import { __read, __spread, __values } from "tslib";
import { isClassProvider, isFactoryProvider, isNormalToken, isTokenProvider, isValueProvider } from "./providers";
import { isProvider } from "./providers/provider";
import { isConstructorToken, isTokenDescriptor, isTransformDescriptor } from "./providers/injection-token";
import Registry from "./registry";
import Lifecycle from "./types/lifecycle";
import ResolutionContext from "./resolution-context";
import { formatErrorCtor } from "./error-helpers";
import { DelayedConstructor } from "./lazy-helpers";
import Interceptors from "./interceptors";
export var typeInfo = new Map();
var InternalDependencyContainer = (function () {
    function InternalDependencyContainer(parent) {
        this.parent = parent;
        this._registry = new Registry();
        this.interceptors = new Interceptors();
    }
    InternalDependencyContainer.prototype.register = function (token, providerOrConstructor, options) {
        if (options === void 0) { options = { lifecycle: Lifecycle.Transient }; }
        var provider;
        if (!isProvider(providerOrConstructor)) {
            provider = { useClass: providerOrConstructor };
        }
        else {
            provider = providerOrConstructor;
        }
        if (isTokenProvider(provider)) {
            var path = [token];
            var tokenProvider = provider;
            while (tokenProvider != null) {
                var currentToken = tokenProvider.useToken;
                if (path.includes(currentToken)) {
                    throw new Error("Token registration cycle detected! " + __spread(path, [currentToken]).join(" -> "));
                }
                path.push(currentToken);
                var registration = this._registry.get(currentToken);
                if (registration && isTokenProvider(registration.provider)) {
                    tokenProvider = registration.provider;
                }
                else {
                    tokenProvider = null;
                }
            }
        }
        if (options.lifecycle === Lifecycle.Singleton ||
            options.lifecycle == Lifecycle.ContainerScoped ||
            options.lifecycle == Lifecycle.ResolutionScoped) {
            if (isValueProvider(provider) || isFactoryProvider(provider)) {
                throw new Error("Cannot use lifecycle \"" + Lifecycle[options.lifecycle] + "\" with ValueProviders or FactoryProviders");
            }
        }
        this._registry.set(token, { provider: provider, options: options });
        return this;
    };
    InternalDependencyContainer.prototype.registerType = function (from, to) {
        if (isNormalToken(to)) {
            return this.register(from, {
                useToken: to
            });
        }
        return this.register(from, {
            useClass: to
        });
    };
    InternalDependencyContainer.prototype.registerInstance = function (token, instance) {
        return this.register(token, {
            useValue: instance
        });
    };
    InternalDependencyContainer.prototype.registerSingleton = function (from, to) {
        if (isNormalToken(from)) {
            if (isNormalToken(to)) {
                return this.register(from, {
                    useToken: to
                }, { lifecycle: Lifecycle.Singleton });
            }
            else if (to) {
                return this.register(from, {
                    useClass: to
                }, { lifecycle: Lifecycle.Singleton });
            }
            throw new Error('Cannot register a type name as a singleton without a "to" token');
        }
        var useClass = from;
        if (to && !isNormalToken(to)) {
            useClass = to;
        }
        return this.register(from, {
            useClass: useClass
        }, { lifecycle: Lifecycle.Singleton });
    };
    InternalDependencyContainer.prototype.resolve = function (token, context) {
        if (context === void 0) { context = new ResolutionContext(); }
        var registration = this.getRegistration(token);
        if (!registration && isNormalToken(token)) {
            throw new Error("Attempted to resolve unregistered dependency token: \"" + token.toString() + "\"");
        }
        this.executePreResolutionInterceptor(token, "Single");
        if (registration) {
            var result = this.resolveRegistration(registration, context);
            this.executePostResolutionInterceptor(token, result, "Single");
            return result;
        }
        if (isConstructorToken(token)) {
            var result = this.construct(token, context);
            this.executePostResolutionInterceptor(token, result, "Single");
            return result;
        }
        throw new Error("Attempted to construct an undefined constructor. Could mean a circular dependency problem. Try using `delay` function.");
    };
    InternalDependencyContainer.prototype.executePreResolutionInterceptor = function (token, resolutionType) {
        var e_1, _a;
        if (this.interceptors.preResolution.has(token)) {
            var remainingInterceptors = [];
            try {
                for (var _b = __values(this.interceptors.preResolution.getAll(token)), _c = _b.next(); !_c.done; _c = _b.next()) {
