PRO dustem_activate_plugins,p_min,st=st,help=help,use_previous_fortran=use_previous_fortran

;== This code should actually be called dustem_run_the_whole_model (or something like this)
;== Note sure what the use_previous_fortran is actually usd for ...

;+
; NAME:
;    dustem_activate_plugins

;

; PURPOSE:

;    activates the plugins invoked by the parameter description vector (pd) and the fixed parameter description vector (fpd)

;

; CATEGORY:

;    DustEMWrapp, Distributed, Mid-Level, Plugins
;

; CALLING SEQUENCE:

;    dustem_activate_plugins,p_min[,st][,/help] 

;

; INPUTS:

;    p_min = dustem parameter values normalized to initial parameter values

;

; OPTIONAL INPUT PARAMETERS:

;

; OUTPUTS:

;    None

;

; OPTIONAL OUTPUT PARAMETERS:

;    st = Dustem output structure, with contribution from pluggins taken into account

;

; ACCEPTED KEY-WORDS:

;    use_previous_fortran = if set, uses the output of the previous fortran run, and does not run the fortran.

;    help                  = if set, print this help

;

; COMMON BLOCKS:
;    None

;

; SIDE EFFECTS:
;    None

;

; RESTRICTIONS:

;    The DustEM fortran code must be installed
;    The DustEMWrap idl code must be installed

;

; PROCEDURES AND SUBROUTINES USED:

;

; EXAMPLES

;    dustem_activate_plugins, p_min ,st=st

;
; MODIFICATION HISTORY:

;    Written by IC

;    Evolution details on the DustEMWrap gitlab.
;    See http://dustemwrap.irap.omp.eu/ for FAQ and help.  

;-


IF keyword_set(help) THEN BEGIN
  doc_library,'dustem_activate_plugins'
  goto,the_end
  output=0.
ENDIF

;stop

IF ptr_valid((*!dustem_fit).param_descs) THEN BEGIN
    p_dim = p_min * (*(*!dustem_fit).param_init_values)
    ;This is to account for fixed parameters
    ;caution: this assumes there are variable parameters, could not always be the case ...
    IF isa((*!dustem_fit).fixed_param_descs) THEN BEGIN 
        ;concatenating the parameter vectors
        param_descs =  [(*(*!dustem_fit).param_descs),(*(*!dustem_fit).fixed_param_descs)]  
        param_values = [p_dim,(*(*!dustem_fit).fixed_param_init_values)]
        param_values = param_values[sort(param_descs)] ;should we put it back to the way it was?
        param_descs = param_descs[sort(param_descs)]
    ENDIF ELSE BEGIN
        param_descs = (*(*!dustem_fit).param_descs)
        param_values = p_dim
    ENDELSE

ENDIF ELSE BEGIN

    message,'(*!dustem_fit).param_descs not set',/continue
    stop
    ;JPB: not sure what to do then. pdim is needed below to run the fortran

ENDELSE

;stop

;===== Run the plugins, according to their scopes (and the Fortran)

;The 'ADD_SED' plugins are run first. Note that their output could be used by plugins run later. 
;The plugins related to 'ISRF' are run second, and the Fortrn is run at that stage, just after the corresponding plugins.
;The plugins which Replace the output of the fortran are run last.

;IF /avoid is used the specified scopes are avoided. They're considered when /avoid is missing.

;using '**' so not to write the entire scope

;=== This runs the plugins

;JPB: Removed allusion to param_func not used in dustem_run_plugins.pro (08 March 2024)

;dustem_run_plugins, p_dim ,param_descs, param_values, param_func, ['ADD_SED'], avoid=1,use_previous_fortran=use_previous_fortran

;dustem_run_plugins, p_dim ,param_descs, param_values, param_func, 1, avoid=1,use_previous_fortran=use_previous_fortran

;dustem_run_plugins, p_dim ,param_descs, param_values, 1
dustem_run_plugins, param_descs, param_values, 1

;===== This one is the one that runs the Fortran even if there is no plugin of type 2 invoked (!)

;dustem_run_plugins, p_dim ,param_descs, param_values, 2,st=st ;dustem output is available at this step.
dustem_run_plugins, param_descs, param_values, 2,st=st ;dustem output is available at this step.

;dustem_run_plugins, p_dim ,param_descs, param_values, 3
dustem_run_plugins, param_descs, param_values, 3

;dustem_run_plugins, p_dim ,param_descs, param_values, 4,/ask_for_st,st=st,N2be_run=N2be_run
dustem_run_plugins, param_descs, param_values, 4,/ask_for_st,st=st,N2be_run=N2be_run

;=== If no type 4 plugin was dtected, run the Fortran
;=== This was previously done in dustem_run_plugins
IF N2be_run EQ 0 THEN BEGIN
   st = dustem_run(p_dim,use_previous_fortran=use_previous_fortran)
   !dustem_current = ptr_new(st)
ENDIF

the_end:

END