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server.R
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# in linux install: r-base-dev
if(!require(shiny,quietly = T)) {install.packages("shiny", dependencies=T,quiet = T); library(shiny,quietly = T)}
if(!require(shinyBS,quietly = T)) {install.packages("shinyBS", dependencies=T,quiet = T); library(shinyBS,quietly = T)}
if(!require(shinyAce,quietly = T)) {install.packages("shinyAce", dependencies=T,quiet = T); library(shinyAce,quietly = T)}
if(!require(shinyjs,quietly = T)) {install.packages("shinyjs", dependencies=T,quiet = T); library(shinyjs,quietly = T)}
if(!require(pracma,quietly = T)) {install.packages("pracma", dependencies=T,quiet = T); require(pracma,quietly = T)}
if(!require(stringr,quietly = T)) {install.packages("stringr", dependencies=T,quiet = T); library(stringr,quietly = T)}
if(!require(data.table,quietly = T)) {install.packages("data.table", dependencies=T,quiet = T); library(data.table,quietly = T)}
if(!require(rjson,quietly = T)) {install.packages("rjson", dependencies=T,quiet = T); library(rjson,quietly = T)}
#if(!require(Rcpp,quietly = T)) {install.packages("Rcpp",quiet = T); library(Rcpp,quietly = T)}
#if(!require(httpuv,quietly = T)) {install.packages("httpuv",quiet = T); library(httpuv,quietly = T)}
#if(!require(shinyjs,quietly = T)) {install.packages("shinyjs",quiet = T); library(shinyjs,quietly = T)}
#if(!require(shinythemes,quietly=T)) install.packages("shinythemes",quiet=T); library(shinythemes,quietly=T)
#if(!require(ggplot2,quietly = T)) install.packages("ggplot2",quiet = T); library(ggplot2,quietly = T)
source("tooltips.R")
source("global.R")
#source("generator.R")
# debounce <- function(expr, millis, env = parent.frame(), quoted = FALSE,
# domain = getDefaultReactiveDomain()) {
# force(millis)
# f <- exprToFunction(expr, env, quoted)
# label <- sprintf("debounce(%s)", paste(deparse(body(f)), collapse = "\n"))
# v <- reactiveValues(
# trigger = NULL,
# when = NULL # the deadline for the timer to fire; NULL if not scheduled
# )
# # Responsible for tracking when f() changes.
# observeEvent(f(), {
# # The value changed. Start or reset the timer.
# v$when <- Sys.time() + millis/1000
# }, ignoreNULL = FALSE)
# # This observer is the timer. It rests until v$when elapses, then touches
# # v$trigger.
# observe({
# if (is.null(v$when))
# return()
# now <- Sys.time()
# if (now >= v$when) {
# v$trigger <- runif(1)
# v$when <- NULL
# } else invalidateLater((v$when - now) * 1000, domain)
# })
# # This is the actual reactive that is returned to the user. It returns the
# # value of f(), but only invalidates/updates when v$trigger is touched.
# eventReactive(v$trigger, {
# f()
# }, ignoreNULL = FALSE)
# }
options(scipen=999)
options(shiny.maxRequestSize=1000*1024^2)
#gcinfo(TRUE) # for periodically showing garbage collection stats
#jsResetCode <- "shinyjs.reset = function() {history.go(0);}"
shinyServer(function(input,output,session) {
#=============== GLOBALS ===============================================
session_random <- sample(1000^2,1)
# .Platform$OS.type=="windows" or Sys.info()["sysname"]=="Windows"
files_path <- paste0("..//Temp//")
# files_path <- ifelse(.Platform$OS.type=="windows", paste0("..//Temp//"), ifelse(Sys.info()["nodename"]=="psyche05",paste0("..//Temp//"),paste0("~//skola//newbiodivine//") ))
new_programs_path <- paste0("..//biodivine-ctl//build//install//biodivine-ctl//bin//")
# new_programs_path <- ifelse(.Platform$OS.type=="windows", paste0("..//biodivine-ctl//build//install//biodivine-ctl//bin//"),
# ifelse(Sys.info()["nodename"]=="psyche05","..//biodivine-ctl//build//install//biodivine-ctl//bin//","~//skola//newbiodivine//"))
progressFileName <- paste0(files_path,"progress.",session_random,".txt")
file.create(progressFileName)
progressFile <- reactiveFileReader(100,session,progressFileName,readLines)
resultFileName <- paste0(files_path,"result.",session_random,".json")
file.create(resultFileName)
resultFile <- reactiveFileReader(1000,session,resultFileName,readLines)
configFileName <- paste0(files_path,"config.",session_random,".json")
file.create(configFileName)
session$onSessionEnded(function() {
for(i in c(progressFileName,resultFileName,configFileName)) if(file.exists(i)) file.remove(i)
stopApp() # very important for VM so the user will run everytime new and clean instance of the app
})
hide("save_current_model_file")
hide("save_result_file")
# hide("save_model_file")
# hide("save_prop_file")
loaded_prop_file <- reactiveValues(data=NULL,filedata=NULL,filename=NULL)
loaded_vf_file <- reactiveValues(data=NULL,filedata=NULL,filename=NULL)
loaded_ss_file <- reactiveValues(data=NULL,filedata=NULL,filename=NULL)
loaded_ps_file <- reactiveValues(data=NULL,filedata=NULL,filename=NULL)
stored_vf_files <- reactiveValues(data=list(),current=0,max=1)
stored_vf_current_params <- reactiveValues(data=list())
stored_vf_chosen <- reactiveValues(data=list())
stored_vf_parsed_data <- reactiveValues(data=list())
stored_ss_files <- reactiveValues(data=list(),current=0,max=1)
stored_ss_parsed_data <- reactiveValues(data=list())
stored_ps_files <- reactiveValues(data=list(),current=0,max=1)
stored_ps_current_formula <- reactiveValues(data=list())
stored_ps_parsed_data <- reactiveValues(data=list())
stored_ps_chosen <- reactiveValues(data=list())
vf_brushed <- reactiveValues(data=list(),click_counter=list())
ss_brushed <- reactiveValues(data=list(),click_counter=list())
ps_brushed <- reactiveValues(data=list(),click_counter=list())
param_ss_brushed <- reactiveValues(data=list(),click_counter=list())
vector_field_space <- reactiveValues(data=list(),globals=list())
transition_state_space<- reactiveValues(data=list(),globals=list())