                    var interceptor = _c.value;
                    if (interceptor.options.frequency != "Once") {
                        remainingInterceptors.push(interceptor);
                    }
                    interceptor.callback(token, resolutionType);
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
                }
                finally { if (e_1) throw e_1.error; }
            }
            this.interceptors.preResolution.setAll(token, remainingInterceptors);
        }
    };
    InternalDependencyContainer.prototype.executePostResolutionInterceptor = function (token, result, resolutionType) {
        var e_2, _a;
        if (this.interceptors.postResolution.has(token)) {
            var remainingInterceptors = [];
            try {
                for (var _b = __values(this.interceptors.postResolution.getAll(token)), _c = _b.next(); !_c.done; _c = _b.next()) {
                    var interceptor = _c.value;
                    if (interceptor.options.frequency != "Once") {
                        remainingInterceptors.push(interceptor);
                    }
                    interceptor.callback(token, result, resolutionType);
                }
            }
            catch (e_2_1) { e_2 = { error: e_2_1 }; }
            finally {
                try {
                    if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
                }
                finally { if (e_2) throw e_2.error; }
            }
            this.interceptors.postResolution.setAll(token, remainingInterceptors);
        }
    };
    InternalDependencyContainer.prototype.resolveRegistration = function (registration, context) {
        if (registration.options.lifecycle === Lifecycle.ResolutionScoped &&
            context.scopedResolutions.has(registration)) {
            return context.scopedResolutions.get(registration);
        }
        var isSingleton = registration.options.lifecycle === Lifecycle.Singleton;
        var isContainerScoped = registration.options.lifecycle === Lifecycle.ContainerScoped;
        var returnInstance = isSingleton || isContainerScoped;
        var resolved;
        if (isValueProvider(registration.provider)) {
            resolved = registration.provider.useValue;
        }
        else if (isTokenProvider(registration.provider)) {
            resolved = returnInstance
                ? registration.instance ||
                    (registration.instance = this.resolve(registration.provider.useToken, context))
                : this.resolve(registration.provider.useToken, context);
        }
        else if (isClassProvider(registration.provider)) {
            resolved = returnInstance
                ? registration.instance ||
                    (registration.instance = this.construct(registration.provider.useClass, context))
                : this.construct(registration.provider.useClass, context);
        }
        else if (isFactoryProvider(registration.provider)) {
            resolved = registration.provider.useFactory(this);
        }
        else {
            resolved = this.construct(registration.provider, context);
        }
        if (registration.options.lifecycle === Lifecycle.ResolutionScoped) {
            context.scopedResolutions.set(registration, resolved);
        }
        return resolved;
    };
    InternalDependencyContainer.prototype.resolveAll = function (token, context) {
        var _this = this;
        if (context === void 0) { context = new ResolutionContext(); }
        var registrations = this.getAllRegistrations(token);
        if (!registrations && isNormalToken(token)) {
            throw new Error("Attempted to resolve unregistered dependency token: \"" + token.toString() + "\"");
        }
        this.executePreResolutionInterceptor(token, "All");
        if (registrations) {
            var result_1 = registrations.map(function (item) {
                return _this.resolveRegistration(item, context);
            });
            this.executePostResolutionInterceptor(token, result_1, "All");
            return result_1;
        }
        var result = [this.construct(token, context)];
        this.executePostResolutionInterceptor(token, result, "All");
        return result;
    };
    InternalDependencyContainer.prototype.isRegistered = function (token, recursive) {
        if (recursive === void 0) { recursive = false; }
        return (this._registry.has(token) ||
            (recursive &&
                (this.parent || false) &&
                this.parent.isRegistered(token, true)));
    };
    InternalDependencyContainer.prototype.reset = function () {
        this._registry.clear();
        this.interceptors.preResolution.clear();
        this.interceptors.postResolution.clear();
    };
    InternalDependencyContainer.prototype.clearInstances = function () {
        var e_3, _a;
        try {
            for (var _b = __values(this._registry.entries()), _c = _b.next(); !_c.done; _c = _b.next()) {
                var _d = __read(_c.value, 2), token = _d[0], registrations = _d[1];
                this._registry.setAll(token, registrations
                    .filter(function (registration) { return !isValueProvider(registration.provider); })
