local lastQuestFrameEvent = nil
local addonName, addonDataTable = ...

local function ResolveFemaleVersion(maleVersion, femaleVersion)
    local gender = UnitSex("player")

    if gender == 2 then
        return maleVersion
    end
    if gender == 3 then
        if (femaleVersion == "") then
            return maleVersion
        else
            return femaleVersion
        end
    end
end

local function GetDataByKey(dataType, dataId)
    if addonDataTable[dataType] then
        if dataType == "questData" then
            if addonDataTable[dataType][dataId] then
                local quest = addonDataTable[dataType][dataId];
                local standardQuest = {
                    title = ResolveFemaleVersion(quest.titleMale, quest.titleFemale),
                    objective = ResolveFemaleVersion(quest.objectiveMale, quest.objectiveFemale),
                    description = ResolveFemaleVersion(quest.descriptionMale, quest.descriptionFemale),
                    progress = ResolveFemaleVersion(quest.progressMale, quest.progressFemale),
                    completion = ResolveFemaleVersion(quest.completionMale, quest.completionFemale),
                }
                return standardQuest
            end

        elseif addonDataTable[dataType][dataId] then
            return addonDataTable[dataType][dataId]
        end
    end

    return nil
end

local function replacePlaceholders(text)
    if text == nil then
        return text
    end

    local playerName = UnitName("player")
    local _, playerClass = UnitClass("player")
    local _, playerRace = UnitRace("player")

    local class = GetDataByKey("classData", playerClass);
    local race = GetDataByKey("raceData", playerRace);

    local formatted = text;
    formatted = string.gsub(formatted, '<name>', playerName);

    formatted = string.gsub(formatted, '<cF0>', class.f0);
    formatted = string.gsub(formatted, '<cF1>', class.f1);
    formatted = string.gsub(formatted, '<cF2>', class.f2);
    formatted = string.gsub(formatted, '<cF3>', class.f3);
    formatted = string.gsub(formatted, '<cF4>', class.f4);
    formatted = string.gsub(formatted, '<cF5>', class.f5);

    formatted = string.gsub(formatted, '<cM0>', class.m0);
    formatted = string.gsub(formatted, '<cM1>', class.m1);
    formatted = string.gsub(formatted, '<cM2>', class.m2);
    formatted = string.gsub(formatted, '<cM3>', class.m3);
    formatted = string.gsub(formatted, '<cM4>', class.m4);

    formatted = string.gsub(formatted, '<rF0>', race.f0);
    formatted = string.gsub(formatted, '<rF1>', race.f1);
    formatted = string.gsub(formatted, '<rF2>', race.f2);
    formatted = string.gsub(formatted, '<rF3>', race.f3);
    formatted = string.gsub(formatted, '<rF4>', race.f4);
    formatted = string.gsub(formatted, '<rF5>', race.f5);

    formatted = string.gsub(formatted, '<rM0>', race.m0);
    formatted = string.gsub(formatted, '<rM1>', race.m1);
    formatted = string.gsub(formatted, '<rM2>', race.m2);
    formatted = string.gsub(formatted, '<rM3>', race.m3);
    formatted = string.gsub(formatted, '<rM4>', race.m4);

    return formatted
end

local function ShowTranslatedQuestFrame(questId, headerText, objectiveText, descriptionHeader, descriptionText, parentFrame, yOffset)
    objectiveText = replacePlaceholders(objectiveText);
    descriptionText = replacePlaceholders(descriptionText);

    if CzechQuestsOptions["DEBUG_MODE"] then
        headerText = headerText .. " (" .. questId .. ")"
    end

    TranslationInfoFramePrimaryHeader:SetText(headerText:upper())
    TranslationInfoFramePrimaryText:SetText(objectiveText)
    TranslationInfoFrameSecondaryHeader:SetText(descriptionHeader:upper())
    TranslationInfoFrameSecondaryText:SetText(descriptionText)

    textTopMargin = -TranslationInfoFramePrimaryHeader:GetHeight() - 15
    descriptionHeaderTopMargin = textTopMargin - TranslationInfoFramePrimaryText:GetHeight() - 20
    descriptionTextTopMargin = descriptionHeaderTopMargin - TranslationInfoFrameSecondaryHeader:GetHeight() - 5

    local heightPadding = 10

    local addPadding = function(text, value)
        if text ~= "" then
            heightPadding = heightPadding + value
        end
    end

    addPadding(headerText, 10)
    addPadding(objectiveText, 5)
    addPadding(descriptionHeader, 25)
    addPadding(descriptionText, 5)

    TranslationInfoFramePrimaryHeader:SetPoint("TOPLEFT", 10, -10)
    TranslationInfoFramePrimaryText:SetPoint("TOPLEFT", 10, textTopMargin)
    TranslationInfoFrameSecondaryHeader:SetPoint("TOPLEFT", 10, descriptionHeaderTopMargin)
    TranslationInfoFrameSecondaryText:SetPoint("TOPLEFT", 10, descriptionTextTopMargin)
    TranslationInfoFrame:SetPoint("TOPLEFT", parentFrame, "TOPRIGHT", -15, yOffset)

