;+
; Procedure:
;   goesr_fileconfig
;
; Purpose:
;   A widget that allows the user to set some of the !goesr variable. The user
;   can resettodefault, modify, and save the system variable.
;
;
; $LastChangedBy: jwl $
; $LastChangedDate: 2022-03-01 13:51:02 -0800 (Tue, 01 Mar 2022) $
; $LastChangedRevision: 30635 $
; $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_6_0/projects/goesr/spedas_plugin/goesr_fileconfig.pro $
;-

pro goesr_init_struct,state,struct

  compile_opt idl2,hidden

  widget_control,state.localdir,set_value=struct.local_data_dir
  widget_control,state.remotedir,set_value=struct.remote_data_dir

  if struct.no_download eq 1 then begin
    widget_control,state.nd_off_button,set_button=1
  endif else begin
    widget_control,state.nd_on_button,set_button=1
  endelse

  if struct.no_update eq 1 then begin
    widget_control,state.nu_off_button,set_button=1
  endif else begin
    widget_control,state.nu_on_button,set_button=1
  endelse

  if struct.downloadonly eq 1 then begin
    widget_control,state.do_on_button,set_button=1
  endif else begin
    widget_control,state.do_off_button,set_button=1
  endelse

  widget_control,state.v_droplist,set_combobox_select=struct.verbose

end

PRO goesr_fileconfig_event, event

  ; Get State structure from top level base
  Widget_Control, event.handler, Get_UValue=state, /No_Copy

  ; get the user value of the widget that caused this event
  err_xxx = 0
  Catch, err_xxx
  IF (err_xxx NE 0) THEN BEGIN
    Catch, /Cancel
    Help, /Last_Message
    state.statusbar->update,'Error in File Config.'
    state.historywin->update,'Error in File Config.'
    Widget_Control, event.TOP, Set_UValue=state, /No_Copy
    widget_control, event.top,/destroy
    RETURN
  ENDIF
  Widget_Control, event.id, Get_UValue = uval

  CASE uval OF

    'LOCALBROWSE':BEGIN

      ; display the file chooser window so the user can select the
      ; directory where they want their data files to reside
      widget_control, state.localDir, get_value=currentDir
      if currentDir ne '' then path = file_dirname(currentDir)
      dirName = Dialog_Pickfile(Title='Choose a Local Data Directory:', $
        Dialog_Parent=state.master,path=currentDir, /directory, /must_exist); /fix_filter doesn't seem to make a difference on Windows. Does on unix.
      IF is_string(dirName) THEN BEGIN
        !goesr.local_data_dir = dirName
        widget_control, state.localDir, set_value=dirName
      ENDIF ELSE BEGIN
        ;  ok = dialog_message('Selection is not a directory',/center)
      ENDELSE

    END

    'LOCALDIR': BEGIN

      widget_control, state.localDir, get_value=currentDir
      !goesr.local_data_dir = currentDir

    END

    'REMOTEDIR': BEGIN

      widget_control, state.remoteDir, get_value=currentDir
      !goesr.remote_data_dir = currentDir

    END

    'NDON': BEGIN

      IF event.select EQ 1 then !goesr.no_download=0 else !goesr.no_download=1

    END

    'NDOFF': BEGIN

      IF event.select EQ 1 then !goesr.no_download=1 else !goesr.no_download=0

    END

    'NUON': BEGIN

      IF event.select EQ 1 then !goesr.no_update=0 else !goesr.no_update=1

    END

    'NUOFF': BEGIN

      IF event.select EQ 1 then !goesr.no_update=1 else !goesr.no_update=0

    END

    'DOON': BEGIN

      IF event.select EQ 1 then !goesr.downloadonly=1 else !goesr.downloadonly=0

    END

    'DOOFF': BEGIN

      IF event.select EQ 1 then !goesr.downloadonly=0 else !goesr.downloadonly=1

    END

    'VERBOSE': BEGIN

      !goesr.verbose = long(widget_info(state.v_droplist,/combobox_gettext))

    END

    'RESET': BEGIN

      ; this is basically a cancel and will reset all values to
      ; the original values at the time this window was first
      ; displayed
      !goesr=state.goesr_cfg_save
      widget_control,state.localdir,set_value=!goesr.local_data_dir
      widget_control,state.remotedir,set_value=!goesr.remote_data_dir
      if !goesr.no_download eq 1 then begin
        widget_control,state.nd_off_button,set_button=1
      endif else begin
        widget_control,state.nd_on_button,set_button=1
      endelse
      if !goesr.no_update eq 1 then begin
        widget_control,state.nu_off_button,set_button=1
      endif else begin
        widget_control,state.nu_on_button,set_button=1
      endelse
      if !goesr.downloadonly eq 1 then begin
        widget_control, state.do_on_button, set_button=1
      endif else begin
        widget_Control, state.do_off_button, set_button=1
      endelse
      widget_control,state.v_droplist,set_combobox_select=!goesr.verbose
      state.historywin->update,'Resetting controls to saved values.'
      state.statusbar->update,'Resetting controls to saved values.'

    END

    'RESETTODEFAULT': Begin

      goesr_init,  /reset
      goesr_init_struct,state,!goesr
      state.historywin->update,'Resetting configuration to default values.'
      state.statusbar->update,'Resetting configuration to default values.'

