Begin making backend-chests work
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@ -1,52 +1,59 @@
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-- Chest backend
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-- Currently just the one for Dragon. Will not actually work yet.
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local util = require "util"
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local conf = util.conf
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local w = require "lib"
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local d = require "luadash"
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rednet.open(conf.modem)
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local conf = w.load_config({
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"buffer_internal",
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"buffer_external"
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})
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local BUFFER_OUT_SLOT = 1
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local BUFFER_IN_SLOT = 2
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-- Find all chests or shulker boxes
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local inventories = {}
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for _, n in pairs(peripheral.getNames()) do
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local p = peripheral.wrap(n)
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if
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string.find(n, "chest") or
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string.find(n, "shulker") then
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inventories[n] = p
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end
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end
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local inventories = w.find_peripherals(function(type, name, wrapped)
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return string.find(name, "chest") or string.find(name, "shulker")
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end)
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local nameCache = {}
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local function get_cache_name(item)
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local n = item.name .. ":" .. item.damage
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end
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-- Gets the display name of the given item (in the given chest peripheral & slot)
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-- If its name is not cached, cache it.
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-- If it is, just return the cached name
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function cache(item, chest, slot)
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local function cache(item, chest, slot)
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local idx = item.name .. ":" .. item.damage
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if nameCache[idx] then
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return nameCache[idx]
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else
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local n = chest.getItemMeta(slot).displayName
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local n = chest.getItemMeta(slot).display_name
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nameCache[idx] = n
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return n
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end
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end
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local index = {}
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function updateIndexFor(name)
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-- Update the index for the given peripheral
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local function update_index_for(name)
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local inv = inventories[name]
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local data = inv.list()
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for slot, item in pairs(data) do
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data[slot].displayName = cache(item, inv, slot)
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data[slot].display_name = cache(item, inv, slot)
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end
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index[name] = data
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end
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function updateIndex()
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-- Reindex all connected inventories
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local function update_index()
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for n in pairs(inventories) do
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updateIndexFor(n)
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sleep()
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@ -54,19 +61,23 @@ function updateIndex()
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print "Indexing complete."
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end
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-- Finds all items matching a certain predicate
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function find(predicate)
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for name, items in pairs(index) do
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-- Finds all items matching a certain predicate.
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-- Returns a table of tables of { name, slot, item }
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local function find(predicate)
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local ret = {}
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for inventory, items in pairs(index) do
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for slot, item in pairs(items) do
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if predicate(item) then
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return name, slot, item
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local ok, extra = predicate(item) -- allow predicates to return some extra data which will come out in resulting results
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if ok then
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table.insert(ret, { location = { inventory = inventory, slot = slot }, item = item, extra = extra })
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end
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end
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end
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return ret
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end
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-- Finds space in the chest system
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function findSpace()
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-- Finds space in the chest system. Returns the name of an inventory which has space.
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local function find_space()
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for name, items in pairs(index) do
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if #items < inventories[name].size() then
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return name
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@ -74,76 +85,39 @@ function findSpace()
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end
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end
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function search(msg)
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local function find_by_ID_meta(id, meta)
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return find(function(item)
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return
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(not msg.meta or item.damage == msg.meta) and
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(not msg.name or item.name == msg.name) and
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(not msg.dname or string.find(item.displayName:lower(), msg.dname:lower()))
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(not meta or item.damage == meta) and -- if metadata provided, ensure match
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(not id or item.name == id) -- if internal name provided, ensure match
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end)
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end
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function processRequest(msg)
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print(textutils.serialise(msg))
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local function search(query, threshold)
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local threshold = threshold or 4
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local results = find(function(item)
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local distance = d.distance(query, item.display_name)
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if distance < threshold then
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return true, distance
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else return false end
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end)
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return d.sort(results, function(x) return x.extra end) -- sort returned results by closeness to query
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end
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-- Extract an item. If meta and name are supplied, each supplied value must match exactly.
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-- Applies a fuzzy search to display names
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-- Extracted items are either deposited in buffer or directly in target inventory.
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if msg.cmd == "extract" then
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local inv, slot, item = search(msg)
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local fetch_by_location(loc, limit)
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local peripheral_name, slot, limit = loc.inventory, loc.slot, limit or 64
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return peripheral.call(conf.buffer_internal, "pullItems", peripheral_name, slot, limit, BUFFER_OUT_SLOT)
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end
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local qty = msg.qty or 64
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updateIndexFor(inv)
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local moved = peripheral.call(conf.bufferOutInternal, "pullItems", inv, slot, qty, 1)
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if msg.destInv then
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moved = peripheral.call(conf.bufferOutExternal, "pushItems", msg.destInv, 1, 64, msg.destSlot)
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end
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return {moved, item}
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-- Pulls items from an external inventory into storage.
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elseif msg.cmd == "insert" then
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if msg.fromInv and msg.fromSlot then
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peripheral.call(conf.bufferInExternal, "pullItems", msg.fromInv, msg.fromSlot, msg.qty or 64, 1)
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end
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local toInv = findSpace()
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if not toInv then return "ERROR" end
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peripheral.call(conf.bufferInInternal, "pushItems", toInv, 1)
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updateIndexFor(toInv) -- I don't know a good way to figure out where exactly the items went
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return "OK"
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-- Just return the external network names of the buffers
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elseif msg.cmd == "buffers" then
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return { conf.bufferInExternal, conf.bufferOutExternal }
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-- Reindexes system
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elseif msg.cmd == "reindex" then
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local function server(command)
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if command.type == "buffers" then -- Sends the external address of the buffer
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return conf.buffer_external
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elseif command.type == "reindex" then
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updateIndex()
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return "OK"
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-- Returns entire index
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elseif msg.cmd == "list" then
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return util.collate(index)
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-- Looks up supplied name in the cache.
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elseif msg.cmd == "name" then
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msg.meta = msg.meta or 0
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return msg.name and msg.meta and nameCache[msg.name .. ":" .. msg.meta]
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elseif command.type == "extract" then
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local result = find_by_ID_meta(command.ID, command.meta)
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end
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end
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function processRequests()
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while true do
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util.processMessage(function(msg)
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local ok, r = pcall(processRequest, msg)
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if not ok then r = "ERROR" end
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return true, r
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end)
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end
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end
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updateIndex()
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processRequests()
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update_index()
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serve(server, "storage")
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@ -1,6 +1,6 @@
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local wyvern_files = {
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root = "https://osmarks.tk/git/osmarks/wyvern/raw/branch/master/",
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files = { "installer.lua", "luadash.lua", "lib.lua" }
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files = { "installer.lua", "luadash.lua", "lib.lua", "backend-chests.lua" }
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}
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local args = {...}
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