param_state_space <- reactiveValues(data=list(),globals=list())
param_space <- reactiveValues(data=list(),globals=list())
#satisfiable_ps <- reactiveValues(data=list())
vector_field_clicked <- reactiveValues(data=list(),point=list(),old_point=list(),click_counter=list(),apply_to_all_click_counter=list(),apply_to_tss_click_counter=list())
state_space_clicked <- reactiveValues(data=list(),point=list(),old_point=list(),click_counter=list(),apply_to_all_click_counter=list())
param_ss_clicked <- reactiveValues(data=list(),point=list(),old_point=list(),click_counter=list(),apply_to_all_click_counter=list())
param_space_clicked <- reactiveValues(data=list(),point=list(),old_point=list(),click_counter=list(),apply_to_all_click_counter=list())
vf_chosen <- reactiveValues(data=NULL,max=1)
param_chosen <- reactiveValues(data=NULL,max=1)
#=============== TEST TAB ==============================================
# observeEvent(input$start_btn,{ # temporary
# if(input$start_btn != 0){
# #progress <<- shiny::Progress$new(session, min=1, max=30)
# system2("C://Program Files//R//R-3.1.2//bin//Rscript.exe",c("C://Users//User//skola//pracovny//R//test_of_pipe//cycle.R",">",progressFileName),stdout="",wait=F)
# #progress$set(message = "Runnnig...", detail = NULL)
# #on.exit(file.remove(progressFileName))
# }
# })
#
#
# output$text_area <- renderPrint({
# if(length(progressFile()) > 0) {
# progress$set(value = as.numeric(progressFile()[length(progressFile())]))
# if(length(progressFile()) > progressMaxLength)
# cat(paste0(progressFile()[(length(progressFile())-progressMaxLength+1):length(progressFile())],collapse="\n"))
# else
# cat(paste0(progressFile(),collapse="\n"))
# #on.exit(file.remove(progressFileName))
# }
# # if(length(progressFile() > 0))
# # for(i in 1:length(progressFile()))
# # cat(progressFile()[i],"\n")
# },width=100)
#=============== PROCESS SETTINGS TAB ==================================
#=======================================================================
observeEvent(input$process_run,{
if(!is.null(preloading_ss_file()$filedata) && input$process_run != 0) {
cat(Parameter_synthesis_started)
cat(Parameter_synthesis_started, file=progressFileName)
modelTempName <- paste0(files_path,"model.",session_random,".abst.bio")
writeLines(preloading_ss_file()$filedata,modelTempName)
propTempName <- paste0(files_path,"prop.",session_random,".ctl")
writeLines(loaded_prop_file$data,propTempName)
system2(paste0(new_programs_path,"combine"),c(modelTempName, propTempName), stdout=configFileName, stderr=progressFileName, wait=T)
# system2("java", c("-jar",paste0(java_programs_path,"combine.jar"), modelTempName, propTempName, ">", configFileName, "2>", progressFileName), wait=T)
file.remove(modelTempName,propTempName)
if(file.exists(configFileName) && length(readLines(configFileName)) > 0) {
cat("config file is created\n")
# cat("Config file is created\n",file=progressFileName,append=T)
updateButton(session,"process_run",style="default",disabled=F)
updateButton(session,"process_stop",style="danger",disabled=F)
# checker_path <- ifelse(.Platform$OS.type=="windows", paste0("..//biodivine-ctl//build//install//biodivine-ctl//bin//"),
# ifelse(Sys.info()["nodename"]=="psyche05","..//biodivine-ctl//build//install//biodivine-ctl//bin//",
# "/home/demon/skola/newbiodivine/json-ode-model/target/release/")) # it must be whole path or be a part of PATH
system2(paste0(new_programs_path,"biodivine-ctl"), c(configFileName,">",resultFileName,"2>",progressFileName), wait=F)
# cat("Process has started\n",file=progressFileName)
} else cat("\nError: some error occured, because no config file was created!\n")
}
})
observeEvent(input$process_stop,{
if(!is.null(preloading_ss_file()$filedata) && input$process_stop != 0) {
if(file.exists(progressFileName) && !is.null(progressFile()) && length(progressFile()) > 0 && !T %in% grepl("^!!DONE!!$",progressFile())) {
pid <- gsub("PID: ","",grep("^PID: [0-9]+$",progressFile(),value=T))
command <- ifelse(.Platform$OS.type=="windows", paste0("taskkill /f /pid ",pid), paste0("kill -9 ",pid))
system(command,wait=T)
cat(Parameter_synthesis_stopped)
cat(Parameter_synthesis_stopped, file=progressFileName)
updateButton(session,"process_stop",style="default",disabled=T)
updateButton(session,"process_run",style="success",disabled=F)
}
}
})
output$progress_output <- renderPrint({
if(file.exists(progressFileName) && !is.null(progressFile()) && length(progressFile()) > 0) {
# progress$set(value = as.numeric(progressFile()[length(progressFile())]))
# if(T %in% grepl("Model does not contain threshold",progressFile())) cat("chyba threshold\n")
# TEMPLATE: You have to use an exact threshold in propositions! Proposition: y > 8.0,
# if(T %in% grepl("You have to use an exact threshold in propositions! Proposition: [^,]+,",progressFile())) {
if(T %in% grepl("Missing thresholds: .*",progressFile())) {
missing_thr_message <- grep('Missing thresholds: .*',progressFile(),value=T)
missing_thr_list <- lapply(tstrsplit(gsub(" ","",sub("Missing thresholds:","",missing_thr_message)),";"),function(x) unlist(strsplit(sub(".*:","",x),",",fixed=T)))
names(missing_thr_list) <- sapply(tstrsplit(gsub(" ","",sub("Missing thresholds:","",missing_thr_message)),";"),function(x) sub(":.*","",x))
js_string <- paste0('confirm("',missing_thr_message,'! It will be added into model.");')
js_string <- paste0('confirm("',missing_thr_message,'!");')
session$sendCustomMessage(type='missThres', list(value = js_string, data = missing_thr_list))
}
if(T %in% grepl("^!!DONE!!$",progressFile())) {
updateButton(session,"process_stop",style="default",disabled=T)
updateButton(session,"add_result_plot", disabled=F)
js_string <- paste0('alert("Parameter synthesis done!");')
session$sendCustomMessage(type='paramSynthEnd', list(value = js_string))
