-- P19 UI: overwrite-all, readonly re-prompt, skip-all, rename и cancel.

local KB = ":kbd:ms_naturl:"
local HOLD = 0.06
local events = {}

local function add(t, tag, mask, value)
  events[#events + 1] = {t, KB .. tag, mask, value}
end

local function key(t, tag, mask)
  add(t, tag, mask, 1)
  add(t + HOLD, tag, mask, 0)
end

local function chord(t, mod_tag, mod_mask, key_tag, key_mask)
  add(t, mod_tag, mod_mask, 1)
  add(t + 0.02, key_tag, key_mask, 1)
  add(t + 0.08, key_tag, key_mask, 0)
  add(t + 0.10, mod_tag, mod_mask, 0)
end

local chars = {
  a={"P1.6",0x04}, b={"P1.5",0x10}, c={"P1.4",0x08},
  d={"P1.4",0x04}, e={"P1.4",0x20}, i={"P1.4",0x01},
  m={"P2.0",0x10}, n={"P2.0",0x08}, o={"P2.2",0x02},
  p={"P2.3",0x20}, r={"P1.5",0x01}, s={"P1.2",0x08},
  t={"P1.5",0x20}, x={"P1.2",0x10}, ["."]={"P2.2",0x10},
  ["\n"]={"P2.1",0x10}, [":"]={"P2.3",0x02,true}
}

local function type_text(t, value)
  for i = 1, #value do
    local ch = value:sub(i, i)
    local def = chars[ch] or chars[ch:lower()]
    local shifted = def[3] or ch ~= ch:lower()
    if shifted then chord(t, "P1.7", 0x02, def[1], def[2])
    else key(t, def[1], def[2]) end
    t = t + 0.14
  end
  return t
end

type_text(8.0, "d:\n")
type_text(10.0, "SPRCMD.EXE\n")
key(16.0, "P1.6", 0x20) -- right root.
key(17.0, "P2.1", 0x10) -- enter P19DST.
key(18.0, "P1.6", 0x20) -- left root.
key(19.0, "P2.3", 0x10) -- P19DST -> P19SRC.
key(20.0, "P2.1", 0x10) -- enter P19SRC.

key(22.0, "P2.3", 0x10) -- AONE.
key(23.0, "P2.6", 0x01) -- select AONE -> ATWO.
key(24.0, "P2.6", 0x01) -- select ATWO -> CANCEL.
key(25.0, "P2.3", 0x10) -- REN.
key(26.0, "P2.3", 0x10) -- RONLY.
key(27.0, "P2.6", 0x01) -- select RONLY -> SONE.
key(30.0, "P2.1", 0x40) -- group F5.
key(33.0, "P1.6", 0x04) -- A = overwrite all.
key(40.0, "P2.2", 0x02) -- O = explicit readonly overwrite.

chord(47.0, "P1.1", 0x02, "P1.5", 0x01) -- refresh/reset selection.
key(49.0, "P2.6", 0x01) -- select SONE -> STWO.
key(50.0, "P2.6", 0x01) -- select STWO.
key(52.0, "P2.1", 0x40) -- group F5.
key(56.0, "P2.0", 0x08) -- N = skip all.

chord(60.0, "P1.1", 0x02, "P1.5", 0x01)
key(62.0, "P2.5", 0x01) -- Home -> `..`.
key(63.0, "P2.3", 0x10) -- AONE.
key(64.0, "P2.3", 0x10) -- ATWO.
key(65.0, "P2.3", 0x10) -- CANCEL.
key(66.0, "P2.3", 0x10) -- REN.
key(68.0, "P2.1", 0x40) -- single F5.
key(72.0, "P1.5", 0x01) -- R = rename.
type_text(74.0, "NEXT.BIN\n")

key(80.0, "P2.5", 0x01) -- Home -> `..`.
key(80.5, "P2.3", 0x10) -- AONE.
key(81.0, "P2.3", 0x10) -- ATWO.
key(81.5, "P2.3", 0x10) -- CANCEL.
key(83.0, "P2.1", 0x40)
key(87.0, "P1.6", 0x40) -- Esc conflict.
key(90.0, "P1.6", 0x20) -- inspect target.
key(95.0, "P2.3", 0x80) -- F10.
key(97.0, "P2.1", 0x10)

-- Запас на I/O MAME 0.287: ответ readonly должен идти после двух копий.
for _, event in ipairs(events) do
  if event[1] >= 40.0 then event[1] = event[1] + 20.0 end
end

table.sort(events, function(left, right) return left[1] < right[1] end)
local snap_times = {31.5, 38.0, 44.0, 54.0, 58.0, 70.0, 76.0, 85.0, 89.0, 92.0, 99.0}
for i, t in ipairs(snap_times) do
  if t >= 40.0 then snap_times[i] = t + 20.0 end
end
local snaps_done = {}
local start_time = nil
local ports = nil
local index = 1
local field_cache = {}

local function now()
  local value = manager.machine.time
  return value.seconds + value.attoseconds / 1e18
end

local function field(tag, mask)
  local cache_key = tag .. "/" .. mask
  if field_cache[cache_key] then return field_cache[cache_key] end
  for _, candidate in pairs(ports[tag].fields) do
    if candidate.mask == mask then
      field_cache[cache_key] = candidate
      return candidate
    end
  end
  error("Не найдено поле " .. cache_key)
end

emu.add_machine_reset_notifier(function() start_time = now() end)
emu.register_periodic(function()
  if not start_time then return end
  if not ports then ports = manager.machine.ioport.ports end
  local elapsed = now() - start_time
  while index <= #events and elapsed >= events[index][1] do
    local event = events[index]
    field(event[2], event[3]):set_value(event[4])
    index = index + 1
  end
  for _, snap_time in ipairs(snap_times) do
    if not snaps_done[snap_time] and elapsed >= snap_time then
      snaps_done[snap_time] = true
      manager.machine.video:snapshot()
      print("[p19-policy] snapshot t=" .. elapsed)
    end
  end
  if elapsed >= 121.0 then manager.machine:exit() end
end)