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# Copyright (C) 2016 The Qt Company Ltd.
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source("../../shared/qtcreator.py")

inputDialog = "{type='QDialog' unnamed='1' visible='1' windowTitle='Extract Function Refactoring'}"

def revertMainCpp():
    invokeMenuItem('File', 'Revert "main.cpp" to Saved')
    waitFor("object.exists(':Revert to Saved_QMessageBox')", 1000)
    clickButton(waitForObject(":Revert to Saved.Proceed_QPushButton"))

def constructExpectedCode(original, codeLines, funcSuffix):
    withBraces = 'WithBraces' in funcSuffix
    myFuncCall = "    myFunc%s(dummy);" % funcSuffix
    if not withBraces:
        myFuncCall += "\n    "
    tmp = original.splitlines()
    tmp.insert(tmp.index("{") + 1, "\n".join(["    %s" % codeLines[1], myFuncCall]))
    insertHere = tmp.index("using namespace std;")
    if insertHere == -1:
        test.fatal("Template code seems to have changed.")
        return original
    generatedFunc = "\nvoid myFunc%s(int dummy)\n{" % funcSuffix
    for line in codeLines[2:]:
        if line.endswith(";") and not line.startswith("while"):
            generatedFunc += "\n        %s" % line
        else:
            generatedFunc += "\n    %s" % line
    if withBraces:
        generatedFunc += "\n        \n    }"
    # QTCREATORBUG-12118: last line has 4 additional blanks
    if JIRA.isBugStillOpen(12118):
        generatedFunc += "    "
    else:
        test.warning("Remove unnecessary code - QTCREATORBUG-12118 is closed.")
    generatedFunc += "\n}"
    tmp.insert(insertHere + 1, generatedFunc)
    return "\n".join(tmp) + "\n"

def main():
    if platform.system() == 'Darwin':
        home = '<Ctrl+Left>'
    else:
        home = '<Home>'

    code = {"if" : ["", "int dummy = 0;", "if (dummy < 10)", "++dummy;"],
            "if with braces" : ["", "int dummy = 0;", "if (dummy < 10) {", "++dummy;"],
            "if else" : ["", "int dummy = 0;", "if (dummy < 10)", "++dummy;", "else", "--dummy;"],
            "if else with braces" : ["", "int dummy = 0;", "if (dummy < 10) {",
                                     "++dummy;", "} else {", "--dummy;"],
            "while" : ["", "int dummy = 0;", "while (dummy < 10)", "++dummy;"],
            "while with braces" : ["", "int dummy = 0;", "while (dummy < 10) {", "++dummy;"],
            "do while" : ["", "int dummy = 0;", "do", "++dummy;", "while (dummy < 10);"]
            }
    for useClang in [False, True]:
        if not startCreator(useClang):
            continue
        projectName = createNewNonQtProject()
        checkCodeModelSettings(useClang)
        openDocument("%s.Sources.main\\.cpp" % projectName)
        editor = getEditorForFileSuffix("main.cpp")
        if not editor:
            test.fatal("Failed to get an editor - leaving test.")
            invokeMenuItem("File", "Exit")
            return

        originalContent = str(editor.plainText)
        for case, codeLines in code.items():
            funcSuffix = case.title().replace(" ", "")
            test.log("Testing: Extract Function for '%s'" % case)
            if not placeCursorToLine(editor, "{"):
                continue
            typeLines(editor, codeLines)
            if not placeCursorToLine(editor, codeLines[2]):
                revertMainCpp()
                continue
            type(editor, home)
            markText(editor, "Right", 2)
            snooze(1) # avoid timing issue with the parser
            invokeContextMenuItem(editor, 'Refactor', 'Extract Function')
            funcEdit = waitForObject("{buddy={text='Function name' type='QLabel' unnamed='1' "
                                     "visible='1' window=%s} type='Utils::FancyLineEdit' "
                                     "unnamed='1' visible='1'}" % inputDialog)
            replaceEditorContent(funcEdit, "myFunc%s" % funcSuffix)
            clickButton(waitForObject("{text='OK' type='QPushButton' unnamed='1' visible='1' window=%s}"
                                      % inputDialog))
            waitFor("'void myFunc%s' in str(editor.plainText)" % funcSuffix, 2500)
            # verify the change
            modifiedCode = str(editor.plainText)
            expectedCode = constructExpectedCode(originalContent, codeLines, funcSuffix)
            test.compare(modifiedCode, expectedCode, "Verifying whether code matches expected.")
            # reverting to initial state of main.cpp
            revertMainCpp()
        snooze(1)   # "Close All" might be disabled
        invokeMenuItem('File', 'Close All')
        invokeMenuItem('File', 'Exit')