/*global describe, it */
"use strict";

var fs = require("fs");
var assert = require("assert");
var postcss = require("postcss");
var urlrewrite = require("../index.js");

var fixture = function (name) {
    return fs.readFileSync("test/fixtures/" + name + ".css", "utf8").trim();
};

var compareFixtures = function (name, options) {
    var actual = postcss(urlrewrite(options)).process(fixture(name)).css.trim();
    var expected = fixture(name + ".out");
    return assert.equal(actual, expected);
};

describe("postcss-urlrewrite", function () {
    describe("paths in absolute rules", function () {
        it("should be replaced", function () {
            var config = {
                rules: [
                    { from: "http://www.google.com/", to: "http://yandex.ru/" },
                    { from: /^\//, to: "http://mysite.com/" },
                ],
            };

            compareFixtures("absolute", config);
        });
    });

    describe("different file types", function () {
        it("should return must not affect replacement", function () {
            var config = {
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("backgrounds", config);
        });
    });

    describe("data-uris", function () {
        it("should be replaceable", function () {
            var config = {
                rules: function (uri) {
                    uri.href("image.png");
                },
            };

            compareFixtures("datauri", config);
        });
    });

    describe('only "content" and "cursor" properties', function () {
        it("should be updated", function () {
            var config = {
                properties: ["content", "cursor"],
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("filter", config);
        });
    });

    describe("fonts src with ie hacks", function () {
        it("should be replaced without errors", function () {
            var config = {
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("fonts", config);
        });
    });

    describe('only "content" and "cursor" properties', function () {
        it("should be updated", function () {
            var config = {
                imports: true,
                properties: false,
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("imports", config);
        });
    });

    describe("multiple url() in property value", function () {
        it("should be replaced without errors", function () {
            var config = {
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("multiple", config);
        });
    });

    describe("all properties from css 2.1 spec", function () {
        it("should be replaceable", function () {
            var config = {
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("properties", config);
        });
    });

    describe("if multiple rules match value", function () {
        it("only first should trigger replace", function () {
            var config = {
                rules: [
                    { from: /local\/test/, to: "$&1" },
                    { from: /global\/test/, to: "$&2" },
                    { from: /test/, to: "$&3" },
                ],
            };

            compareFixtures("rules", config);
        });
    });

    describe('if properties value is "true"', function () {
        it("it should not return error", function () {
            var config = {
                properties: true,
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("properties-default", config);
        });
    });

    describe("if blank url()", function () {
        it("it should not return error", function () {
            var config = {
                rules: [{ from: "local", to: "global" }],
            };

            compareFixtures("blank-url", config);
        });
    });
});