"use strict";
/**
 * @license
 * Copyright 2018 Palantir Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var tsutils_1 = require("tsutils");
var ts = require("typescript");
var Lint = require("../index");
var Rule = /** @class */ (function (_super) {
    tslib_1.__extends(Rule, _super);
    function Rule() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    /* tslint:enable:object-literal-sort-keys */
    Rule.FAILURE_STRING = function (name, message) {
        return name + " is deprecated" + (message === "" ? "." : ": " + message.trim());
    };
    Rule.prototype.applyWithProgram = function (sourceFile, program) {
        return this.applyWithFunction(sourceFile, walk, undefined, program.getTypeChecker());
    };
    /* tslint:disable:object-literal-sort-keys */
    Rule.metadata = {
        ruleName: "deprecation",
        description: "Warns when deprecated APIs are used.",
        descriptionDetails: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["Any usage of an identifier\n            with the @deprecated JSDoc annotation will trigger a warning.\n            See http://usejsdoc.org/tags-deprecated.html"], ["Any usage of an identifier\n            with the @deprecated JSDoc annotation will trigger a warning.\n            See http://usejsdoc.org/tags-deprecated.html"]))),
        rationale: "Deprecated APIs should be avoided, and usage updated.",
        optionsDescription: "",
        options: null,
        optionExamples: [true],
        type: "maintainability",
        typescriptOnly: false,
        requiresTypeInfo: true,
    };
    return Rule;
}(Lint.Rules.TypedRule));
exports.Rule = Rule;
function walk(ctx, tc) {
    return ts.forEachChild(ctx.sourceFile, function cb(node) {
        if (tsutils_1.isIdentifier(node)) {
            if (!isDeclaration(node)) {
                var deprecation = getDeprecation(node, tc);
                if (deprecation !== undefined) {
                    ctx.addFailureAtNode(node, Rule.FAILURE_STRING(node.text, deprecation));
                }
            }
        }
        else {
            switch (node.kind) {
                case ts.SyntaxKind.ImportDeclaration:
                case ts.SyntaxKind.ImportEqualsDeclaration:
                case ts.SyntaxKind.ExportDeclaration:
                case ts.SyntaxKind.ExportAssignment:
                    return;
            }
            return ts.forEachChild(node, cb);
        }
    });
}
function isDeclaration(identifier) {
    var parent = identifier.parent;
    switch (parent.kind) {
        case ts.SyntaxKind.ClassDeclaration:
        case ts.SyntaxKind.ClassExpression:
        case ts.SyntaxKind.InterfaceDeclaration:
        case ts.SyntaxKind.TypeParameter:
        case ts.SyntaxKind.FunctionExpression:
        case ts.SyntaxKind.FunctionDeclaration:
        case ts.SyntaxKind.LabeledStatement:
        case ts.SyntaxKind.JsxAttribute:
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.MethodSignature:
        case ts.SyntaxKind.PropertySignature:
        case ts.SyntaxKind.TypeAliasDeclaration:
        case ts.SyntaxKind.GetAccessor:
        case ts.SyntaxKind.SetAccessor:
        case ts.SyntaxKind.EnumDeclaration:
        case ts.SyntaxKind.ModuleDeclaration:
            return true;
        case ts.SyntaxKind.VariableDeclaration:
        case ts.SyntaxKind.Parameter:
        case ts.SyntaxKind.PropertyDeclaration:
        case ts.SyntaxKind.EnumMember:
        case ts.SyntaxKind.ImportEqualsDeclaration:
            return parent.name === identifier;
        case ts.SyntaxKind.PropertyAssignment:
            return (parent.name === identifier &&
                !tsutils_1.isReassignmentTarget(identifier.parent.parent));
        case ts.SyntaxKind.BindingElement:
            // return true for `b` in `const {a: b} = obj"`
            return (parent.name === identifier &&
                parent.propertyName !== undefined);
        default:
            return false;
    }
}
function getCallExpresion(node) {
    var parent = node.parent;
    if (tsutils_1.isPropertyAccessExpression(parent) && parent.name === node) {
        node = parent;
        parent = node.parent;
    }
    return tsutils_1.isTaggedTemplateExpression(parent) ||
