@lazyglobal off.

runoncepath("/lib/ui").
runoncepath("/lib/navigation").
runoncepath("/lib/throttle").
runoncepath("/lib/node").
runoncepath("/lib/stabilize_rocket").
runoncepath("/lib/launch_rocket").

clearguis().

global done is false.
on AG9 {
  set done to true.
  return true.
}

// Main UI.
local iface is gui(250, 300).
set iface:X to 200.
set iface:Y to 700.

// Main menu elements in here.
local top is iface:AddVLayout().
local row is makeRow(top).

local btn is row:AddButton("TERM").
set btn:TOGGLE to true.
set btn:ONTOGGLE to {
  parameter d.

  if d {
    CORE:PART:GETMODULE("kOSProcessor"):DOEVENT("Open Terminal").
  } else {
    CORE:PART:GETMODULE("kOSProcessor"):DOEVENT("Close Terminal").
  }
}.

makeButton(row, "CONF", { stk:ShowOnly(panes["conf"]). }).

set row to makeRow(top).

makeButton(row, "HOVER", { Hover(). }).
makeButton(row, "LAND", { Land(). }).

set row to makeRow(top).

makeButton(row, "LNCH", { stk:ShowOnly(panes["launch"]). }).

makeButton(row, "NODE", {
  if HASNODE {
    set nodeDV:TEXT to NEXTNODE:DELTAV:MAG:ToString.
    set nodeBT:TEXT to BurnTime(NEXTNODE:DELTAV:MAG):ToString.
  } else {
    set nodeDV:TEXT to "No Node".
    set nodeBT:TEXT to "No Node".
  }
  stk:ShowOnly(panes["node"]).
}).

makeButton(row, "TWR", { stk:ShowOnly(panes["twr"]). }).

local stk is iface:AddStack().
local panes is Lex().

// Build launch menu
local top is stk:AddVLayout().
panes:Add("launch", top).

local box is top:AddScrollBox().

set row to makeRow(box).
row:AddLabel("Target Apoapsis").
local targetApo is row:AddTextField("80000"). // todo: config params should go into a nested lexicon

set row to makeRow(box).
row:AddLabel("Atmo TWR").
local targetTWR is row:AddTextField("1.6").

set row to makeRow(box).
row:AddLabel("Initial Pitch").
local initialPitch is row:AddTextField("85").

set row to makeRow(box).
row:AddLabel("Minimum Pitch").
local minimumPitch is row:AddTextField("5").

set row to makeRow(box).
row:AddLabel("Gravity Turn Alt").
local gravTurnStart is row:AddTextField("8000").

set row to makeRow(box).
row:AddLabel("Gravity Turn Pitch").
local gravPitch is row:AddTextField("75").

makeButton(top, "Execute", {
    Launch(
    targetApo:TEXT:ToNumber(),
    gravTurnStart:TEXT:ToNumber(),
    gravPitch:TEXT:ToNumber(),
    initialPitch:TEXT:ToNumber(),
    minimumPitch:TEXT:ToNumber()
  ).
}).
// End Launch Menu

// Build conf menu
local top is stk:AddVLayout().
panes:Add("conf", top).

set box to top:AddScrollbox().

set row to makeRow(box).
row:AddLabel("Torque Epsilon Max").
local maxEpsilon is row:AddTextField("0.001").

set row to makeRow(box).
row:AddLabel("Max Stopping Time").
local maxStopTime is row:AddTextField("2.0").

makeButton(top, "Apply", {
  set STEERINGMANAGER:TORQUEEPSILONMAX to maxEpsilon:TEXT:ToNumber().
  set STEERINGMANAGER:MAXSTOPPINGTIME to maxStopTime:TEXT:ToNumber().
}).
// end conf menu

// twr menu
local top is stk:AddVLayout().
panes:Add("twr", top).

set row to makeRow(top).
row:AddLabel("Target TWR").
local twrLock is row:AddTextField("1.6").

makeButton(top, "Lock TWR", {
  local done is false.
  on AG9 {
    set done to true.
  }

  print "Locking throttle to target TWR.".
  local tgt is twrLock:TEXT:ToNumber().
  lock THROTTLE to ThrottleToTWR(tgt).
  wait until done.
  print "Throttle unlocked.".
}).
// end twr menu

// node menu
local top is stk:AddVLayout().
panes:Add("node", top).

set row to makeRow(top).
row:AddLabel("Node dV").
local nodeDV is row:AddLabel().

set row to makeRow(top).
row:AddLabel("Node Burn Time").
local nodeBT is row:AddLabel().

makeButton(top, "Execute", { ExecNode(). }).
// end node menu

iface:show().
wait until false.