                    .map(function (registration) {
                    registration.instance = undefined;
                    return registration;
                }));
            }
        }
        catch (e_3_1) { e_3 = { error: e_3_1 }; }
        finally {
            try {
                if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
            }
            finally { if (e_3) throw e_3.error; }
        }
    };
    InternalDependencyContainer.prototype.createChildContainer = function () {
        var e_4, _a;
        var childContainer = new InternalDependencyContainer(this);
        try {
            for (var _b = __values(this._registry.entries()), _c = _b.next(); !_c.done; _c = _b.next()) {
                var _d = __read(_c.value, 2), token = _d[0], registrations = _d[1];
                if (registrations.some(function (_a) {
                    var options = _a.options;
                    return options.lifecycle === Lifecycle.ContainerScoped;
                })) {
                    childContainer._registry.setAll(token, registrations.map(function (registration) {
                        if (registration.options.lifecycle === Lifecycle.ContainerScoped) {
                            return {
                                provider: registration.provider,
                                options: registration.options
                            };
                        }
                        return registration;
                    }));
                }
            }
        }
        catch (e_4_1) { e_4 = { error: e_4_1 }; }
        finally {
            try {
                if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
            }
            finally { if (e_4) throw e_4.error; }
        }
        return childContainer;
    };
    InternalDependencyContainer.prototype.beforeResolution = function (token, callback, options) {
        if (options === void 0) { options = { frequency: "Always" }; }
        this.interceptors.preResolution.set(token, {
            callback: callback,
            options: options
        });
    };
    InternalDependencyContainer.prototype.afterResolution = function (token, callback, options) {
        if (options === void 0) { options = { frequency: "Always" }; }
        this.interceptors.postResolution.set(token, {
            callback: callback,
            options: options
        });
    };
    InternalDependencyContainer.prototype.getRegistration = function (token) {
        if (this.isRegistered(token)) {
            return this._registry.get(token);
        }
        if (this.parent) {
            return this.parent.getRegistration(token);
        }
        return null;
    };
    InternalDependencyContainer.prototype.getAllRegistrations = function (token) {
        if (this.isRegistered(token)) {
            return this._registry.getAll(token);
        }
        if (this.parent) {
            return this.parent.getAllRegistrations(token);
        }
        return null;
    };
    InternalDependencyContainer.prototype.construct = function (ctor, context) {
        var _this = this;
        if (ctor instanceof DelayedConstructor) {
            return ctor.createProxy(function (target) {
                return _this.resolve(target, context);
            });
        }
        var paramInfo = typeInfo.get(ctor);
        if (!paramInfo || paramInfo.length === 0) {
            if (ctor.length === 0) {
                return new ctor();
            }
            else {
                throw new Error("TypeInfo not known for \"" + ctor.name + "\"");
            }
        }
        var params = paramInfo.map(this.resolveParams(context, ctor));
        return new (ctor.bind.apply(ctor, __spread([void 0], params)))();
    };
    InternalDependencyContainer.prototype.resolveParams = function (context, ctor) {
        var _this = this;
        return function (param, idx) {
            var _a, _b, _c;
            try {
                if (isTokenDescriptor(param)) {
                    if (isTransformDescriptor(param)) {
                        return param.multiple
                            ? (_a = _this.resolve(param.transform)).transform.apply(_a, __spread([_this.resolveAll(param.token)], param.transformArgs)) : (_b = _this.resolve(param.transform)).transform.apply(_b, __spread([_this.resolve(param.token, context)], param.transformArgs));
                    }
                    else {
                        return param.multiple
                            ? _this.resolveAll(param.token)
                            : _this.resolve(param.token, context);
                    }
                }
                else if (isTransformDescriptor(param)) {
                    return (_c = _this.resolve(param.transform, context)).transform.apply(_c, __spread([_this.resolve(param.token, context)], param.transformArgs));
                }
                return _this.resolve(param, context);
            }
            catch (e) {
                throw new Error(formatErrorCtor(ctor, idx, e));
            }
        };
    };
    return InternalDependencyContainer;
}());
export var instance = new InternalDependencyContainer();
export default instance;