Upload 2 files

server.R

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+server <- function(input, output, session) {
+  # Reactive variable to store the original file content
+  originalFileContent <- reactiveVal()
+  
+  # Observe file upload
+  observeEvent(input$file1, {
+    req(input$file1)
+    # Read the file content
+    fileContent <- readLines(input$file1$datapath)
+    # Store the original file content
+    originalFileContent(fileContent)
+    # Update Ace editor with file content
+    updateAceEditor(session, "code", value = paste(fileContent, collapse = "\n"), theme = "monokai")
+  })
+  
+  # Function to generate YAML header
+  generate_yaml <- function() {
+    yaml_header <- c(
+      "---",
+      paste0("author: ", input$author),
+      paste0("date: ", if(input$date_type == 'custom') {input$date} else {'"`r Sys.Date()`"'}),
+      paste0("description: ", input$description),
+      "format:",
+      "  html:",
+      paste0("    highlight-style: ", input$highlight_style),
+      paste0("    theme: ", input$theme),
+      paste0("    toc: ", ifelse(input$toc, "true", "false")),
+      "    code-fold: true",
+      paste0("    file: ", tools::file_path_sans_ext(input$file1$name), ".", tools::file_ext(input$file1$name)),
+      paste0("    title: ", input$title),
+      paste0('    subtitle: "', input$subtitle, '"')
+    )
+    
+    if (input$`toc-float`) {
+      yaml_header <- c(yaml_header,
+                       "    toc_float:",
+                       "      collapsed: true",
+                       "      smooth_scroll: true")
+    }
+    
+    yaml_header <- c(yaml_header, "---")
+    
+    return(yaml_header)
+  }
+  
+  
+  # Observe generate button
+  observeEvent(input$generate, {
+    # Generate YAML header
+    yaml_header <- generate_yaml()
+    # Combine YAML header and original file content
+    new_fileContent <- c(yaml_header, originalFileContent())
+    # Update Ace editor with new file content
+    updateAceEditor(session, "code", value = paste(new_fileContent, collapse = "\n"))
+  })
+  
+  # Download handler
+  output$Download <- downloadHandler(
+    
+    filename = function() {
+      paste(tools::file_path_sans_ext(input$file1$name), ".", tools::file_ext(input$file1$name), sep = "")
+    },
+    content = function(file) {
+      # Generate YAML header
+      yaml_header <- generate_yaml()
+      # Combine YAML header and original file content
+      new_fileContent <- c(yaml_header, originalFileContent())
+      # Write the new file content to the file
+      writeLines(new_fileContent, file)
+    }
+  )
+}

ui.R

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+
+library(shiny)
+library(shinyAce)
+library(shinythemes)
+ui <- fluidPage(
+  #shinythemes::themeSelector(),
+  tags$head(
+    tags$link(rel = "stylesheet", type = "text/css", href = "styles.css"),
+    tags$script(src = "script.js")
+  ),
+  titlePanel("YAMLGen"),
+  
+  sidebarLayout(
+    
+    sidebarPanel(
+      img(src="portada.png", height=200, width=200),
+      textInput('title', 'Title'),
+      textInput('subtitle', 'Subtitle'),
+      textInput('author', 'Author'),
+      radioButtons('date_type', 'Date', 
+                   choices = c('Use system date' = '`r Sys.Date()`', 'Enter a date' = 'custom')),
+      conditionalPanel(
+        condition = "input.date_type == 'custom'",
+        dateInput('date', 'Date', value = Sys.Date())
+      ),
+      textInput('description', 'Description'),
+      selectInput('highlight_style', 'Choose highlight style', 
+                  choices = c('default', 'github', 'tango', 'pygments', 'kate', 'monochrome', 'espresso', 'zenburn', 'haddock')),
+      selectInput('theme', 'Choose theme', 
+                  choices = c('cerulean', 'journal', 'flatly', 'darkly', 'readable', 'spacelab', 'united', 'cosmo', 'lumen', 'paper', 'sandstone', 'simplex', 'yeti')),
+      checkboxInput('toc', 'Table of Contents', value = FALSE),
+      checkboxInput('code-fold', 'Code fold', value = FALSE),
+      checkboxInput('toc-float', 'Table of Contents Float', value = FALSE),
+      conditionalPanel(
+        condition = "input['toc-float'] == true",
+        checkboxInput('collapsed', 'Collapsed', value = TRUE),
+        checkboxInput('smooth_scroll', 'Smooth Scroll', value = TRUE)
+      ),
+  
+      helpText(),
+      fileInput('file1', 'Choose qmd or Markdown File',
+                accept=c('text/qmd', 'text/markdown',
+                         'text/comma-separated-values,text/plain',
+                         '.csv', '.qmd', '.md')), # End of file input
+      downloadButton('Download', 'Download Document'),
+      actionButton('generate', 'Generate YAML Header'),
+      tags$a(href = "https://github.com/pablovanegas/runr", target = "_blank", class = "btn btn-default shiny-bound-input", "Ver Código Fuente"),
+      tags$a(href = "https://huggingface.co/spaces/pajuan/bbbb", target = "_blank", class = "btn btn-default shiny-bound-input", "Markdown generator") 
+    ), # End of sidebar panel
+    
+    mainPanel(
+      h2("This is an app to help you create YALM headers for your documents"),
+      # User Guide #generate the .col-sm-8 class 
+      tags$div( 
+        h2("User Guide", class = 'guide-title'), 
+        tags$ol(
+          tags$li("If you're going to update your document make sure to delete this before you begin."),
+          tags$li("Custom your header: Enter your own title, author, and description in the respective text input fields on the sidebar panel."),
+          tags$li("Choose the Date: You have the option to use the system date or enter a custom date. Select your preference using the 'Date' radio buttons."),
+          tags$li("Select Highlight Style and Theme: Choose your preferred highlight style and theme from the dropdown menus."),
+          tags$li("Table of Contents and Code Fold: If you want a table of contents or code fold in your document, check the respective boxes."),
+          tags$li("Upload Your File: Choose the QMD or Markdown file you want to work with using the 'Choose qmd or Markdown File' button."),
+          tags$li("Download Your Document: Once you're done, click the 'Download Document' button to get your document.")
+        ),
+        p("Remember, make sure to decide on the parameters before inserting the archive or you can generate the header without the file and click on generate YALM"),
+      ), # End of User Guide
+      
+      
+      img(src = "guia.png", height = 300, width = 1000, align = "center"),
+      br(),
+      p(" "),
+      p("Your YALM : "),
+      tableOutput("contents"),
+      
+      fluidRow(
+        column(12, wellPanel(
+          aceEditor('code', mode = 'r', theme = 'chaos', fontSize = 12, height = '400px')
+        ))
+      ) # End of fluid row
+      
+    ) #End Main Panel
+    
+  ) # End Slider Layout
+  
+)  # End of fluid page