Update server.R

server.R

@@ -1,145 +1,145 @@
-#Server.R
-library(shiny)
-library(rmarkdown)
-library(knitr)
-library(tinytex)
-
-# Function: Biological Age Calculation
-calculate_bioage <- function(age, gender, smoking_status, bmi, waist_circumference) {
-  bioage <- age + (bmi * 0.1) + (ifelse(smoking_status == "Yes", 5, 0))
-  return(bioage)
-}
-
-# Function: Validate User Inputs
-validate_inputs <- function(input) {
-  validate(
-    need(input$age > 0, "Age must be positive"),
-    need(input$bmi > 0, "BMI must be positive"),
-    need(input$waist_circumference > 0, "Waist circumference must be positive")
-  )
-}
-
-# Function: Show Modal Dialog starting 
-show_bioage_modal <- function(name, age, bioage) {
-  # Determine the message based on BioAge vs Chronological Age.
-  message <- if (bioage < age) {
-    paste0(
-      name, ", your BioAge is ", round(bioage, 2), 
-      " years, which is lower than your Chronological Age. Great job maintaining healthy habits!"
-    )
-  } else if (bioage > age) {
-    paste0(
-      name, ", your BioAge is ", round(bioage, 2), 
-      " years, which is higher than your Chronological Age. Consider focusing on healthier lifestyle choices."
-    )
-  } else {
-    paste0(
-      name, ", your BioAge matches your Chronological Age, indicating balanced health markers."
-    )
-  }
-  
-  # Modal dialogue starting
-  showModal(
-    modalDialog(
-      title = tagList(h3(paste0(name, "'s BioAge"))),
-      div(
-        style = "text-align: center; margin-top: 20px;",
-        fluidRow(
-          column(5, div(
-            p("Chronological Age", style = "font-weight: bold; font-size: 16px;"),
-            p(paste(age, "years"), style = "font-size: 24px; font-weight: bold; color: #4CAF50;")
-          )),
-          column(2, div(
-            p("→", style = "font-size: 32px; font-weight: bold; color: #888; margin-top: 25px;")
-          )),
-          column(5, div(
-            p("BioAge", style = "font-weight: bold; font-size: 16px;"),
-            p(paste(round(bioage, 2), "years"), style = "font-size: 24px; font-weight: bold; color: #2196F3;")
-          ))
-        )
-      ),
-      div(
-        style = "text-align: center; margin-top: 20px;",
-        p(message, style = "font-size: 16px; font-weight: bold;")
-      ),
-      div(
-        style = "text-align: center; margin-top: 10px;",
-        p("Complete report sent to your WhatsApp", style = "font-size: 14px;"),
-        p("xxxxxxxx4321", style = "font-size: 14px; color: #888;")
-      ),
-      easyClose = TRUE
-    )
-  )
-}
-
-
-# Pdf report generation block
-generate_report <- function(params, output_file) {
-  src <- normalizePath('report.Rmd')  # Ensure 'report.Rmd' exists in your project directory
-  
-  # Copy Rmd file to a temporary directory ( using tinytex not LaTex) which is lite weight.
-  owd <- setwd(tempdir())
-  on.exit(setwd(owd))
-  
-  file.copy(src, 'report.Rmd', overwrite = TRUE)
-  
-  # Render the report with the provided parameters in the form entries
-  rmarkdown::render(
-    input = 'report.Rmd',
-    output_file = output_file,
-    output_format = 'pdf_document',
-    envir = new.env(parent = globalenv())  # Use a new environment to avoid conflicts
-  )
-}
-
-# Server Logic
-server <- function(input, output, session) {
-  observeEvent(input$calculate, {
-    validate_inputs(input)
-    
-    bioage <- calculate_bioage(
-      age = input$age,
-      gender = input$gender,
-      smoking_status = ifelse(input$smoker, "Yes", "No"),
-      bmi = input$bmi,
-      waist_circumference = input$waist_circumference
-    )
-    
-    # Pass required arguments explicitly
-    show_bioage_modal(
-      name = input$name,
-      age = input$age,
-      bioage = bioage
-    )
-  })
-  
-  output$downloadReport <- downloadHandler(
-    filename = function() {
-      paste("bioage_report_", Sys.Date(), ".pdf", sep = "")
-    },
-    content = function(file) {
-      tryCatch({
-        generate_report(
-          params = list(
-            name = input$name,
-            age = input$age,
-            bioage = calculate_bioage(
-              age = input$age,
-              gender = input$gender,
-              smoking_status = ifelse(input$smoker, "Yes", "No"),
-              bmi = input$bmi,
-              waist_circumference = input$waist_circumference
-            )
-          ),
-          output_file = file
-        )
-      }, error = function(e) {
-        showModal(modalDialog(
-          title = "Error",
-          paste("Failed to generate the report:", e$message),
-          easyClose = TRUE
-        ))
-      })
-    }
-  )
-}
+#Server.R
+library(shiny)
+library(rmarkdown)
+library(knitr)
+library(tinytex)
+
+# Function: Biological Age Calculation
+calculate_bioage <- function(age, gender, smoking_status, bmi, waist_circumference) {
+  bioage <- age + (bmi * 0.1) + (ifelse(smoking_status == "Yes", 5, 0))
+  return(bioage)
+}
+
+# Function: Validate User Inputs
+validate_inputs <- function(input) {
+  validate(
+    need(input$age > 0, "Age must be positive"),
+    need(input$bmi > 0, "BMI must be positive"),
+    need(input$waist_circumference > 0, "Waist circumference must be positive")
+  )
+}
+
+# Function: Show Modal Dialog starting 
+show_bioage_modal <- function(name, age, bioage) {
+  # Determine the message based on BioAge vs Chronological Age.
