OC-KittenOS/code/apps/app-flash.lua

-- Copyright (C) 2018-2021 by KittenOS NEO contributors
--
-- Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.
--
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
-- THIS SOFTWARE.

local event = require("event")(neo)
local neoux = require("neoux")(event, neo)

local eeprom = neo.requireAccess("c.eeprom")

-- note: fun coincidence makes this exactly the right size
-- 1234567890123456789012345
-- ABCDEF12 Lua BIOS
-- <get><set> <data> <label>
-- 21FEDCBA Nuclear Disk
-- <get><set> <data> <label>

local running = true

local busy = false

local regenCore

local function regenLabeller(set, get, wd)
 local tx = get()
 return wd, 2, nil, neoux.tcwindow(wd, 1, {
  neoux.tcfield(1, 1, wd, function (nt)
   if nt then
    tx = nt
    set(nt)
   end
   return tx
  end)
 }, function (w)
  busy = false
  w.reset(regenCore())
 end, 0xFFFFFF, 0)
end

function regenCore()
 local elems = {}
 local l = 1
 for v in eeprom.list() do
  local lbl = unicode.safeTextFormat(v.getLabel())
  table.insert(elems, neoux.tcrawview(1, l, {
   require("fmttext").pad(v.address:sub(1, 8) .. " " .. lbl, 25, false, true)
  }))
  table.insert(elems, neoux.tcbutton(1, l + 1, "get", function (window)
   if busy then return end
   busy = true
   local fd = neoux.fileDialog(true)
   if not fd then busy = false return end
   fd.write(v.get())
   fd.close()
   busy = false
   neoux.startDialog("Got the data!", nil, true)
   window.reset(regenCore())
  end))
  table.insert(elems, neoux.tcbutton(6, l + 1, "set", function (window)
   if busy then return end
   busy = true
   local fd = neoux.fileDialog(false)
   if not fd then busy = false return end
   local eepromCode = fd.read("*a")
   fd.close()
   local wasOk, report = v.set(eepromCode)
   report = (wasOk and tostring(report)) or "Flash successful.\nI recommend relabelling the EEPROM."
   busy = false
   neoux.startDialog(report, nil, true)
   window.reset(regenCore())
  end))
  local function dHandler(set, get, wd)
   local setter = v[set]
   local getter = v[get]
   return function (window)
    if busy then return end
    busy = true
    window.reset(regenLabeller(setter, getter, wd))
   end
  end
  table.insert(elems, neoux.tcbutton(12, l + 1, "data", dHandler("setData", "getData", 38)))
  table.insert(elems, neoux.tcbutton(19, l + 1, "label", dHandler("setLabel", "getLabel", 18)))
  l = l + 2
 end
 return 25, l - 1, nil, neoux.tcwindow(25, l - 1, elems, function (w)
  w.close()
  running = false
 end, 0xFFFFFF, 0)
end

local window = neoux.create(regenCore())

while running do
 local s = {event.pull()}
 if (s[1] == "h.component_added" or s[1] == "h.component_removed") and busy then
  -- Anything important?
  if s[3] == "gpu" or s[3] == "screen" then
   window.reset(regenCore())
  end
 end
end