        ((tsutils_1.isCallExpression(parent) || tsutils_1.isNewExpression(parent)) && parent.expression === node)
        ? parent
        : undefined;
}
function getDeprecation(node, tc) {
    var callExpression = getCallExpresion(node);
    if (callExpression !== undefined) {
        var result = getSignatureDeprecation(tc.getResolvedSignature(callExpression));
        if (result !== undefined) {
            return result;
        }
    }
    var symbol;
    var parent = node.parent;
    if (parent.kind === ts.SyntaxKind.BindingElement) {
        symbol = tc.getTypeAtLocation(parent.parent).getProperty(node.text);
    }
    else if ((tsutils_1.isPropertyAssignment(parent) && parent.name === node) ||
        (tsutils_1.isShorthandPropertyAssignment(parent) &&
            parent.name === node &&
            tsutils_1.isReassignmentTarget(node))) {
        symbol = tc.getPropertySymbolOfDestructuringAssignment(node);
    }
    else {
        symbol = tc.getSymbolAtLocation(node);
    }
    if (symbol !== undefined && tsutils_1.isSymbolFlagSet(symbol, ts.SymbolFlags.Alias)) {
        symbol = tc.getAliasedSymbol(symbol);
    }
    if (symbol === undefined ||
        // if this is a CallExpression and the declaration is a function or method,
        // stop here to avoid collecting JsDoc of all overload signatures
        (callExpression !== undefined && isFunctionOrMethod(symbol.declarations))) {
        return undefined;
    }
    return getSymbolDeprecation(symbol);
}
function findDeprecationTag(tags) {
    for (var _i = 0, tags_1 = tags; _i < tags_1.length; _i++) {
        var tag = tags_1[_i];
        if (tag.name === "deprecated") {
            return tag.text === undefined ? "" : tag.text;
        }
    }
    return undefined;
}
function getSymbolDeprecation(symbol) {
    if (symbol.getJsDocTags !== undefined) {
        return findDeprecationTag(symbol.getJsDocTags());
    }
    // for compatibility with typescript@<2.3.0
    return getDeprecationFromDeclarations(symbol.declarations);
}
function getSignatureDeprecation(signature) {
    if (signature === undefined) {
        return undefined;
    }
    if (signature.getJsDocTags !== undefined) {
        return findDeprecationTag(signature.getJsDocTags());
    }
    // for compatibility with typescript@<2.3.0
    return signature.declaration === undefined
        ? undefined
        : getDeprecationFromDeclaration(signature.declaration);
}
function getDeprecationFromDeclarations(declarations) {
    if (declarations === undefined) {
        return undefined;
    }
    var declaration;
    for (var _i = 0, declarations_1 = declarations; _i < declarations_1.length; _i++) {
        declaration = declarations_1[_i];
        if (tsutils_1.isBindingElement(declaration)) {
            declaration = tsutils_1.getDeclarationOfBindingElement(declaration);
        }
        if (tsutils_1.isVariableDeclaration(declaration)) {
            declaration = declaration.parent;
        }
        if (tsutils_1.isVariableDeclarationList(declaration)) {
            declaration = declaration.parent;
        }
        var result = getDeprecationFromDeclaration(declaration);
        if (result !== undefined) {
            return result;
        }
    }
    return undefined;
}
function getDeprecationFromDeclaration(declaration) {
    for (var _i = 0, _a = tsutils_1.getJsDoc(declaration); _i < _a.length; _i++) {
        var comment = _a[_i];
        if (comment.tags === undefined) {
            continue;
        }
        for (var _b = 0, _c = comment.tags; _b < _c.length; _b++) {
            var tag = _c[_b];
            if (tag.tagName.text === "deprecated") {
                return tag.comment === undefined ? "" : tag.comment;
            }
        }
    }
    return undefined;
}
function isFunctionOrMethod(declarations) {
    if (declarations === undefined || declarations.length === 0) {
        return false;
    }
    switch (declarations[0].kind) {
        case ts.SyntaxKind.MethodDeclaration:
        case ts.SyntaxKind.FunctionDeclaration:
        case ts.SyntaxKind.FunctionExpression:
        case ts.SyntaxKind.MethodSignature:
            return true;
        default:
            return false;
    }
}
var templateObject_1;