(function (e) {
    e.fn.easyView = function (t, n) {
        var r = e(this.selector);
        if (typeof r.data("easyView") == "undefined") {
            if (typeof t == "string") {
                t = {}
            }
            var i = {
                selector: r,
                currentRatio: 100,
                normalContrast: true,
                defaults: {
                    container: "body",
                    tags: ["h1", "h2", "h3", "h4", "h5", "h6", "div", "p", "a", "span", "strong", "em", "ul", "ol", "li", "section", "blockquote"],
                    step: 10,
                    bootstrap: true,
                    defaultMarkup: '<a href="#decrease" class="decrease-text">Decrease font size</a><a href="#normal" class="reset-text">Normal font size</a><a href="#increase" class="increase-text">Increase font size</a><a href="#contrast" class="contrast-text">Change contrast</a>',
                    increaseSelector: ".increase-text",
                    decreaseSelector: ".decrease-text",
                    normalSelector: ".reset-text",
                    contrastSelector: ".contrast-text"
                },
                options: {},
                affectedTags: new Array,
                mergeOptions: function (t) {
                    e.extend(this.options, this.defaults, t)
                },
                storeDefaults: function () {
                    e(this.affectedTags.join(",")).each(function () {
                        var t = e(this);
                        var n = t.css("font-size");
                        if (n.indexOf("%") > -1) {
                            t.data("originalSize", parseInt(n.replace("%", "")));
                            t.data("originalUnit", "%")
                        } else {
                            t.data("originalSize", parseInt(n.replace(n.substr(-2), "")));
                            t.data("originalUnit", n.substr(-2))
                        }
                        t.data("originalBackground", t.css("background-color"));
                        t.data("originalColor", t.css("color"))
                    });
                    e(this.options.container).data("originalBackground", e(this.options.container).css("background-color"));
                    e(this.options.container).data("originalColor", e(this.options.container).css("color"))
                },
                createDefaultMarkup: function () {
                    if (r.html() == "") {
                        r.html(this.options.defaultMarkup)
                    }
                },
                setActions: function () {
                    var e = this;
                    r.find(this.options.decreaseSelector).click(function (t) {
                        t.preventDefault();
                        e.decreaseFont()
                    });
                    r.find(this.options.normalSelector).click(function (t) {
                        t.preventDefault();
                        e.resetFont()
                    });
                    r.find(this.options.increaseSelector).click(function (t) {
                        t.preventDefault();
                        e.increaseFont()
                    });
                    r.find(this.options.contrastSelector).click(function (t) {
                        t.preventDefault();
                        e.changeContrast()
                    })
                },
                fetchTags: function () {
                    var t = this.affectedTags;
                    var n = this.options;
                    e.each(this.options.tags, function (e, r) {
                        t.push(n.container + " " + r)
                    })
                },
                decreaseFont: function () {
                    if (this.currentRatio - this.options.step >= 10) {
                        this.currentRatio = this.currentRatio - this.options.step
                    }
                    this.changeFontSize()
                },
                resetFont: function () {
                    this.currentRatio = 100;
                    this.changeFontSize()
                },
                increaseFont: function () {
                    this.currentRatio = this.currentRatio + this.options.step;
                    this.changeFontSize()
                },
                changeFontSize: function (t) {
                    if (typeof t != "undefined" && parseInt(t) > 10) {
                        this.currentRatio = t
                    }
                    var n = this.currentRatio;
                    e(this.affectedTags.join(",")).each(function () {
                        var t = e(this);
                        t.css("font-size", t.data("originalSize") * (n / 100) + t.data("originalUnit"))
                    })
                },
                changeContrast: function () {
                    e(this.affectedTags).each(function () {
                        var t = e(this);
                        t.css("background-color", !this.normalContrast ? t.data("originalBackground") : "#000");
                        t.css("color", !this.normalContrast ? t.data("originalColor") : "transparent")
                    });
                    e(this.options.container).css("background-color", !this.normalContrast ? e(this.options.container).data("originalBackground") : "#000");
                    e(this.options.container).css("color", !this.normalContrast ? e(this.options.container).data("originalColor") : "#fff");
                    this.normalContrast = !this.normalContrast
                },
                startPlugin: function (e) {
                    this.mergeOptions(e);
                    this.fetchTags();
                    this.storeDefaults();
                    this.createDefaultMarkup();
                    this.setActions()
                },
                executeFunction: function (e, t) {
                    switch (e) {
                        case"decrease":
                            this.decreaseFont();
                            break;
                        case"reset":
                            this.resetFont();
                            break;
                        case"increase":
                            this.increaseFont();
                            break;
                        case"contrast":
                            if (typeof t != "undefined") {
                                if (t) {
                                    this.normalContrast = true
                                } else {
                                    this.normalContrast = false
                                }
                            }
                            this.changeContrast();
                            break;
                        case"setRatio":
                            this.changeFontSize(ratio);
                            break;
                        default:
                            alert("Called function does not exist!");
                            break
                    }
                },
                destroy: function () {
                    this.resetFont();
                    this.normalContrast = false;
                    this.changeContrast();
                    r.removeData("easyView")
                }
            };
            i.startPlugin(t);
            r.data("easyView", i)
        } else {
            var i = r.data("easyView");
            if (typeof t == "object") {
                i.destroy();
                i.startPlugin(t)
            } else if (typeof t == "string") {
                i.executeFunction(t, n)
            } else {
                alert("Invalid params to start")
            }
        }
    }
})(jQuery)