(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports", "vscode-nls", "../languageFacts/facts", "../parser/cssNodes", "../utils/arrays", "./lintRules", "./lintUtil"], factory);
    }
})(function (require, exports) {
    /*---------------------------------------------------------------------------------------------
     *  Copyright (c) Microsoft Corporation. All rights reserved.
     *  Licensed under the MIT License. See License.txt in the project root for license information.
     *--------------------------------------------------------------------------------------------*/
    'use strict';
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.LintVisitor = void 0;
    var nls = require("vscode-nls");
    var languageFacts = require("../languageFacts/facts");
    var nodes = require("../parser/cssNodes");
    var arrays_1 = require("../utils/arrays");
    var lintRules_1 = require("./lintRules");
    var lintUtil_1 = require("./lintUtil");
    var localize = nls.loadMessageBundle();
    var NodesByRootMap = /** @class */ (function () {
        function NodesByRootMap() {
            this.data = {};
        }
        NodesByRootMap.prototype.add = function (root, name, node) {
            var entry = this.data[root];
            if (!entry) {
                entry = { nodes: [], names: [] };
                this.data[root] = entry;
            }
            entry.names.push(name);
            if (node) {
                entry.nodes.push(node);
            }
        };
        return NodesByRootMap;
    }());
    var LintVisitor = /** @class */ (function () {
        function LintVisitor(document, settings, cssDataManager) {
            var _this = this;
            this.cssDataManager = cssDataManager;
            this.warnings = [];
            this.settings = settings;
            this.documentText = document.getText();
            this.keyframes = new NodesByRootMap();
            this.validProperties = {};
            var properties = settings.getSetting(lintRules_1.Settings.ValidProperties);
            if (Array.isArray(properties)) {
                properties.forEach(function (p) {
                    if (typeof p === 'string') {
                        var name = p.trim().toLowerCase();
                        if (name.length) {
                            _this.validProperties[name] = true;
                        }
                    }
                });
            }
        }
        LintVisitor.entries = function (node, document, settings, cssDataManager, entryFilter) {
            var visitor = new LintVisitor(document, settings, cssDataManager);
            node.acceptVisitor(visitor);
            visitor.completeValidations();
            return visitor.getEntries(entryFilter);
        };
        LintVisitor.prototype.isValidPropertyDeclaration = function (element) {
            var propertyName = element.fullPropertyName;
            return this.validProperties[propertyName];
        };
        LintVisitor.prototype.fetch = function (input, s) {
            var elements = [];
            for (var _i = 0, input_1 = input; _i < input_1.length; _i++) {
                var curr = input_1[_i];
                if (curr.fullPropertyName === s) {
                    elements.push(curr);
                }
            }
            return elements;
        };
        LintVisitor.prototype.fetchWithValue = function (input, s, v) {
            var elements = [];
            for (var _i = 0, input_2 = input; _i < input_2.length; _i++) {
                var inputElement = input_2[_i];
                if (inputElement.fullPropertyName === s) {
                    var expression = inputElement.node.getValue();
                    if (expression && this.findValueInExpression(expression, v)) {
                        elements.push(inputElement);
                    }
                }
            }
            return elements;
        };
        LintVisitor.prototype.findValueInExpression = function (expression, v) {
            var found = false;
            expression.accept(function (node) {
                if (node.type === nodes.NodeType.Identifier && node.matches(v)) {
                    found = true;
                }
                return !found;
            });
            return found;
        };
        LintVisitor.prototype.getEntries = function (filter) {
            if (filter === void 0) { filter = (nodes.Level.Warning | nodes.Level.Error); }
            return this.warnings.filter(function (entry) {
                return (entry.getLevel() & filter) !== 0;
            });
        };
        LintVisitor.prototype.addEntry = function (node, rule, details) {
            var entry = new nodes.Marker(node, rule, this.settings.getRule(rule), details);
            this.warnings.push(entry);
        };
        LintVisitor.prototype.getMissingNames = function (expected, actual) {
            var expectedClone = expected.slice(0); // clone
            for (var i = 0; i < actual.length; i++) {
                var k = expectedClone.indexOf(actual[i]);
                if (k !== -1) {
                    expectedClone[k] = null;
                }
            }
            var result = null;
            for (var i = 0; i < expectedClone.length; i++) {
                var curr = expectedClone[i];
                if (curr) {
                    if (result === null) {