    END

    'SAVE': BEGIN

      ; save the current values of the !goesr system variable
      goesr_write_config
      state.statusBar->update,'Saved goesr_config.txt'
      state.historyWin->update,'Saved goesr_config.txt'

    END

    ELSE:
  ENDCASE

  widget_control, event.handler, set_uval = state, /no_copy

  Return
END ;--------------------------------------------------------------------------------


PRO goesr_fileconfig, tab_id, historyWin, statusBar

  ;check whether the !goesr system variable has been initialized
  defsysv, 'goesr', exists=exists
  if not keyword_set(exists) then goesr_init
  goesr_cfg_save = !goesr

  ;Build the widget bases
  master = Widget_Base(tab_id, /col, tab_mode=1,/align_left, /align_top)

  ;widget base for values to set
  vmaster = widget_base(master, /col, /align_left, /align_top)
  top = widget_base(vmaster,/row)

  ;Widget base for save, reset and exit buttons
  bmaster = widget_base(master, /row, /align_center, ypad=7)
  ll = max(strlen([!goesr.local_data_dir, !goesr.remote_data_dir]))+12

  ;Now create directory text widgets
  configbase = widget_base(vmaster,/col)

  lbase = widget_base(configbase, /row, /align_left, ypad=5)
  flabel = widget_label(lbase, value = 'Local data directory:    ')
  localdir = widget_text(lbase, /edit, /all_events, xsiz = ll, $
    uval = 'LOCALDIR', val = !goesr.local_data_dir)
  loc_browsebtn = widget_button(lbase,value='Browse', uval='LOCALBROWSE',/align_center)

  rbase = widget_base(configbase, /row, /align_left, ypad=5)
  flabel = widget_label(rbase, value = 'Remote data directory: ')
  remotedir = widget_text(rbase, /edit, /all_events, xsiz = ll, $
    uval = 'REMOTEDIR', val = !goesr.remote_data_dir)

  ;Next radio buttions
  nd_base = widget_base(configbase, /row, /align_left)
  nd_labelbase = widget_base(nd_base,/col,/align_center)
  nd_label = widget_label(nd_labelbase, value='Download Data:',/align_left)
  nd_buttonbase = widget_base(nd_base, /exclusive, column=2, uval="ND",/align_center)
  nd_on_button = widget_button(nd_buttonbase, value='Automatically    ', uval='NDON',/align_left)
  nd_off_button = widget_button(nd_buttonbase, value='Use Local Data Only', uval='NDOFF',/align_left)

  nubase = widget_base(configbase, /row, /align_left)
  nu_labelbase = widget_base(nubase,/col,/align_center)
  nu_label = widget_label(nu_labelbase, value='Update Files:',/align_left)
  nu_buttonbase = widget_base(nubase, /exclusive, column=2, uval="NU",/align_center)
  nu_on_button = widget_button(nu_buttonbase, value='Update if Newer  ', uval='NUON',/align_left)
  nu_off_button = widget_button(nu_buttonbase, value='Use Local Data Only', uval='NUOFF',/align_left)

  ;downloadonly option
  do_base = widget_base(configbase, /row, /align_left)
  do_labelbase = widget_base(do_base, /col, /align_center)
  do_label = widget_label(do_labelbase, value='Load into GUI:', /align_left)
  do_buttonbase = widget_base(do_base, /exclusive, column=2, uval='DO',/align_center)
  do_off_button = widget_button(do_buttonbase, value='Load data', uval='DOOFF', /align_left)
  do_on_button = widget_button(do_buttonbase, value='Download Files Only', uval='DOON', /align_left)

  ;Verbosity
  v_base = widget_base(configbase, /row, ypad=7)
  v_label = widget_label(v_base, value='Verbose (higher value = more comments):      ')
  v_values = ['0', '1', '2','3', '4', '5', '6', '7', '8', '9', '10']
  v_droplist = widget_Combobox(v_base, value=v_values, uval='VERBOSE', /align_center)

  ;buttons
  savebut = widget_button(bmaster, value = '  Save to File   ', uvalue = 'SAVE')
  resetbut = widget_button(bmaster, value = '     Cancel    ', uvalue = 'RESET')
  reset_to_dbutton =  widget_button(bmaster,  value =  '  Reset to Default   ',  uvalue =  'RESETTODEFAULT')

  ;defaults for reset:
  def_values=[0,0,0,2]

  state = {localdir:localdir, remotedir:remotedir, goesr_cfg_save:goesr_cfg_save, $
    nd_on_button:nd_on_button, nd_off_button:nd_off_button, $
    nu_on_button:nu_on_button, nu_off_button:nu_off_button, $
    do_on_button:do_on_button, do_off_button:do_off_button, $
    v_values:v_values, v_droplist:v_droplist, statusBar:statusBar, $
    def_values:def_values, historyWin:historyWin, tab_id:tab_id, master:master}

  goesr_init_struct,state,!goesr

  widget_control, master, set_uval = state, /no_copy
  widget_control, master, /realize
  ;msg = 'Editing goesr configuration.'
  ;statusBar->update,msg
  ;historywin->update, msg

  ;keep windows in X11 from snaping back to
  ;center during tree widget events
  if !d.NAME eq 'X' then begin
    widget_control, master, xoffset=0, yoffset=0
  endif

  xmanager, 'goesr_fileconfig', master, /no_block

END ;--------------------------------------------------------------------------------