}
# if(length(progressFile()) > progressMaxLength)
# cat(paste0(progressFile()[(length(progressFile())-progressMaxLength+1):length(progressFile())],collapse="\n"))
# else
cat(paste0(progressFile(),collapse="\n"))
}
})
observeEvent(input$missing_threshold_counter,{
if(input$missing_threshold) {
# Ok button was clicked
# # adds thresholds into approximated model
# data <- preloading_ss_file()$filedata
# for(i in 1:length(input$missing_threshold_data)) {
# line_id <- grep(paste0("THRES:",names(input$missing_threshold_data)[[1]]),gsub(" ","",data))
# data[[line_id]] <- paste0(data[[line_id]],",",paste0(input$missing_threshold_data[[1]],collapse = ","))
# }
# loaded_ss_file$filedata <- data
#
# # adds thresholds into original model + into model editor
# data <- preloading_vf_file()$filedata
# for(i in 1:length(input$missing_threshold_data)) {
# line_id <- grep(paste0("THRES:",names(input$missing_threshold_data)[[1]]),gsub(" ","",data))
# data[[line_id]] <- paste0(data[[line_id]],",",paste0(input$missing_threshold_data[[1]],collapse = ","))
# }
# loaded_vf_file$filedata <- data
# updateAceEditor(session,"model_input_area",value = paste(data,collapse="\n"))
#temporary
cat(Parameter_synthesis_stopped)
cat(Parameter_synthesis_stopped, file=progressFileName)
updateButton(session,"process_stop",style="default",disabled=T)
updateButton(session,"process_run",style="success",disabled=F)
} else {
# Cancel button was clicked
cat(Parameter_synthesis_stopped)
cat(Parameter_synthesis_stopped, file=progressFileName)
updateButton(session,"process_stop",style="default",disabled=T)
updateButton(session,"process_run",style="success",disabled=F)
}
})
#=============== PROPERTY INPUT TAB ====================================
#=======================================================================
# reaction on event of loading .ctl file into tool putting a loaded model into text field
# observeEvent(c(loaded_prop_file$data,input$reset_prop),{
# if(!is.null(loaded_prop_file$data)) {
# updateTextInput(session,"prop_input_area",value = paste(loaded_prop_file$data,collapse="\n"))
# }
# })
observeEvent(input$prop_input_area,{
loaded_prop_file$data <- strsplit(input$prop_input_area,"\n",fixed=T)[[1]]
if(!is.null(preloading_ss_file()$filedata)) updateButton(session,"process_run",style="success",disabled=F)
})
# observeEvent(input$accept_prop_changes,{
# if(!is.null(input$prop_input_area) && input$prop_input_area != "")
# loaded_prop_file$data <- strsplit(input$prop_input_area,"\n",fixed=T)[[1]]
# })
observeEvent(c(input$prop_file,input$reset_prop),{
if(!is.null(input$prop_file) && !is.null(input$prop_file$datapath)) {
# if(!is.null(loaded_prop_file$filename) && loaded_prop_file$filename != input$prop_file$datapath) {
# #session$reload()
# reset_globals()
# }
loaded_prop_file$filename <- input$prop_file$name
loaded_prop_file$data <- readLines(input$prop_file$datapath)
} else {
# initial example file (temporary)
loaded_prop_file$filename <- paste0(examples_dir,"//repressilator_2D//bistability.ctl")
loaded_prop_file$data <- readLines(loaded_prop_file$filename)
}
updateAceEditor(session,"prop_input_area",value = paste(loaded_prop_file$data,collapse="\n"))
# updateTextAreaInput(session,"prop_input_area",value = paste(loaded_prop_file$data,collapse="\n"))
})
output$save_prop_file <- downloadHandler(
filename = "property.ctl", #ifelse(!is.null(input$prop_file) && !is.null(input$prop_file$datapath), paste0(input$prop_file$datapath), "property.ctl"),
content = function(file) {
if(!is.null(loaded_prop_file$data)) writeLines(loaded_prop_file$data, file)
else writeLines("", file)
}
)
#=============== MODEL INPUT TAB =======================================
#=======================================================================
reset_globals <- function(i=NA) {
if(is.na(i)) {
for(i in vf_update()) reset_particular_global(i)
} else {
reset_particular_global(i)
}
}
reset_particular_global <- function(i) {
stored_vf_chosen$data[[stored_vf_files$current]] <- vf_update()[vf_update() != i]
# vf_chosen$data <- vf_chosen$data[vf_chosen$data != i]
# some kind of garbage collector would be very convenient in this phase
# either gc() or rm()
# rm(input[[paste0("vf_selector_x_",i)]], input[[paste0("vf_selector_y_",i)]]) #TODO: doplnit dalsie
# removeUI function
transition_state_space$data[[i]] <- NA
transition_state_space$globals[[i]] <- NA
state_space_clicked$data[[i]] <- NA
state_space_clicked$click_counter[[i]] <- NA
state_space_clicked$apply_to_all_click_counter[[i]] <- NA
state_space_clicked$old_point[[i]] <- NA
state_space_clicked$point[[i]] <- NA
ss_brushed$data[[i]] <- NA
ss_brushed$click_counter[[i]] <- NA
vector_field_space$data[[i]] <- NA
vector_field_space$globals[[i]] <- NA
vector_field_clicked$data[[i]] <- NA
vector_field_clicked$apply_to_all_click_counter[[i]] <- NA
vector_field_clicked$apply_to_tss_click_counter[[i]] <- NA
vector_field_clicked$click_counter[[i]] <- NA
vector_field_clicked$point[[i]] <- NA
vector_field_clicked$old_point[[i]] <- NA
vf_brushed$data[[i]] <- NA
vf_brushed$click_counter[[i]] <- NA
print(gc())
}
# reaction on event of loading .bio file into tool putting a loaded model into text field
# observeEvent(c(loaded_vf_file$filedata,input$reset_model),{
# if(!is.null(loaded_vf_file$filedata)) {
# updateTextInput(session,"model_input_area",value = paste(loaded_vf_file$filedata,collapse="\n"))
# }
# })
observeEvent(input$accept_model_changes,{
if(!is.null(input$model_input_area) && input$model_input_area != "") {
the_lines <- strsplit(input$model_input_area,"\n",fixed=T)[[1]]
its_ok <- F
lines <- the_lines[which(the_lines!="")]
name <- "[a-zA-Z][a-zA-Z0-9_]*"
rnum <- "[+-]?([0-9]*[.])?[0-9]+" # TODO: overit "[+-]?(([1-9][0-9]*)|(0))([.][0-9]+)?"