                        result = localize('namelist.single', "'{0}'", curr);
                    }
                    else {
                        result = localize('namelist.concatenated', "{0}, '{1}'", result, curr);
                    }
                }
            }
            return result;
        };
        LintVisitor.prototype.visitNode = function (node) {
            switch (node.type) {
                case nodes.NodeType.UnknownAtRule:
                    return this.visitUnknownAtRule(node);
                case nodes.NodeType.Keyframe:
                    return this.visitKeyframe(node);
                case nodes.NodeType.FontFace:
                    return this.visitFontFace(node);
                case nodes.NodeType.Ruleset:
                    return this.visitRuleSet(node);
                case nodes.NodeType.SimpleSelector:
                    return this.visitSimpleSelector(node);
                case nodes.NodeType.Function:
                    return this.visitFunction(node);
                case nodes.NodeType.NumericValue:
                    return this.visitNumericValue(node);
                case nodes.NodeType.Import:
                    return this.visitImport(node);
                case nodes.NodeType.HexColorValue:
                    return this.visitHexColorValue(node);
                case nodes.NodeType.Prio:
                    return this.visitPrio(node);
                case nodes.NodeType.IdentifierSelector:
                    return this.visitIdentifierSelector(node);
            }
            return true;
        };
        LintVisitor.prototype.completeValidations = function () {
            this.validateKeyframes();
        };
        LintVisitor.prototype.visitUnknownAtRule = function (node) {
            var atRuleName = node.getChild(0);
            if (!atRuleName) {
                return false;
            }
            var atDirective = this.cssDataManager.getAtDirective(atRuleName.getText());
            if (atDirective) {
                return false;
            }
            this.addEntry(atRuleName, lintRules_1.Rules.UnknownAtRules, "Unknown at rule ".concat(atRuleName.getText()));
            return true;
        };
        LintVisitor.prototype.visitKeyframe = function (node) {
            var keyword = node.getKeyword();
            if (!keyword) {
                return false;
            }
            var text = keyword.getText();
            this.keyframes.add(node.getName(), text, (text !== '@keyframes') ? keyword : null);
            return true;
        };
        LintVisitor.prototype.validateKeyframes = function () {
            // @keyframe and it's vendor specific alternatives
            // @keyframe should be included
            var expected = ['@-webkit-keyframes', '@-moz-keyframes', '@-o-keyframes'];
            for (var name in this.keyframes.data) {
                var actual = this.keyframes.data[name].names;
                var needsStandard = (actual.indexOf('@keyframes') === -1);
                if (!needsStandard && actual.length === 1) {
                    continue; // only the non-vendor specific keyword is used, that's fine, no warning
                }
                var missingVendorSpecific = this.getMissingNames(expected, actual);
                if (missingVendorSpecific || needsStandard) {
                    for (var _i = 0, _a = this.keyframes.data[name].nodes; _i < _a.length; _i++) {
                        var node = _a[_i];
                        if (needsStandard) {
                            var message = localize('keyframes.standardrule.missing', "Always define standard rule '@keyframes' when defining keyframes.");
                            this.addEntry(node, lintRules_1.Rules.IncludeStandardPropertyWhenUsingVendorPrefix, message);
                        }
                        if (missingVendorSpecific) {
                            var message = localize('keyframes.vendorspecific.missing', "Always include all vendor specific rules: Missing: {0}", missingVendorSpecific);
                            this.addEntry(node, lintRules_1.Rules.AllVendorPrefixes, message);
                        }
                    }
                }
            }
            return true;
        };
        LintVisitor.prototype.visitSimpleSelector = function (node) {
            /////////////////////////////////////////////////////////////
            //	Lint - The universal selector (*) is known to be slow.
            /////////////////////////////////////////////////////////////
            var firstChar = this.documentText.charAt(node.offset);
            if (node.length === 1 && firstChar === '*') {
                this.addEntry(node, lintRules_1.Rules.UniversalSelector);
            }
            return true;
        };
        LintVisitor.prototype.visitIdentifierSelector = function (node) {
            /////////////////////////////////////////////////////////////
            //	Lint - Avoid id selectors
            /////////////////////////////////////////////////////////////
            this.addEntry(node, lintRules_1.Rules.AvoidIdSelector);
            return true;
        };
        LintVisitor.prototype.visitImport = function (node) {
            /////////////////////////////////////////////////////////////
            //	Lint - Import statements shouldn't be used, because they aren't offering parallel downloads.