    TranslationInfoFrame:SetParent(parentFrame)
    TranslationInfoFrame:SetHeight(
            TranslationInfoFramePrimaryHeader:GetHeight() +
                    TranslationInfoFramePrimaryText:GetHeight() +
                    TranslationInfoFrameSecondaryHeader:GetHeight() +
                    TranslationInfoFrameSecondaryText:GetHeight() +
                    heightPadding
    )
end

local function ShowTranslatedQuestItemFrame(itemText, parentFrame, yOffset)
    itemText = replacePlaceholders(itemText);
    TranslationInfoFramePrimaryText:SetText(itemText)

    TranslationInfoFramePrimaryText:SetPoint("TOPLEFT", 10, 5)
    TranslationInfoFrame:SetPoint("TOPLEFT", parentFrame, "TOPRIGHT", -15, yOffset)

    TranslationInfoFrame:SetParent(parentFrame)
    TranslationInfoFrame:SetHeight(TranslationInfoFramePrimaryText:GetHeight() + 30)

    TranslationInfoFramePrimaryText:SetPoint("TOPLEFT", 10, -10)
    TranslationInfoFrame:SetPoint("TOPLEFT", parentFrame, "TOPRIGHT", -15, yOffset)
end

local function UpdateTranslationInfoFrame(frameEvent)
    local selectedQuestIndex, questId, questData, itemName

    if TranslationInfoFrame:IsShown() then
        TranslationInfoFrame:Hide()
    end

    if QuestLogFrame:IsShown() then
        selectedQuestIndex = GetQuestLogSelection()

        if selectedQuestIndex > 0 then
            questId = select(8, GetQuestLogTitle(selectedQuestIndex))
            questData = GetDataByKey("questData", questId)

            if questData then
                TranslationInfoFrame:Show()
                ShowTranslatedQuestFrame(
                        questId,
                        questData.title,
                        questData.objective,
                        addonDataTable.translations["description"],
                        questData.description,
                        QuestLogFrame,
                        -80
                )
            else
                TranslationInfoFrame:Hide()
            end
        end
    end

    if QuestFrame:IsShown() then
        questId = GetQuestID()

        if questId then
            questData = GetDataByKey("questData", questId)
            if questData then
                TranslationInfoFrame:Show()

                if frameEvent == "QUEST_PROGRESS" then
                    ShowTranslatedQuestFrame(
                            questId,
                            questData.title,
                            questData.progress,
                            "",
                            "",
                            QuestFrame,
                            -80
                    )
                elseif frameEvent == "QUEST_COMPLETE" then
                    ShowTranslatedQuestFrame(
                            questId,
                            questData.title,
                            questData.completion,
                            "",
                            "",
                            QuestFrame,
                            -80
                    )
                elseif frameEvent == "QUEST_DETAIL" then
                    ShowTranslatedQuestFrame(
                            questId,
                            questData.title,
                            questData.description,
                            addonDataTable.translations["objectives"],
                            questData.objective,
                            QuestFrame,
                            -80
                    )
                elseif frameEvent == "QUEST_FINISHED" then
                    TranslationInfoFrame:Hide()
                end
            else
                TranslationInfoFrame:Hide()
            end
        end
    end

    if ItemTextFrame:IsShown() then
        itemName = ItemTextGetItem();
        local itemText = GetDataByKey("questItems", itemName)

        TranslationInfoFrame:Show()
        ShowTranslatedQuestItemFrame(itemText, ItemTextFrame, -80)
    end
end

TranslationInfoFrame:SetScript("OnEvent", function(self, event, ...)
    if event == "QUEST_PROGRESS" or event == "QUEST_COMPLETE" or event == "QUEST_FINISHED" or event == "QUEST_DETAIL" then
        UpdateTranslationInfoFrame(event)
    end

        if (event == "ITEM_TEXT_READY") then
            UpdateTranslationInfoFrame(event)
        end
    end)

-- Hover is enabled only for QuestLogFrame because i do know event for change quest from list
local function SetHoverScripts(frame, children)
    local frameName = frame:GetName()

    if not string.find(frameName, "QuestLogItem") and not string.find(frameName, "QuestProgressItem") then
        frame:SetScript("OnEnter", function()
            UpdateTranslationInfoFrame()
        end)

        frame:SetScript("OnLeave", function()
            TranslationInfoFrame:Hide()
        end)

        if children then
            for i = 1, frame:GetNumChildren() do
                local child = select(i, frame:GetChildren())
                SetHoverScripts(child, true)
            end
        end
    end
end

SetHoverScripts(QuestLogFrame, false)