#!/usr/bin/env python

### A. Spiga + T. Navarro + A. Colaitis

###########################################################################################
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### What is below relate to running the file as a command line executable (very convenient)
if __name__ == "__main__":
    import sys
    from optparse import OptionParser    ### to be replaced by argparse
    from api_wrapper import api_onelevel
    from zrecast_wrapper import call_zrecast
    from netCDF4 import Dataset
    from myplot import getlschar, separatenames, readslices, adjust_length, whatkindfile, errormess
    from os import system
    from planetoplot import planetoplot
    from myscript import getparseroptions
    import numpy as np

    #############################
    ### Get options and variables
    parser = OptionParser() ; getparseroptions(parser) ; (opt,args) = parser.parse_args()
    if opt.file is None: 				errormess("I want to eat one file at least ! Use winds.py -f name_of_my_file. Or type winds.py -h")
    if opt.var is None and opt.anomaly is True: 	errormess("Cannot ask to compute anomaly if no variable is set")
    if opt.fref is not None and opt.operat is None: 	errormess("you must specify an operation when using a reference file")
    if opt.operat in ["+","-"] and opt.fref is None: 	errormess("you must specifiy a reference file when using inter-file operations")
    if opt.fref is not None and opt.operat is not None and opt.itp is not None: interpref=True
    else:   interpref=False

    #############################
    ### Get infos about slices
    zeslat  = readslices(opt.slat) ; zeslon  = readslices(opt.slon) ; zesvert = readslices(opt.svert) ; zestime = readslices(opt.stime)
    reffile = opt.fref
    zexaxis = [opt.xmin,opt.xmax] ; zeyaxis=[opt.ymin,opt.ymax]

    #############################
    ### 1. LOOP ON FILE LISTS TO BE PUT IN DIFFERENT FIGURES
    for i in range(len(opt.file)):

      zefiles = separatenames(opt.file[i])

      typefile = whatkindfile(Dataset(zefiles[0]))
      stralt = None
      if typefile in ["meso","mesoapi"]:          
          [lschar,zehour,zehourin] = getlschar ( zefiles[0] )
          if opt.var is None:  opt.var = ["HGT"] 
      else:                                       
          [lschar,zehour,zehourin] = ["",0,0]
          if opt.var is None:  opt.var = ["phisinit"]

      if opt.vmin is not None : zevmin  = opt.vmin[min(i,len(opt.vmin)-1)]
      else:                     zevmin = None
      if opt.vmax is not None : zevmax  = opt.vmax[min(i,len(opt.vmax)-1)]
      else:                     zevmax = None
      #print "vmin, zevmin", opt.vmin, zevmin ; print "vmax, zevmax", opt.vmax, zevmax

      #############################
      ### 2. LOOP ON VAR LISTS TO BE PUT IN DIFFERENT FIGURES
      for j in range(len(opt.var)):

        zevars = separatenames(opt.var[j])

        inputnvert = separatenames(opt.lvl)
        if np.array(inputnvert).size == 1:
            zelevel = float(inputnvert[0])
            ze_interp_levels = [-9999.]
        else:
            zelevel = -99.
            ze_interp_levels = np.linspace(float(inputnvert[0]),float(inputnvert[1]),float(inputnvert[2]))

        #########################################################
        ### Call Fortran routines for vertical interpolations ###      
        ######################################################### 
        if opt.itp is not None:
          #####
          ##### MESOSCALE : written by AS
          #####
          if typefile == "meso":
            if zelevel == 0. and opt.itp == 4:  zelevel = 0.010
            ### winds or no winds
            if opt.winds            :  zefields = 'uvmet'
            else                    :  zefields = ''
            ### var or no var
            if zefields == ''       :  zefields = opt.var[j] 
            else                    :  zefields = zefields + "," + opt.var[j]
            if opt.var2 is not None :  zefields = zefields + "," + opt.var2  
            ### call fortran routines
            for fff in range(len(zefiles)):
                newname = api_onelevel (  path_to_input   = '', \
                                               input_name      = zefiles[fff], \
                                               fields          = zefields, \
                                               interp_method   = opt.itp, \
                                               interp_level    = ze_interp_levels, \
                                               onelevel        = zelevel, \
                                               nocall          = opt.nocall )
                if fff == 0: zetab = newname 
                else:        zetab = np.append(zetab,newname)
            zefiles = zetab #; print zefiles
            zelevel = 0 ## so that zelevel could play again the role of nvert
          #####
          ##### GCM : written by AC
          #####
          elif typefile == "gcm":
            interpolated_files=""
            interpolated_files=call_zrecast(interp_mode=opt.itp,\
                    input_name=zefiles,\
                    fields=zevars,\
                    predifined=opt.intas)

            zefiles=interpolated_files
            if interpref:
               interpolated_ref=""
               interpolated_ref=call_zrecast(interp_mode=opt.itp,\
                    input_name=[opt.fref],\
                    fields=zevars,\
                    predifined=opt.intas)

               reffile=interpolated_ref[0]
          else:
            print "not supported"
            exit()

        #############
        ### Main call
        name = planetoplot (zefiles,level=int(zelevel),vertmode=opt.itp,\
                proj=opt.proj,back=opt.back,target=opt.tgt,stride=opt.ste,var=zevars,\
                colorb=opt.clb,winds=opt.winds,\
                addchar=lschar,interv=[zehour,zehourin],vmin=zevmin,vmax=zevmax,\
                tile=opt.tile,zoom=opt.zoom,display=opt.display,\
                hole=opt.hole,save=opt.save,\
                anomaly=opt.anomaly,var2=opt.var2,ndiv=opt.ndiv,\
                mult=opt.mult,zetitle=opt.zetitle,\
                slon=zeslon,slat=zeslat,svert=zesvert,stime=zestime,\
                outputname=opt.out,resolution=opt.res,\
                ope=opt.operat,fileref=reffile,minop=opt.vminope,maxop=opt.vmaxope,titleref=opt.titref,\
                invert_y=opt.inverty,xaxis=zexaxis,yaxis=zeyaxis,ylog=opt.logy,yintegral=opt.column,\
                blat=opt.blat,tsat=opt.tsat,flagnolow=opt.nolow)
        print 'DONE: '+name
        system("rm -f to_be_erased")
  
    #########################################################
    ### Generate a .sh file with the used command saved in it
    command = ""  
    for arg in sys.argv: command = command + arg + ' '
    #if typefile not in ["meso","mesoapi"]: name = 'pycommand'
    if opt.save is "gui": name = 'pycommand'
    f = open(name+'.sh', 'w')
    f.write(command)

    print "********** OPTIONS: ", opt
    print "********************************************************** END"