            /////////////////////////////////////////////////////////////
            this.addEntry(node, lintRules_1.Rules.ImportStatemement);
            return true;
        };
        LintVisitor.prototype.visitRuleSet = function (node) {
            /////////////////////////////////////////////////////////////
            //	Lint - Don't use empty rulesets.
            /////////////////////////////////////////////////////////////
            var declarations = node.getDeclarations();
            if (!declarations) {
                // syntax error
                return false;
            }
            if (!declarations.hasChildren()) {
                this.addEntry(node.getSelectors(), lintRules_1.Rules.EmptyRuleSet);
            }
            var propertyTable = [];
            for (var _i = 0, _a = declarations.getChildren(); _i < _a.length; _i++) {
                var element = _a[_i];
                if (element instanceof nodes.Declaration) {
                    propertyTable.push(new lintUtil_1.Element(element));
                }
            }
            /////////////////////////////////////////////////////////////
            // the rule warns when it finds:
            // width being used with border, border-left, border-right, padding, padding-left, or padding-right
            // height being used with border, border-top, border-bottom, padding, padding-top, or padding-bottom
            // No error when box-sizing property is specified, as it assumes the user knows what he's doing.
            // see https://github.com/CSSLint/csslint/wiki/Beware-of-box-model-size
            /////////////////////////////////////////////////////////////
            var boxModel = (0, lintUtil_1.default)(propertyTable);
            if (boxModel.width) {
                var properties = [];
                if (boxModel.right.value) {
                    properties = (0, arrays_1.union)(properties, boxModel.right.properties);
                }
                if (boxModel.left.value) {
                    properties = (0, arrays_1.union)(properties, boxModel.left.properties);
                }
                if (properties.length !== 0) {
                    for (var _b = 0, properties_1 = properties; _b < properties_1.length; _b++) {
                        var item = properties_1[_b];
                        this.addEntry(item.node, lintRules_1.Rules.BewareOfBoxModelSize);
                    }
                    this.addEntry(boxModel.width.node, lintRules_1.Rules.BewareOfBoxModelSize);
                }
            }
            if (boxModel.height) {
                var properties = [];
                if (boxModel.top.value) {
                    properties = (0, arrays_1.union)(properties, boxModel.top.properties);
                }
                if (boxModel.bottom.value) {
                    properties = (0, arrays_1.union)(properties, boxModel.bottom.properties);
                }
                if (properties.length !== 0) {
                    for (var _c = 0, properties_2 = properties; _c < properties_2.length; _c++) {
                        var item = properties_2[_c];
                        this.addEntry(item.node, lintRules_1.Rules.BewareOfBoxModelSize);
                    }
                    this.addEntry(boxModel.height.node, lintRules_1.Rules.BewareOfBoxModelSize);
                }
            }
            /////////////////////////////////////////////////////////////
            //	Properties ignored due to display
            /////////////////////////////////////////////////////////////
            // With 'display: inline-block', 'float' has no effect
            var displayElems = this.fetchWithValue(propertyTable, 'display', 'inline-block');
            if (displayElems.length > 0) {
                var elem = this.fetch(propertyTable, 'float');
                for (var index = 0; index < elem.length; index++) {
                    var node_1 = elem[index].node;
                    var value = node_1.getValue();
                    if (value && !value.matches('none')) {
                        this.addEntry(node_1, lintRules_1.Rules.PropertyIgnoredDueToDisplay, localize('rule.propertyIgnoredDueToDisplayInlineBlock', "inline-block is ignored due to the float. If 'float' has a value other than 'none', the box is floated and 'display' is treated as 'block'"));
                    }
                }
            }
            // With 'display: block', 'vertical-align' has no effect
            displayElems = this.fetchWithValue(propertyTable, 'display', 'block');
            if (displayElems.length > 0) {
                var elem = this.fetch(propertyTable, 'vertical-align');
                for (var index = 0; index < elem.length; index++) {
                    this.addEntry(elem[index].node, lintRules_1.Rules.PropertyIgnoredDueToDisplay, localize('rule.propertyIgnoredDueToDisplayBlock', "Property is ignored due to the display. With 'display: block', vertical-align should not be used."));
                }
            }
            /////////////////////////////////////////////////////////////
            //	Avoid 'float'
            /////////////////////////////////////////////////////////////
            var elements = this.fetch(propertyTable, 'float');
            for (var index = 0; index < elements.length; index++) {
                var element = elements[index];
                if (!this.isValidPropertyDeclaration(element)) {
                    this.addEntry(element.node, lintRules_1.Rules.AvoidFloat);
                }
            }
            /////////////////////////////////////////////////////////////
            //	Don't use duplicate declarations.
