BlockchainTokenAttribute

-- Address to the smart contract behind "Loot (for Adventurers)"
-- https://etherscan.io/address/0xff9c1b15b16263c61d017ee9f65c50e4ae0113d7
local SMART_CONTRACT_ADDRESS = "0xff9c1b15b16263c61d017ee9f65c50e4ae0113d7"
local COLLECTION_SIZE = 8000
local FREE_CHOICE_AMOUNT = 5

-- Prepare random number generator. Seed is based on the date
local today = DateTime.CurrentTime()
local rngSeed = today.year * today.month * today.day
local rng = RandomStream.New(rngSeed)

-- Choose random token IDs
local tokenIds = {}
for i = 1,FREE_CHOICE_AMOUNT do
    local id = tostring(rng:GetInteger(1, COLLECTION_SIZE))
    table.insert(tokenIds, id)
end

-- Fetch the NFTs
local params = {
    tokenIds = tokenIds
}
local freeChoiceTokens = Blockchain.GetTokens(SMART_CONTRACT_ADDRESS, params)
--[[ Alternate implementation to fetch the NFTs
local freeChoiceTokens = {}
for _, id in ipairs(tokenIds) do
    local token = Blockchain.GetToken(SMART_CONTRACT_ADDRESS, id)
    table.insert(freeChoiceTokens, token)
end
]]

-- Print results. Attributes arrive in random order
print("\nFree choices for today:\n")
for _,token in ipairs(freeChoiceTokens) do
    print("Loot Bag #" .. token.tokenId)

    local allAttributes = token:GetAttributes()
    for k, attribute in pairs(allAttributes) do
        print("  " .. attribute:GetValue())
    end
end

-- Alternate version, with attributes ordered based on original design
local sortedAttributeNames = {
    "weapon", "chest", "head", "waist", "foot", "hand", "neck", "ring"
}
print("\n(v2) Free choices for today:\n")
for _,token in ipairs(freeChoiceTokens) do
    print("Loot Bag #" .. token.tokenId)

    for _, attributeName in pairs(sortedAttributeNames) do
        local attribute = token:GetAttribute(attributeName)
        print("  " .. attribute:GetValue())
    end
end