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

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

    if gender == 2 then
        return maleVersion
        end
    if gender == 3 then
        return femaleVersion
    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 = GetQuestInfo(quest.titleMale, quest.titleFemale),
                    objective = GetQuestInfo(quest.objectiveMale, quest.objectiveFemale),
                    description = GetQuestInfo(quest.descriptionMale, quest.descriptionFemale),
                    progress = GetQuestInfo(quest.progressMale, quest.progressFemale),
                    completion = GetQuestInfo(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 SetQuestDetails(questId, headerText, objectiveText, descriptionHeader, descriptionText, parentFrame, yOffset)
    objectiveText = replacePlaceholders(objectiveText);
    descriptionText = replacePlaceholders(descriptionText);

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

    QuestTranslationFramePrimaryHeader:SetText(headerText:upper())
    QuestTranslationFramePrimaryText:SetText(objectiveText)
    QuestTranslationFrameSecondaryHeader:SetText(descriptionHeader:upper())
    QuestTranslationFrameSecondaryText:SetText(descriptionText)

    textTopMargin = -QuestTranslationFramePrimaryHeader:GetHeight() - 15
    descriptionHeaderTopMargin = textTopMargin - QuestTranslationFramePrimaryText:GetHeight() - 10
    descriptionTextTopMargin = descriptionHeaderTopMargin - QuestTranslationFrameSecondaryHeader: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, 20)
    addPadding(descriptionText, 5)

    QuestTranslationFramePrimaryHeader:SetPoint("TOPLEFT", 10, -10)
    QuestTranslationFramePrimaryText:SetPoint("TOPLEFT", 10, textTopMargin)
    QuestTranslationFrameSecondaryHeader:SetPoint("TOPLEFT", 10, descriptionHeaderTopMargin)
    QuestTranslationFrameSecondaryText:SetPoint("TOPLEFT", 10, descriptionTextTopMargin)
    QuestTranslationFrame:SetPoint("TOPLEFT", parentFrame, "TOPRIGHT", -15, yOffset)

    QuestTranslationFrame:SetParent(parentFrame)
    QuestTranslationFrame:SetHeight(
            QuestTranslationFramePrimaryHeader:GetHeight() +
                    QuestTranslationFramePrimaryText:GetHeight() +
                    QuestTranslationFrameSecondaryHeader:GetHeight() +
                    QuestTranslationFrameSecondaryText:GetHeight() +
                    heightPadding
    )
end

local function UpdateQuestTranslationFrame()
    local selectedQuestIndex, questId, questData

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

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

            if questData then
                QuestTranslationFrame:Show()

                SetQuestDetails(
                    questId,
                    questData.title,
                    questData.objective,
                    addonDataTable.translations["description"],
                    questData.description,
                    QuestLogFrame,
                    -80
                )
            else
                QuestTranslationFrame:Hide()
            end
        end
    end

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

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

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

local function SetQuestHoverScripts(frame, children)
    local frameName = frame:GetName()

    if frameName ~= "QuestLogListScrollFrame" and not string.find(frameName, "QuestLogItem") and not string.find(frameName, "QuestProgressItem") then
        frame:SetScript("OnEnter", function()
            UpdateQuestTranslationFrame()
            questFrameBeingHovered = true
        end)

        frame:SetScript("OnLeave", function()
            QuestTranslationFrame:Hide()
            questFrameBeingHovered = false
        end)

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

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

SetQuestHoverScripts(QuestLogFrame, true)
SetQuestHoverScripts(QuestFrame, false)

SetQuestHoverScripts(QuestProgressScrollFrame, true)
SetQuestHoverScripts(QuestDetailScrollFrame, true)
SetQuestHoverScripts(QuestRewardScrollFrame, true)

SetQuestHoverScripts(QuestFrameCompleteButton, true)
SetQuestHoverScripts(QuestFrameCompleteQuestButton, true)
SetQuestHoverScripts(QuestFrameGoodbyeButton, true)
SetQuestHoverScripts(QuestFrameCancelButton, true)