            /////////////////////////////////////////////////////////////
            for (var i = 0; i < propertyTable.length; i++) {
                var element = propertyTable[i];
                if (element.fullPropertyName !== 'background' && !this.validProperties[element.fullPropertyName]) {
                    var value = element.node.getValue();
                    if (value && this.documentText.charAt(value.offset) !== '-') {
                        var elements_1 = this.fetch(propertyTable, element.fullPropertyName);
                        if (elements_1.length > 1) {
                            for (var k = 0; k < elements_1.length; k++) {
                                var value_1 = elements_1[k].node.getValue();
                                if (value_1 && this.documentText.charAt(value_1.offset) !== '-' && elements_1[k] !== element) {
                                    this.addEntry(element.node, lintRules_1.Rules.DuplicateDeclarations);
                                }
                            }
                        }
                    }
                }
            }
            /////////////////////////////////////////////////////////////
            //	Unknown propery & When using a vendor-prefixed gradient, make sure to use them all.
            /////////////////////////////////////////////////////////////
            var isExportBlock = node.getSelectors().matches(":export");
            if (!isExportBlock) {
                var propertiesBySuffix = new NodesByRootMap();
                var containsUnknowns = false;
                for (var _d = 0, propertyTable_1 = propertyTable; _d < propertyTable_1.length; _d++) {
                    var element = propertyTable_1[_d];
                    var decl = element.node;
                    if (this.isCSSDeclaration(decl)) {
                        var name = element.fullPropertyName;
                        var firstChar = name.charAt(0);
                        if (firstChar === '-') {
                            if (name.charAt(1) !== '-') { // avoid css variables
                                if (!this.cssDataManager.isKnownProperty(name) && !this.validProperties[name]) {
                                    this.addEntry(decl.getProperty(), lintRules_1.Rules.UnknownVendorSpecificProperty);
                                }
                                var nonPrefixedName = decl.getNonPrefixedPropertyName();
                                propertiesBySuffix.add(nonPrefixedName, name, decl.getProperty());
                            }
                        }
                        else {
                            var fullName = name;
                            if (firstChar === '*' || firstChar === '_') {
                                this.addEntry(decl.getProperty(), lintRules_1.Rules.IEStarHack);
                                name = name.substr(1);
                            }
                            // _property and *property might be contributed via custom data
                            if (!this.cssDataManager.isKnownProperty(fullName) && !this.cssDataManager.isKnownProperty(name)) {
                                if (!this.validProperties[name]) {
                                    this.addEntry(decl.getProperty(), lintRules_1.Rules.UnknownProperty, localize('property.unknownproperty.detailed', "Unknown property: '{0}'", decl.getFullPropertyName()));
                                }
                            }
                            propertiesBySuffix.add(name, name, null); // don't pass the node as we don't show errors on the standard
                        }
                    }
                    else {
                        containsUnknowns = true;
                    }
                }
                if (!containsUnknowns) { // don't perform this test if there are
                    for (var suffix in propertiesBySuffix.data) {
                        var entry = propertiesBySuffix.data[suffix];
                        var actual = entry.names;
                        var needsStandard = this.cssDataManager.isStandardProperty(suffix) && (actual.indexOf(suffix) === -1);
                        if (!needsStandard && actual.length === 1) {
                            continue; // only the non-vendor specific rule is used, that's fine, no warning
                        }
                        var expected = [];
                        for (var i = 0, len = LintVisitor.prefixes.length; i < len; i++) {
                            var prefix = LintVisitor.prefixes[i];
                            if (this.cssDataManager.isStandardProperty(prefix + suffix)) {
                                expected.push(prefix + suffix);
                            }
                        }
                        var missingVendorSpecific = this.getMissingNames(expected, actual);
                        if (missingVendorSpecific || needsStandard) {
                            for (var _e = 0, _f = entry.nodes; _e < _f.length; _e++) {
                                var node_2 = _f[_e];
                                if (needsStandard) {
                                    var message = localize('property.standard.missing', "Also define the standard property '{0}' for compatibility", suffix);
                                    this.addEntry(node_2, lintRules_1.Rules.IncludeStandardPropertyWhenUsingVendorPrefix, message);
                                }
