--- item_repo.lua
--- Library for fetching Skyblocker item repository items by NEU id.
--- Returns LuaItemStack objects usable like any other item stack in scripts.
---@class item_repo
local ItemRepo = {}

local ItemRepository = luajava.bindClass("de.hysky.skyblocker.skyblock.itemlist.ItemRepository")
local ItemUtils = luajava.bindClass("de.hysky.skyblocker.utils.ItemUtils")
local LuaItemStackClass = "com.nekiplay.neoscripts.features.lua.objects.datatypes.LuaItemStack"

local function toPrice(optional)
    if not optional then return nil end
    if not optional:isPresent() then return nil end
    return optional:getAsDouble()
end

--- Whether the item repository files have finished loading.
--- @return boolean true when items/recipes are ready to be queried.
function ItemRepo.isImported()
    return ItemRepository:filesImported()
end

--- Get a LuaItemStack from the repository by NEU id.
--- @param neuId string NEU item id (e.g. "HYPERION").
--- @return LuaItemStack|nil Wrapped item stack, or nil if not found or repo not loaded yet.
function ItemRepo.getItemStack(neuId)
    local flex = ItemRepository:getItemStack(neuId)
    if not flex then return nil end
    local stack = flex:getStack()
    if not stack then return nil end
    return luajava.newInstance(LuaItemStackClass, stack)
end

--- Get the raw Minecraft ItemStack from the repository by NEU id.
--- @param neuId string NEU item id (e.g. "HYPERION").
--- @return userdata|nil Raw net.minecraft.world.item.ItemStack, or nil if not found.
function ItemRepo.getStack(neuId)
    local flex = ItemRepository:getItemStack(neuId)
    if not flex then return nil end
    return flex:getStack()
end

--- Get a LuaItemStack with a fallback when not found.
--- @param neuId string NEU item id (e.g. "HYPERION").
--- @param defaultStack userdata LuaItemStack to return when lookup fails.
--- @return LuaItemStack|userdata|nil Found stack, defaultStack, or nil.
function ItemRepo.getItemStackOr(neuId, defaultStack)
    local stack = ItemRepo.getItemStack(neuId)
    return stack or defaultStack
end

--- Get the current price of an item from the repository by NEU id.
--- Uses bazaar sell price or lowest bin via Skyblocker price data.
--- @param neuId string NEU item id (e.g. "HYPERION").
--- @param useBazaarBuyPrice boolean|nil Use bazaar buy price instead of sell price (default false).
--- @return number|nil Price in coins, or nil if no price data.
function ItemRepo.getPrice(neuId, useBazaarBuyPrice)
    local flex = ItemRepository:getItemStack(neuId)
    if not flex then return nil end
    local apiId = flex:getSkyblockApiId()
    if not apiId or apiId == "" then return nil end
    return toPrice(ItemUtils:getItemPrice(apiId, useBazaarBuyPrice or false))
end

--- Get the current price of a LuaItemStack.
--- Works on any LuaItemStack, not just repository items.
--- @param luaStack userdata LuaItemStack to price.
--- @param useBazaarBuyPrice boolean|nil Use bazaar buy price instead of sell price (default false).
--- @return number|nil Price in coins, or nil if no price data.
function ItemRepo.getItemPrice(luaStack, useBazaarBuyPrice)
    local stack = luaStack.javaClass
    if not stack then return nil end
    local apiId = stack:getSkyblockApiId()
    if not apiId or apiId == "" then return nil end
    return toPrice(ItemUtils:getItemPrice(apiId, useBazaarBuyPrice or false))
end

--- Get the craft cost of an item by NEU id.
--- @param neuId string NEU item id (e.g. "HYPERION").
--- @return number|nil Craft cost in coins.
function ItemRepo.getCraftCost(neuId)
    local cost = ItemUtils:getCraftCost(neuId)
    if not cost or cost <= 0 then return nil end
    return cost
end

return ItemRepo