znum <- "[0-9]+"
line_id <- which(grepl(paste0("^VARS:",name,"(,",name,")*$"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > 1) cat("'VARS:' line is missing or duplicated or contains syntax error!\n",file=progressFileName)
else {
vars_num <- length(strsplit(gsub(" ","",sub("^VARS:","",lines[line_id])),",")[[1]])
lines <- lines[-line_id]
p_item <- paste0(name,",",rnum,",",rnum)
line_id <- which(grepl(paste0("^PARAMS:",p_item,"(;",p_item,")*$"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > 1) cat("'PARAMS:' line is missing or duplicated or contains syntax error!\n",file=progressFileName)
else {
lines <- lines[-line_id]
line_id <- which(grepl(paste0("^THRES:",name,":",rnum,"(,",rnum,")+$"), gsub(" ","",lines)) )
if(length(line_id) != vars_num) cat("'THRES:' lines contain syntax error or there is different number of them than variables!\n",file=progressFileName)
else {
lines <- lines[-line_id]
# fname <- "" # TODO:
# func <- paste0(fname,"\\(",name,",",rnum,"(,",rnum,"){1:3}\\)")
line_id <- which(grepl(paste0("^EQ:",name,"=",".+"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > vars_num) cat("'EQ:' lines contain syntax error or there is different number of them than variables!\n",file=progressFileName)
else {
lines <- lines[-line_id]
line_id <- which(grepl("(^CONSTS:|^VAR_POINTS:)", gsub(" ","",lines)) )
if(length(lines) != length(line_id)) cat("Line [",which(the_lines %in% ifelse(length(line_id)==0,lines,lines[-line_id])),"] is undefined or contains syntax error!\n",file=progressFileName)
else {
line_id <- which(grepl(paste0("^CONSTS:"), gsub(" ","",lines)) )
if(length(line_id) > 1) cat("'CONSTS:' line is duplicated!\n",file=progressFileName)
else if(length(line_id) == 1) {
p_item <- paste0(name,",",rnum)
line_id <- which(grepl(paste0("^CONSTS:",p_item,"(;",p_item,")*$"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > 1) cat("'CONSTS:' line contains syntax error!\n",file=progressFileName)
else {
lines <- lines[-line_id]
line_id <- which(grepl(paste0("^VAR_POINTS:"), gsub(" ","",lines)) )
if(length(line_id) > 1) cat("'VAR_POINTS:' line is duplicated!\n",file=progressFileName)
else if(length(line_id) == 1) {
p_item <- paste0(name,":",znum,",",znum)
line_id <- which(grepl(paste0("^VAR_POINTS:",p_item,"(;",p_item,"){",0,",",vars_num-1,"}$"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > 1) cat("'VAR_POINTS:' line contains syntax error or contains more items than variables!\n",file=progressFileName)
else its_ok <- T
} else its_ok <- T # no VAR_POINTS line
}
} else {
# no CONSTS line
line_id <- which(grepl(paste0("^VAR_POINTS:"), gsub(" ","",lines)) )
if(length(line_id) > 1) cat("'VAR_POINTS:' line is duplicated!\n",file=progressFileName)
else if(length(line_id) == 1) {
p_item <- paste0(name,":",znum,",",znum)
line_id <- which(grepl(paste0("^VAR_POINTS:",p_item,"(;",p_item,"){",0,",",vars_num-1,"}$"), gsub(" ","",lines)) )
if(length(line_id) == 0 || length(line_id) > 1) cat("'VAR_POINTS:' line contains syntax error or contains more items than variables!\n",file=progressFileName)
else its_ok <- T
} else its_ok <- T # no VAR_POINTS line and no CONSTS line
}
}
}
}
}
}
# grepl(paste0("^VARS:",name,"(,",name,")*$"), gsub(" ","",lines))
# grepl(paste0("^PARAMS:",p_item,"(;",p_item,")*$"), gsub(" ","",lines))
# grepl(paste0("^THRES:",name,":",rnum,"(,",rnum,")+$"), gsub(" ","",lines))
# grepl(paste0("^EQ:",name,"=",rnum,"(,",rnum,")+$"), gsub(" ","",lines))
if(its_ok) {
cat("Syntax of model is good ;) You may proceed with generating approximation.",file=progressFileName)
loaded_vf_file$filedata <- the_lines
}
}
})
observeEvent(input$model_input_area,{
if(!identical(loaded_vf_file$filedata,strsplit(input$model_input_area,"\n",fixed=T)[[1]])) {
loaded_vf_file$filedata <- strsplit(input$model_input_area,"\n",fixed=T)[[1]]
updateButton(session,"generate_abstraction", style="success", disabled=F)
}
})
observeEvent(c(input$vf_file,input$reset_model),{
cat(Starting_advice, file=progressFileName)
if(!is.null(input$vf_file) && !is.null(input$vf_file$datapath)) {
# if(!is.null(loaded_vf_file$filename) && loaded_vf_file$filename != input$vf_file$datapath) {
# #session$reload()
# reset_globals()
# }
loaded_vf_file$filename <- input$vf_file$name
loaded_vf_file$filedata <- readLines(input$vf_file$datapath)
} else {
# initial example file (temporary)
loaded_vf_file$filename <- paste0(examples_dir,"//repressilator_2D//model_2D_1P_100R.bio")
loaded_vf_file$filedata <- readLines(loaded_vf_file$filename)
}
updateAceEditor(session,"model_input_area",value = paste(loaded_vf_file$filedata,collapse="\n"))
# updateTextAreaInput(session,"model_input_area",value = paste(loaded_vf_file$filedata,collapse="\n"))
})
output$save_model_file <- downloadHandler(
filename = "model.bio", #ifelse(!is.null(loaded_vf_file$filename), paste0(loaded_vf_file$filename), "model.bio"),
content = function(file) {
if(!is.null(loaded_vf_file$filedata)) writeLines(loaded_vf_file$filedata, file)
else writeLines("", file)
}
)
output$save_current_model_file <- downloadHandler(
filename = "model.bio", #ifelse(!is.null(preloading_vf_file()), paste0(preloading_vf_file()$filepath), "model.bio"),
content = function(file) {