                                if (missingVendorSpecific) {
                                    var message = localize('property.vendorspecific.missing', "Always include all vendor specific properties: Missing: {0}", missingVendorSpecific);
                                    this.addEntry(node_2, lintRules_1.Rules.AllVendorPrefixes, message);
                                }
                            }
                        }
                    }
                }
            }
            return true;
        };
        LintVisitor.prototype.visitPrio = function (node) {
            /////////////////////////////////////////////////////////////
            //	Don't use !important
            /////////////////////////////////////////////////////////////
            this.addEntry(node, lintRules_1.Rules.AvoidImportant);
            return true;
        };
        LintVisitor.prototype.visitNumericValue = function (node) {
            /////////////////////////////////////////////////////////////
            //	0 has no following unit
            /////////////////////////////////////////////////////////////
            var funcDecl = node.findParent(nodes.NodeType.Function);
            if (funcDecl && funcDecl.getName() === 'calc') {
                return true;
            }
            var decl = node.findParent(nodes.NodeType.Declaration);
            if (decl) {
                var declValue = decl.getValue();
                if (declValue) {
                    var value = node.getValue();
                    if (!value.unit || languageFacts.units.length.indexOf(value.unit.toLowerCase()) === -1) {
                        return true;
                    }
                    if (parseFloat(value.value) === 0.0 && !!value.unit && !this.validProperties[decl.getFullPropertyName()]) {
                        this.addEntry(node, lintRules_1.Rules.ZeroWithUnit);
                    }
                }
            }
            return true;
        };
        LintVisitor.prototype.visitFontFace = function (node) {
            var declarations = node.getDeclarations();
            if (!declarations) {
                // syntax error
                return false;
            }
            var definesSrc = false, definesFontFamily = false;
            var containsUnknowns = false;
            for (var _i = 0, _a = declarations.getChildren(); _i < _a.length; _i++) {
                var node_3 = _a[_i];
                if (this.isCSSDeclaration(node_3)) {
                    var name = node_3.getProperty().getName().toLowerCase();
                    if (name === 'src') {
                        definesSrc = true;
                    }
                    if (name === 'font-family') {
                        definesFontFamily = true;
                    }
                }
                else {
                    containsUnknowns = true;
                }
            }
            if (!containsUnknowns && (!definesSrc || !definesFontFamily)) {
                this.addEntry(node, lintRules_1.Rules.RequiredPropertiesForFontFace);
            }
            return true;
        };
        LintVisitor.prototype.isCSSDeclaration = function (node) {
            if (node instanceof nodes.Declaration) {
                if (!node.getValue()) {
                    return false;
                }
                var property = node.getProperty();
                if (!property) {
                    return false;
                }
                var identifier = property.getIdentifier();
                if (!identifier || identifier.containsInterpolation()) {
                    return false;
                }
                return true;
            }
            return false;
        };
        LintVisitor.prototype.visitHexColorValue = function (node) {
            // Rule: #eeff0011 or #eeff00 or #ef01 or #ef0
            var length = node.length;
            if (length !== 9 && length !== 7 && length !== 5 && length !== 4) {
                this.addEntry(node, lintRules_1.Rules.HexColorLength);
            }
            return false;
        };
        LintVisitor.prototype.visitFunction = function (node) {
            var fnName = node.getName().toLowerCase();
            var expectedAttrCount = -1;
            var actualAttrCount = 0;
            switch (fnName) {
                case 'rgb(':
                case 'hsl(':
                    expectedAttrCount = 3;
                    break;
                case 'rgba(':
                case 'hsla(':
                    expectedAttrCount = 4;
                    break;
            }
            if (expectedAttrCount !== -1) {
                node.getArguments().accept(function (n) {
                    if (n instanceof nodes.BinaryExpression) {
                        actualAttrCount += 1;
                        return false;
                    }
                    return true;
                });
                if (actualAttrCount !== expectedAttrCount) {
                    this.addEntry(node, lintRules_1.Rules.ArgsInColorFunction);
                }
            }
            return true;
        };
        LintVisitor.prefixes = [
            '-ms-', '-moz-', '-o-', '-webkit-', // Quite common
            //		'-xv-', '-atsc-', '-wap-', '-khtml-', 'mso-', 'prince-', '-ah-', '-hp-', '-ro-', '-rim-', '-tc-' // Quite un-common
        ];
        return LintVisitor;
    }());
    exports.LintVisitor = LintVisitor;
});
