sethmc ndisk terminal

-- ndisk_terminal.lua
-- Admin Terminal for NDisk
-- Run this ON THE SERVER to manually manage files.
-- It shares the same API instance (and chunklocation.txt) that the server uses.

-- Try to use global ndisk if available (when running in server's multishell)
-- Otherwise load it ourselves
local ndisk = _G.ndisk or dofile("ndisk_api.lua")

print("NDisk Admin Terminal")
print("Loading API...")
if not _G.ndisk then
    ndisk.init()
end

local function printHelp()
    print("Available commands:")
    print("  list [path]      - List files")
    print("  read <path>      - Read a file")
    print("  write <path>     - Write a file (manual input)")
    print("  delete <path>    - Delete a file")
    print("  space            - Show free space")
    print("  nodes            - Rediscover/Show nodes")
    print("  help             - Show this menu")
    print("  exit             - Exit terminal")
end

print("Ready. Type 'help' for commands.")

while true do
    write("ndisk> ")
    local input = read()
    local command = {}
    for word in input:gmatch("%S+") do
        table.insert(command, word)
    end

    local cmd = command[1]
    local arg1 = command[2]

    if cmd == "list" then
        local path = arg1 or ""
        local items = ndisk.list(path)
        print("Listing '"..path.."':")
        if #items == 0 then print("  (No files found)") end
        for _, item in ipairs(items) do
            print("  " .. item)
        end

    elseif cmd == "read" and arg1 then
        local content, err = ndisk.read(arg1)
        if content then
            print("--- BEGIN FILE ---")
            print(content)
            print("--- END FILE ---")
        else
            print("Error: " .. (err or "Unknown error"))
        end

    elseif cmd == "write" and arg1 then
        print("Enter content for '"..arg1.."' (Type 'EOF' on a new line to finish):")
        local content = ""
        while true do
            local line = read()
            if line == "EOF" then break end
            content = content .. line .. "\n"
        end
        local success, err = ndisk.write(arg1, content)
        if success then
            print("File written successfully.")
        else
            print("Error: " .. (err or "Unknown error"))
        end

    elseif cmd == "delete" and arg1 then
        print("Deleting '"..arg1.."'...")
        local success, err = ndisk.delete(arg1)
        if success then
            print("Deleted.")
        else
            print("Error: " .. (err or "Unknown error"))
        end

    elseif cmd == "space" then
        local space = ndisk.getFreeSpace()
        print("Total Cluster Free Space: " .. space .. " bytes")

    elseif cmd == "nodes" then
        print("Refreshing node list...")
        -- ndisk.init() triggers discovery if needed, but we can force it
        -- if we expose a refresh function.
        -- If ndisk_api doesn't expose refresh, we just re-init or accept current state.
        -- Assuming standard usage:
        print("Nodes are managed automatically by the API.")

    elseif cmd == "help" then
        printHelp()

    elseif cmd == "exit" then
        break

    else
        print("Unknown command.")
        printHelp()
    end
end