# |  (C) 2006-2019 Potsdam Institute for Climate Impact Research (PIK)
# |  authors, and contributors see CITATION.cff file. This file is part
# |  of REMIND and licensed under AGPL-3.0-or-later. Under Section 7 of
# |  AGPL-3.0, you are granted additional permissions described in the
# |  REMIND License Exception, version 1.0 (see LICENSE file).
# |  Contact: remind@pik-potsdam.de
### Function to create files with price mark-ups (needed for cm_fetaxscen 102 - 116, ADVANCE WP2 price elasticity runs)

create_ExogSameAsPrevious_CO2price_file<-function(gdx){
  
  library(luplot,quietly=TRUE,warn.conflicts =FALSE)
  library(lucode,quietly=TRUE,warn.conflicts =FALSE)
  require(remind,quietly = TRUE,warn.conflicts =FALSE)
  
  ############################# BASIC CONFIGURATION #############################
  
  #Define arguments that can be read from command line
  #  gdx <- "fulldata.gdx"
  #  readArgs("fulldata.gdx")
  
  ###############################################################################
  
  if (file.exists(gdx)) {
    pr <- reportPrices(gdx)
  } else {
    stop("No gdx file found - please provide gdx from reference BAU run")
  }
  
  #select right temporal/variable scope 
  pr <- pr[,,c( "Price|Carbon (US$2005/t CO2)")]
  #get rid of variable name so that it is not printed
  pr <- pr[,,1,drop=TRUE]
  
  #write out file for mark-ups applied on FE level
  write.magpie(pr[seq(1,11),,],"modules/45_carbonprice/ExogSameAsPrevious/input/p45_ExogSameAsPrevious_CO2_tax.cs4r", comment="** description: Carbon prices from previous run for INDC2030_CO2price_DEF runs \n*** unit: $2005/t CO2 \n*** file created with scripts/input/create_ExogSameAsPrevious_CO2price_file.R")
  
  
}