if(!is.null(preloading_vf_file())) writeLines(preloading_vf_file()$filedata, file)
else writeLines("", file)
}
)
#=======================================================================
observeEvent(input$generate_abstraction,{
if(input$generate_abstraction != 0) {
# loaded_ss_file$filedata <- readLines(paste0(examples_dir,"//model_2D_1P_400R.abst.bio"))
cat(Approximation_started)
cat(Approximation_started, file=progressFileName)
withProgress({
model_temp_name <- paste0(files_path,"model.",session_random,".bio")
writeLines(loaded_vf_file$filedata,model_temp_name)
abstracted_model_temp_name <- paste0(files_path,"model.",session_random,".abst.bio")
system2(paste0(new_programs_path,"tractor"),c(model_temp_name,
ifelse(input$fast_approximation,"true","false"),
ifelse(input$thresholds_cut,"true","false")),
stdout = abstracted_model_temp_name,
stderr = progressFileName, wait=T)
# system2("java", c("-jar",paste0(java_programs_path,"tractor.jar"), model_temp_name,
# ifelse(input$fast_approximation,"true","false"),
# ifelse(input$thresholds_cut,"true","false"),
# ">", abstracted_model_temp_name,
# "2>",progressFileName), wait=T)
file.remove(c(model_temp_name))
if(file.exists(abstracted_model_temp_name) && length(readLines(abstracted_model_temp_name)) > 0) {
loaded_ss_file$filename <- abstracted_model_temp_name
loaded_ss_file$filedata <- readLines(abstracted_model_temp_name)
file.remove(abstracted_model_temp_name)
cat(Approximation_finished)
cat(Approximation_finished, file=progressFileName,append=T)
updateButton(session,"generate_abstraction",style="default",disabled=F)
updateButton(session,"process_run",style="success",disabled=F)
} else {
cat(Approximation_error)
cat(Approximation_error, file=progressFileName,append=T)
}
}, message=Approximation_running, value=0.5)
}
})
# observeEvent(input$state_space_file,{
# if(!is.null(input$state_space_file) && !is.null(input$state_space_file$datapath)) {
# loaded_ss_file$filedata <- readLines(input$state_space_file$datapath)
# } else {
# # initial example file (temporary)
# if(!is.null(loaded_vf_file$filename) && loaded_vf_file$filename == paste0(examples_dir,"//model_2D_1P_100R.bio"))
# loaded_ss_file$filedata <- paste0(examples_dir,"//model_2D_1P_400R.ss.json")
# else
# loaded_ss_file$filedata <- NULL
# }
# })
#===================== MODEL EXPLORER ==================================
#=============== LOADING OF FILES ======================================
#=======================================================================
output$model_help_text <- renderUI({
if(stored_ss_files$current != 0) {
helpText(paste0(Explorer_experiment_label, stored_vf_files$current," (",stored_vf_files$data[[stored_vf_files$current]]$timestamp,")"))
}
})
manage_model_experiments <- observe({
filedata <- loaded_ss_file$filedata
if(!is.null(filedata)) {
# Here will be core of managing switching between experiments models
if(stored_ss_files$max == 1 || !identical(filedata,stored_ss_files$data[[stored_ss_files$max-1]]$filedata)) {
stored_ss_files$data[[stored_ss_files$max]] <- list(filedata=filedata, filepath=loaded_ss_file$filename, timestamp=Sys.time())
stored_vf_files$data[[stored_vf_files$max]] <- list(filedata=loaded_vf_file$filedata, filepath=loaded_vf_file$filename, timestamp=Sys.time())
loaded_ss_file$filedata <- NULL # on this depends a possibility of loading last experiment for ever
if(stored_ss_files$max==1) {
stored_ss_files$current <- stored_ss_files$max
stored_vf_files$current <- stored_vf_files$max
updateButton(session,"model_del",style="default",disabled=F)
updateButton(session,"add_vf_plot",style="default",disabled=F)
show("save_current_model_file")
} else
updateButton(session,"model_next",style="success",disabled=F)
stored_ss_files$max <- stored_ss_files$max + 1
stored_vf_files$max <- stored_vf_files$max + 1
}
}
})
manage_model_next <- observeEvent(input$model_next,{
# reset_globals()
stored_vf_current_params$data[[stored_vf_files$current]] <- current_param_sliders()
stored_ss_files$current <- stored_ss_files$current + 1
stored_vf_files$current <- stored_vf_files$current + 1
updateButton(session,"model_prev",style="default",disabled=F)
if(stored_ss_files$current+1 == stored_ss_files$max) {
updateButton(session,"model_next",style="default",disabled=T)
} else {
# updateButton(session,"model_next",style="default")
}
})
manage_model_prev <- observeEvent(input$model_prev,{
# reset_globals()
stored_vf_current_params$data[[stored_vf_files$current]] <- current_param_sliders()
stored_ss_files$current <- stored_ss_files$current - 1
stored_vf_files$current <- stored_vf_files$current - 1
updateButton(session,"model_next",style="default",disabled=F)
if(stored_ss_files$current == 1) {
updateButton(session,"model_prev",style="default",disabled=T)
} else {
# updateButton(session,"model_prev",style="default")
}
})
manage_model_del <- observeEvent(input$model_del,{
if(stored_ss_files$current > 0) {
reset_globals()
stored_ss_files$max <- stored_ss_files$max - 1
stored_ss_files$data[[stored_ss_files$current]] <- NULL
stored_ss_parsed_data$data[[stored_ss_files$current]] <- NULL
stored_vf_files$max <- stored_vf_files$max - 1
stored_vf_files$data[[stored_vf_files$current]] <- NULL
