-- JSON encoding function
local function _jsonEncode(value)
    if type(value) == "table" then
        local is_array = true
        local max = 0
        for k, v in pairs(value) do
            if type(k) ~= "number" then
                is_array = false
            else
                if k > max then max = k end
            end
        end
        if is_array then
            local items = {}
            for i = 1, max do
                table.insert(items, _jsonEncode(value[i]))
            end
            return "[" .. table.concat(items, ",") .. "]"
        else
            local items = {}
            for k, v in pairs(value) do
                table.insert(items, _jsonEncode(k) .. ":" .. _jsonEncode(v))
            end
            return "{" .. table.concat(items, ",") .. "}"
        end
    elseif type(value) == "string" then
        return '"' .. value:gsub('"', '\\"') .. '"'
    elseif type(value) == "number" or type(value) == "boolean" then
        return tostring(value)
    else
        return "null"
    end
end

local function jsonEncode(value)
    local status, result = pcall(function() return _jsonEncode(value) end)
    if status then return result end
    return nil, result
end

-- Function to gather collection data
local function gatherCollections()
    local collections = {
        toys = {},
        pets = {},
        mounts = {},
        transmogs = {}
    }

    -- Gather toy data
    for i = 1, C_ToyBox.GetNumToys() do
        local toyID = C_ToyBox.GetToyFromIndex(i)
        local itemID, toyName, icon, isFavorite, hasFanfare, itemQuality = C_ToyBox.GetToyInfo(toyID)
        local hasToy = PlayerHasToy(itemId)
        if toyID and toyName and hasToy then
            table.insert(collections.toys, {id = toyID, name = toyName})
        end
    end

    -- Gather pet data
    local numPets, numOwned = C_PetJournal.GetNumPets()
    for i = 1, numOwned do
        local petID, speciesID, owned, customName, level, favorite, isRevoked, speciesName, icon, petType, companionID, tooltip, description, isWild, canBattle, isTradeable, isUnique, obtainable = C_PetJournal.GetPetInfoByIndex(i)
        if petID and speciesID and speciesName then
            table.insert(collections.pets, {id = speciesID, name = speciesName})
        end
    end

    -- Gather mount data

    C_MountJournal.SetDefaultFilters()
    C_MountJournal.SetCollectedFilterSetting(LE_MOUNT_JOURNAL_FILTER_COLLECTED, true)
    C_MountJournal.SetCollectedFilterSetting(LE_MOUNT_JOURNAL_FILTER_NOT_COLLECTED, false)
    C_MountJournal.SetCollectedFilterSetting(LE_MOUNT_JOURNAL_FILTER_UNUSABLE, true)

    for i = 1, C_MountJournal.GetNumDisplayedMounts() do
        local mountID = C_MountJournal.GetDisplayedMountID(i)
        local mountName = C_MountJournal.GetMountInfoByID(mountID)
        if mountID and mountName then
            table.insert(collections.mounts, {id = mountID, name = mountName})
        end
    end

    -- Gather transmog data (collected appearances)
    -- Gather transmog data (collected appearances)
    local appearanceSources = C_TransmogCollection.GetCategoryAppearances(1)
    for _, appearance in ipairs(appearanceSources) do
        local sourceID = appearance.visualID
        local categoryID, visualID, canEnchant, icon, isCollected, itemLink, transmogLink, unknown1, itemSubTypeIndex = C_TransmogCollection.GetAppearanceSourceInfo(sourceID)
        if sourceID and itemLink then
            table.insert(collections.transmogs, {id = sourceID, name = itemLink})
        else
            print("Error: Invalid sourceInfo for sourceID " .. tostring(sourceID)) -- Debug print
        end
    end


    return collections
end

-- Function to save data to a file (in-game saved variables)
local function saveCollectionsToFile()
    local collections = gatherCollections()
    local encodedData, error = jsonEncode(collections)
    if not encodedData then
        print("Error encoding data: " .. tostring(error))
        return
    end
    -- Save to SavedVariables
    _G["BronzeAppraiser_Data"] = encodedData
    print("Collection data has been saved.")
end

-- Register a slash command to export collections
SLASH_BRONZEAPPRAISER1 = "/exportcollections"
SlashCmdList["BRONZEAPPRAISER"] = function(msg)
    saveCollectionsToFile()
end

-- Register event to initialize saved variables
local frame = CreateFrame("Frame")
frame:RegisterEvent("ADDON_LOADED")
frame:SetScript("OnEvent", function(self, event, addonName)
    if addonName == "BronzeAppraiser" then
        -- Initialize saved variables
        _G["BronzeAppraiser_Data"] = _G["BronzeAppraiser_Data"] or {}
    end
end)