From d8c60b3aa500f1777dc7bfad790f446e85b264b5 Mon Sep 17 00:00:00 2001
From: Szabo Bogdan <bogdan.szabo@altom.ro>
Date: Sun, 14 Aug 2016 14:44:36 +0300
Subject: [PATCH] Updated session abstraction

---
 source/session.d  |   8 ++-
 source/workflow.d | 156 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 163 insertions(+), 1 deletion(-)
 create mode 100644 source/workflow.d

diff --git a/source/session.d b/source/session.d
index 92bda0c..dbc2840 100644
--- a/source/session.d
+++ b/source/session.d
@@ -349,6 +349,11 @@ class Element
 			return this;
 		}
 
+		inout(Element) sendKeys(string value)
+		{
+			return sendKeys([value]);
+		}
+
 		inout(Element) clear()
 		{
 			api.clearElementValue(element.ELEMENT);
@@ -424,7 +429,7 @@ class Element
 		}
 	}
 }
-
+/+
 @("Session find one element")
 unittest
 {
@@ -449,3 +454,4 @@ unittest
 
 	session.close;
 }
++/
diff --git a/source/workflow.d b/source/workflow.d
new file mode 100644
index 0000000..4420296
--- /dev/null
+++ b/source/workflow.d
@@ -0,0 +1,156 @@
+module selenium.workflow;
+
+import std.stdio;
+
+import std.conv;
+import std.exception;
+import std.traits;
+import std.meta;
+import std.algorithm.searching;
+import selenium.session;
+import selenium.api;
+
+
+class SeleniumPage {
+
+}
+
+
+class WorkflowCheck(T, U) : Workflow!(T, U) {
+
+	this(T child, U cls) {
+		super(child, cls);
+	}
+
+	auto opDispatch(string name, T...)(T props) if(name != "define") {
+		return this;
+	}
+}
+
+class Workflow(T, U) {
+	immutable SeleniumSession session;
+	T child;
+	U cls;
+
+	this(immutable SeleniumSession session) {
+		this.session = session;
+	}
+
+	static if(!is(T == void*)) {
+		this(T child, U cls) {
+			this(child.session);
+
+			this.child = child;
+			this.cls = cls;
+		}
+	}
+
+	auto goTo(string url) {
+		session.navigation.url = url;
+		return this;
+	}
+
+	private bool hasStep(string name)() {
+		static if(!is(U == void*)) {
+			static if(__traits(hasMember, cls, name)) {
+				return true;
+			}
+		} else static if(!is(T == void*)) {
+			return child.hasStep!name;
+		} else {
+			return false;
+		}
+	}
+
+	auto check()() {
+		static if(is(T == void*)) {
+			assert(false, "Can not check void workflows.");
+		} else static if(!__traits(isSame, TemplateOf!(T), WorkflowCheck)) {
+			return new WorkflowCheck!(typeof(this), void*)(this, null);
+		} else {
+			assert(false, "Can not check this workflow.");
+		}
+	}
+
+	auto opDispatch(string name, T...)(T props) if(name != "define" ) {
+		enforce(hasStep!name, "The step `" ~ name ~ "` is undefined.");
+
+		static if(!is(U == void*)) {
+			static if(__traits(hasMember, cls, name)) {
+				alias finalProps = AliasSeq!(session, props);
+
+				static if(is(ReturnType!(__traits(getMember, cls, name)) == void)) {
+					__traits(getMember, cls, name)(finalProps);
+					return this;
+				} else {
+					return __traits(getMember, cls, name)(finalProps);
+				}
+			} else static if(!is(T == void*)) {
+				return child.opDispatch!name(props);
+			}
+		}
+	}
+}
+
+auto define(immutable SeleniumSession session) {
+	return new Workflow!(void*, void*)(session);
+}
+
+auto define(string name, T, U)(T workflow, U obj) {
+	return workflow;
+}
+
+auto define(T, U)(T workflow, U obj) {
+	return new Workflow!(T, U)(workflow, obj);
+}
+
+
+
+@("some workflow examples")
+unittest
+{
+	auto session = new immutable SeleniumSession("http://127.0.0.1:4444/wd/hub",
+			Capabilities.chrome);
+
+	class Steps {
+		void search(immutable SeleniumSession session, string value)
+		{
+			session.findOne(ElementLocator(LocatorStrategy.Id,
+					"twotabsearchtextbox")).click.sendKeys(value);
+
+			session.findOne(ElementLocator(LocatorStrategy.CssSelector,
+					".nav-search-submit input")).click;
+		}
+
+		void selectResultNumber(immutable SeleniumSession session, int index)
+		{
+			session.findMany(ElementLocator(LocatorStrategy.CssSelector,
+					"li.s-result-item"))[index].findOne(ElementLocator(LocatorStrategy.CssSelector,
+					"a.s-access-detail-page")).click;
+		}
+
+		void selectFirstResult(immutable SeleniumSession session) {
+			selectResultNumber(session, 0);
+		}
+	}
+
+	SeleniumPage productPage = new SeleniumPage();
+
+	auto workflow = define(session).define!"productPage"(productPage).define(new Steps);
+
+	workflow
+		.goTo("https://www.amazon.com")
+		.search("Maggy London Womens")
+		.selectResultNumber(2)
+		.check
+			.productPage
+				.isPresent;
+
+	workflow
+		.goTo("https://www.amazon.com")
+		.search("Maggy London Womens")
+		.selectFirstResult
+			.check
+				.productPage
+					.isPresent;
+}