stored_vf_current_params$data[[stored_vf_files$current]] <- NULL
stored_vf_parsed_data$data[[stored_vf_files$current]] <- NULL
stored_vf_chosen$data[[stored_vf_files$current]] <- NULL
if(stored_ss_files$current == stored_ss_files$max) {
stored_ss_files$current <- stored_ss_files$current - 1
stored_vf_files$current <- stored_vf_files$current - 1
if(stored_ss_files$current == 0) {
updateButton(session,"model_del",style="default",disabled=T)
updateButton(session,"add_vf_plot",style="default",disabled=T)
hide("save_current_model_file")
}
}
if(stored_ss_files$current == 1) {
updateButton(session,"model_prev",style="default",disabled=T)
}
if(stored_ss_files$current+1 == stored_ss_files$max) {
updateButton(session,"model_next",style="default",disabled=T)
}
}
})
preloading_vf_file <- eventReactive(c(stored_vf_files$current),{
if(stored_vf_files$current != 0)
return(stored_vf_files$data[[stored_vf_files$current]])
else
return(NULL)
})
preloading_ss_file <- eventReactive(c(stored_ss_files$current),{
if(stored_ss_files$current != 0)
return(stored_ss_files$data[[stored_ss_files$current]])
else
return(NULL)
})
loading_vf_file <- reactive({
if(!is.null(preloading_vf_file())) {
if(length(stored_vf_parsed_data$data) >= stored_vf_files$current && !is.null(stored_vf_parsed_data$data[[stored_vf_files$current]])) {
return(stored_vf_parsed_data$data[[stored_vf_files$current]])
}
if(length(preloading_vf_file()$filedata) != 0) {
biofile <- preloading_vf_file()$filedata
# VARIABLES
# result is vector of VAR NAMES
var_line <- biofile[which(str_detect(biofile,"^VARS:"))]
if(length(var_line) > 0) {
var_names <- as.list(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",var_line)),",")[[1]] ) )
names(var_names) <- var_names
} else return(NULL)
# CONSTANTS
# result is named list of CONST VALUEs
const_line <- biofile[which(str_detect(biofile,"^CONSTS:"))]
if(length(const_line) > 0) {
#consts <- str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",const_line)),";")[[1]]),",")
consts <- lapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",const_line)),";")[[1]]),","),function(x) x[2] )
names(consts) <- sapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",const_line)),";")[[1]]),","),function(x) x[1] )
} else consts <- NULL
# PARAMETERS
# result is names list of pairs PARAM FIRST VALUE and PARAM SECOND VALUE
param_line <- biofile[which(str_detect(biofile,"^PARAMS:"))]
if(length(param_line) > 0) {
#params <- str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),",")
params <- lapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),","),function(x) c(x[2],x[3]) )
names(params) <- sapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),","),function(x) x[1] )
} else params <- NULL
# THRESHOLDS
# result is names list of THRES VALUEs
thr_lines <- gsub("[{}]","_",gsub("[ \t]","",biofile[which(str_detect(biofile,"^THRES:"))]))
if(length(thr_lines) > 0 && length(thr_lines) == length(var_names)) {
thres <- sapply(str_split(thr_lines,":"),function(x) str_split(x[3],",") )
names(thres) <- sapply(str_split(thr_lines,":"),function(x) x[2] )
} else return(NULL)
# EQUATIONS
# result is named list of EQUATIONs
eq_lines <- gsub("^.*:","",gsub("[{}]","_",gsub("[ \t]","",biofile[which(str_detect(biofile,"^EQ:"))])))
if(length(eq_lines) > 0 && length(eq_lines) == length(var_names)) {
eqs <- lapply(str_split(eq_lines,"="),function(x) x[2] )
names(eqs) <- sapply(str_split(eq_lines,"="),function(x) x[1] )
for(e in 1:length(eqs)) {
eq <- eqs[[e]]
names <- strsplit(eq,"[-+*,() \t]+")[[1]]
signs <- strsplit(eq,"[^-+*,() \t]+")[[1]]
names <- sapply(names,function(x) ifelse(!is.null(var_names[[x]]) || !is.null(consts[[x]]) || !is.null(params[[x]]), paste0("ip$",x), x))
new_eq <- ""
if(names[1] == "") {
if(length(names) == length(signs)) {
for(i in 1:length(names)) new_eq <- paste0(new_eq,names[i],signs[i])
} else {
new_eq <- names[1]
for(i in 1:min(length(signs),length(names))) new_eq <- paste0(new_eq,signs[i],names[i+1])
}
} else {
if(length(names) == length(signs)) {
for(i in 1:length(names)) new_eq <- paste0(new_eq,signs[i],names[i])
} else {
new_eq <- signs[1]
for(i in 1:min(length(signs),length(names))) new_eq <- paste0(new_eq,names[i],signs[i+1])
}
}
eqs[[e]] <- paste0("function(ip) ",new_eq)
}
} else return(NULL)
ranges <- lapply(thres, function(x) range(as.numeric(x)))
names(ranges) <- var_names
# setting of GLOBALS
list_of_names <<- as.list(c(var_names, "Choose"=empty_sign))
funcs <<- list()
for(x in unlist(var_names)) {
funcs[[x]] <<- parse(text=eqs[[x]])
}
# list(
stored_vf_parsed_data$data[[stored_vf_files$current]] <- list(
vars=var_names,
consts=consts,
params=params,
thres=thres,
eqs=eqs,
ranges=ranges
)
return(stored_vf_parsed_data$data[[stored_vf_files$current]])
} else return(NULL)
} else return(NULL)
})
loading_ss_file <- reactive({
if(!is.null(preloading_ss_file())) {
if(length(stored_ss_parsed_data$data) >= stored_ss_files$current && !is.null(stored_ss_parsed_data$data[[stored_ss_files$current]])) {
return(stored_ss_parsed_data$data[[stored_ss_files$current]])
}
if(length(preloading_ss_file()$filedata) != 0) {
biofile <- preloading_ss_file()$filedata