+  message <- if (bioage < age) {
+    paste0(
+      name, ", your BioAge is ", round(bioage, 2), 
+      " years, which is lower than your Chronological Age. Great job maintaining healthy habits!"
+    )
+  } else if (bioage > age) {
+    paste0(
+      name, ", your BioAge is ", round(bioage, 2), 
+      " years, which is higher than your Chronological Age. Consider focusing on healthier lifestyle choices."
+    )
+  } else {
+    paste0(
+      name, ", your BioAge matches your Chronological Age, indicating balanced health markers."
+    )
+  }
+  
+  # Modal dialogue starting
+  showModal(
+    modalDialog(
+      title = tagList(div(style = "text-align: center;",h3(paste0(name, "'s BioAge")))),
+      div(
+        style = "text-align: center; margin-top: 20px;",
+        fluidRow(
+          column(5, div(
+            p("Chronological Age", style = "font-weight: bold; font-size: 16px;"),
+            p(paste(age, "years"), style = "font-size: 24px; font-weight: bold; color: #4CAF50;")
+          )),
+          column(2, div(
+            p("→", style = "font-size: 32px; font-weight: bold; color: #888; margin-top: 25px;")
+          )),
+          column(5, div(
+            p("BioAge", style = "font-weight: bold; font-size: 16px;"),
+            p(paste(round(bioage, 2), "years"), style = "font-size: 24px; font-weight: bold; color: #2196F3;")
+          ))
+        )
+      ),
+      div(
+        style = "text-align: center; margin-top: 20px;",
+        p(message, style = "font-size: 16px; font-weight: bold;")
+      ),
+      div(
+        style = "text-align: center; margin-top: 10px;",
+        p("Complete report sent to your WhatsApp", style = "font-size: 14px;"),
+        p("xxxxxxxx4321", style = "font-size: 14px; color: #888;")
+      ),
+      easyClose = TRUE
+    )
+  )
+}
+
+
+# Pdf report generation block
+generate_report <- function(params, output_file) {
+  src <- normalizePath('report.Rmd')  # Ensure 'report.Rmd' exists in your project directory
+  
+  # Copy Rmd file to a temporary directory ( using tinytex not LaTex) which is lite weight.
+  owd <- setwd(tempdir())
+  on.exit(setwd(owd))
+  
+  file.copy(src, 'report.Rmd', overwrite = TRUE)
+  
+  # Render the report with the provided parameters in the form entries
+  rmarkdown::render(
+    input = 'report.Rmd',
+    output_file = output_file,
+    output_format = 'pdf_document',
+    envir = new.env(parent = globalenv())  # Use a new environment to avoid conflicts
+  )
+}
+
+# Server Logic
+server <- function(input, output, session) {
+  observeEvent(input$calculate, {
+    validate_inputs(input)
+    
+    bioage <- calculate_bioage(
+      age = input$age,
+      gender = input$gender,
+      smoking_status = ifelse(input$smoker, "Yes", "No"),
+      bmi = input$bmi,
+      waist_circumference = input$waist_circumference
+    )
+    
+    # Pass required arguments explicitly
+    show_bioage_modal(
+      name = input$name,
+      age = input$age,
+      bioage = bioage
+    )
+  })
+  
+  output$downloadReport <- downloadHandler(
+    filename = function() {
+      paste("bioage_report_", Sys.Date(), ".pdf", sep = "")
+    },
+    content = function(file) {
+      tryCatch({
+        generate_report(
+          params = list(
+            name = input$name,
+            age = input$age,
+            bioage = calculate_bioage(
+              age = input$age,
+              gender = input$gender,
+              smoking_status = ifelse(input$smoker, "Yes", "No"),
+              bmi = input$bmi,
+              waist_circumference = input$waist_circumference
+            )
+          ),
+          output_file = file
+        )
+      }, error = function(e) {
+        showModal(modalDialog(
+          title = "Error",
+          paste("Failed to generate the report:", e$message),
+          easyClose = TRUE
+        ))
+      })
+    }
+  )
+}