# VARIABLES
# result is vector of VAR NAMES
var_line <- biofile[which(str_detect(biofile,"^VARS:"))]
if(length(var_line) > 0) {
var_names <- as.list(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",var_line)),",")[[1]] ) )
names(var_names) <- var_names
} else return(NULL)
# PARAMETERS
# result is names list of pairs PARAM FIRST VALUE and PARAM SECOND VALUE
param_line <- biofile[which(str_detect(biofile,"^PARAMS:"))]
if(length(param_line) > 0) {
#params <- str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),",")
params <- lapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),","),function(x) c(as.numeric(x[2]),as.numeric(x[3])))
names(params) <- sapply(str_split(gsub("[{}]","_",str_split(gsub("[ \t]","",gsub("^.*:","",param_line)),";")[[1]]),","),function(x) x[1] )
} else params <- NULL
# THRESHOLDS
# result is names list of THRES VALUEs
thr_lines <- gsub("[{}]","_",gsub("[ \t]","",biofile[which(str_detect(biofile,"^THRES:"))]))
if(length(thr_lines) > 0 && length(thr_lines) == length(var_names)) {
thres <- sapply(str_split(thr_lines,":"),function(x) str_split(x[3],",") )
thres <- lapply(thres,as.numeric)
names(thres) <- sapply(str_split(thr_lines,":"),function(x) x[2] )
} else return(NULL)
# EQUATIONS
# result is named list of EQUATIONs
eq_lines <- gsub("^.*:","",gsub("[{}]","_",gsub("[ \t]","",biofile[which(str_detect(biofile,"^EQ:"))])))
if(length(eq_lines) > 0 && length(eq_lines) == length(var_names)) {
eqs <- lapply(str_split(eq_lines,"="),function(x) x[2] )
names(eqs) <- sapply(str_split(eq_lines,"="),function(x) x[1] )
for(e in 1:length(eqs)) {
eq <- eqs[[e]]
names <- strsplit(eq,"[-+*,() \t]+")[[1]]
signs <- strsplit(eq,"[^-+*,() \t]+")[[1]]
names <- sapply(names,function(x) ifelse(!is.null(var_names[[x]]) || !is.null(params[[x]]), paste0("ip$",x), x))
new_eq <- ""
if(names[1] == "") {
if(length(names) == length(signs)) {
for(i in 1:length(names)) new_eq <- paste0(new_eq,names[i],signs[i])
} else {
new_eq <- names[1]
for(i in 1:min(length(signs),length(names))) new_eq <- paste0(new_eq,signs[i],names[i+1])
}
} else {
if(length(names) == length(signs)) {
for(i in 1:length(names)) new_eq <- paste0(new_eq,signs[i],names[i])
} else {
new_eq <- signs[1]
for(i in 1:min(length(signs),length(names))) new_eq <- paste0(new_eq,names[i],signs[i+1])
}
}
# change of format 'Approx(x)([1,2],..,[3,4])' into 'Approx(x,list(c(1,2),..,c(3,4))'
new_eq <- gsub("\\]\\)","\\)\\)\\)",gsub("\\],\\[","\\),c\\(",gsub("\\)\\(\\[",",list\\(c\\(",new_eq)))
eqs[[e]] <- paste0("function(ip) ",new_eq)
}
} else return(NULL)
ranges <- lapply(thres, function(x) range(as.numeric(x)))
names(ranges) <- var_names
# setting of GLOBALS
funcs_abst <<- list()
for(x in unlist(var_names)) {
funcs_abst[[x]] <<- parse(text=eqs[[x]])
}
stored_ss_parsed_data$data[[stored_ss_files$current]] <- list(
var_names=var_names,
params_num=length(params),
param_names=names(params),
params=params,
thr=thres,
eqs=eqs,
ranges=ranges
)
return(stored_ss_parsed_data$data[[stored_ss_files$current]])
} else return(NULL)
} else return(NULL)
})
#=============== SETTING OF WIDGETS =======================================
#==========================================================================
output$param_sliders_bio <- renderUI({
if(!is.null(loading_vf_file()) && !is.null(loading_vf_file()$params)) {
lapply(1:length(loading_vf_file()$params), function(i) {
print("setter")
label <- paste0(Explorer_parameter_label,names(loading_vf_file()$params)[i])
name <- paste0("param_slider_vf_",stored_vf_files$current,"_",i)
values <- c(min(as.numeric(loading_vf_file()$params[[i]])),max(as.numeric(loading_vf_file()$params[[i]])))
# selected_value <- ifelse(!is.null(input[[name]]), current_param_sliders()[[i]],
# ifelse(isempty(preloading_vf_file()$data$current_param_sliders), ((values[2]-values[1])*0.1),
# preloading_vf_file()$data$current_param_sliders[[i]]))
selected_value <- ifelse(length(stored_vf_current_params$data) < stored_vf_files$current || isempty(stored_vf_current_params$data[[stored_vf_files$current]]),
(values[2]-values[1])*0.1,
stored_vf_current_params$data[[stored_vf_files$current]][[i]])
fluidRow(
column(12,
tags$div(title=Explorer_parameter_tooltip,
numericInput(name,label=label,min=values[1],max=values[2],value=selected_value,step=((values[2]-values[1])/1000)))
#,sliderInput(paste0("num_",name),NULL,min=values[1],max=values[2],value=((values[2]-values[1])*0.1),step=((values[2]-values[1])/1000))
)
)
})
}
})
current_param_sliders <- reactive({
lapply(1:length(loading_vf_file()$params), function(i) input[[paste0("param_slider_vf_",stored_vf_files$current,"_",i)]])
})
# update_param_sliders <- observe({
# if(!is.null(loading_vf_file())) {
# for(i in 1:length(loading_vf_file()$params)) {
# change <- input[[paste0("param_slider_vf_",i)]]
# updateSliderInput(session,paste0("num_param_slider_vf_",i),value=change)
# print("changing slider\n")
# }
# }
# })
# update_param_numerics <- observe({
# if(!is.null(loading_vf_file())) {
# for(i in 1:length(loading_vf_file()$params)) {
# change <- input[[paste0("num_param_slider_vf_",i)]]
# updateNumericInput(session,paste0("param_slider_vf_",i),value=change)
# print("changing numeric\n")
# }
# }
# })
# output$param_sliders <- renderUI({
# if(!is.null(loading_ss_file()) && !is.null(loading_ss_file()$params)) {
# lapply(0:(loading_ss_file()$params_num-1), function(i) {
# label <- paste0("parameter ",names(loading_vf_file()$params)[i+1])
# name <- paste0("param_slider_",i+1)
# values <- c(min(as.numeric(loading_ss_file()$params[[paste0("V",2*i+1)]]),na.rm=T),max(as.numeric(loading_ss_file()$params[[paste0("V",2*i+2)]]),na.rm=T))
# numericInput(name,label=label,min=values[1],max=values[2],value=((values[2]-values[1])*0.1),step=((values[2]-values[1])/1000))
# #sliderInput(name,label=label,min=values[1],max=values[2],value=c(values[1],values[2]),step=((values[2]-values[1])/1000))
# })
# }
# })
output$selector <- renderUI({
if(!is.null(loading_vf_file())) {
variables <- loading_vf_file()$vars
lapply(vf_update(), function(i) {
idx <- paste0("vf_selector_x_",i)
labelx <- paste0(Explorer_horizontal_label)
choicesx <- list_of_names
selectedx <- ifelse(!is.null(input[[paste0("vf_selector_x_",i)]]), input[[paste0("vf_selector_x_",i)]], #empty_sign)
variables[[1]])
idy <- paste0("vf_selector_y_",i)
labely <- paste0(Explorer_vertical_label)
choicesy <- list_of_names
selectedy <- ifelse(!is.null(input[[paste0("vf_selector_y_",i)]]), input[[paste0("vf_selector_y_",i)]], #empty_sign)
ifelse(length(variables) > 1, variables[[2]], variables[[1]]))
fluidRow(
# column(2,
# helpText(paste0("Plot no. ",i))
# ),
column(5,
tags$div(title=Explorer_horizontal_tooltip,
selectInput(idx, labelx, choicesx, selectedx))
),
column(5,
tags$div(title=Explorer_vertical_tooltip,
selectInput(idy, labely, choicesy, selectedy))
),
column(2,
tags$div(title=Explorer_cancel_tooltip,
bsButton(paste0("cancel_vf_",i), Explorer_cancel_label)),
tags$div(title=Explorer_hide_tooltip,
checkboxInput(paste0("hide_vf_",i), Explorer_hide_label, ifelse(!is.null(input[[paste0("hide_vf_",i)]]),input[[paste0("hide_vf_",i)]],F)))
# bsButton(paste0("hide_vf_",i), type="toggle", "hide", value=ifelse(!is.null(input[[paste0("hide_vf_",i)]]),input[[paste0("hide_vf_",i)]],F))
)
)
})
}
})
# observe({
# if(!is.null(loading_vf_file())) {
# for(i in vf_update()) {
# if(!is.null((input[[paste0("hide_vf_",i)]])))
# if(input[[paste0("hide_vf_",i)]]) updateButton(session,paste0("hide_vf_",i), label="show")
# else updateButton(session,paste0("hide_vf_",i), label="hide")
# }
# }
# })
# observer caring for hiding plot if some of selectors is invalidated
observe({
if(!is.null(loading_vf_file())) {
for(i in vf_update()) {
if(!is.null(input[[paste0("vf_selector_x_",i)]]) && input[[paste0("vf_selector_x_",i)]] != empty_sign &&
!is.null(input[[paste0("vf_selector_y_",i)]]) && input[[paste0("vf_selector_y_",i)]] != empty_sign)
#(length(loading_vf_file()$vars) == 1 || !is.null(input[[paste0("vf_selector_y_",i)]]) && input[[paste0("vf_selector_y_",i)]] != empty_sign))
next #updateCheckboxInput(session,paste0("hide_vf_",i),value=F)
# updateButton(session,paste0("hide_vf_",i), disabled=F)
else
updateCheckboxInput(session,paste0("hide_vf_",i),value=T)
# updateButton(session,paste0("hide_vf_",i), disabled=T)
}
}
})
# observer caring for showing last plot after selector(s) is(are) properly selected
observe({
if(!is.null(loading_vf_file())) {
i <- vf_update()[length(vf_update())]
if(!is.null(input[[paste0("vf_selector_x_",i)]]) && input[[paste0("vf_selector_x_",i)]] != empty_sign &&
!is.null(input[[paste0("vf_selector_y_",i)]]) && input[[paste0("vf_selector_y_",i)]] != empty_sign)
#(length(loading_vf_file()$vars) == 1 || !is.null(input[[paste0("vf_selector_y_",i)]]) && input[[paste0("vf_selector_y_",i)]] != empty_sign))
updateCheckboxInput(session,paste0("hide_vf_",i),value=F)
# updateButton(session,paste0("hide_vf_",i), label="hide", value=F)
}
})
# observer caring for canceling a plot
observe({
if(!is.null(loading_vf_file())) {
for(i in vf_update()) {
if(!is.null(input[[paste0("cancel_vf_",i)]]) && input[[paste0("cancel_vf_",i)]] > 0) {
reset_globals(i)
}
}
}
})
# observer providing new selector(s) and cancel button and hide checkbox after 'add plot' button is clicked
observeEvent(input$add_vf_plot,{
if(!is.null(loading_vf_file())) {
# very important initialisation of unzoom button click counters
vf_brushed$click_counter[[vf_chosen$max]] <- -1
ss_brushed$click_counter[[vf_chosen$max]] <- -1
vector_field_clicked$old_point[[vf_chosen$max]] <- NA
vector_field_clicked$click_counter[[vf_chosen$max]] <- -1
vector_field_clicked$apply_to_all_click_counter[[vf_chosen$max]] <- -1
vector_field_clicked$apply_to_tss_click_counter[[vf_chosen$max]] <- -1
state_space_clicked$old_point[[vf_chosen$max]] <- NA
state_space_clicked$click_counter[[vf_chosen$max]] <- -1
state_space_clicked$apply_to_all_click_counter[[vf_chosen$max]] <- -1
vector_field_space$globals[[vf_chosen$max]] <- NA
transition_state_space$globals[[vf_chosen$max]] <- NA
stored_vf_chosen$data[[stored_vf_files$current]] <- c(vf_update(),vf_chosen$max)
# vf_chosen$data <- c(vf_chosen$data,vf_chosen$max)
vf_chosen$max <- vf_chosen$max + 1
}
})
vf_update <- reactive({
if(length(stored_vf_chosen$data) < stored_vf_files$current) return(list())
else return(stored_vf_chosen$data[[stored_vf_files$current]])
# return(vf_chosen$data)
})