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app.R
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# Load packages
library(shiny)
library(shinythemes)
library(shinydashboard)
library(shinyjs)
library(shinyBS)
library(shinyWidgets)
library(shinyalert)
library(htmltools) # for findDependencies()
# Import relevant R scripts
source("data.R")
source("tabInfo.R")
source("tabLog.R")
source("https://raw.githubusercontent.com/dreamRs/shinyWidgets/26838f9e9ccdc90a47178b45318d110f5812d6e1/R/useShinydashboard.R") # useShinyDashboard() is depreciated
# Shiny app
shinyApp(
ui = tagList(
useShinyjs(),
useShinydashboard(),
navbarPage(
theme = "mytheme.css",
title = "UoW Bus TimeTable",
collapsible = TRUE,
tabPanel(title = "Timetable",
# Inputs for origin and destination
fluidPage(
mainPanel(
width = 10,
fluidRow(
virtualSelectInput(inputId = "origin",
label = "From: ",
choices = stops,
selected = "Coventry Pool Meadow",
width = "100%",
search = TRUE
)
),
fluidRow(
virtualSelectInput(inputId = "dest",
label = "To: ",
choices = stops,
selected = "University of Warwick Bus Int",
width = "100%",
search = TRUE
)
),
# Latest bus arrival time
fluidRow(
div(h1("12x"),
style="min-width:20px;max-width:50%; float:left"
),
div(div(id = "click.12x", shinydashboard::valueBoxOutput(outputId = "latest.12x", width = 12)),
style="min-width:260px;max-width:100%; float:right"
),
),
fluidRow(
div(h1("11"),
style="min-width:20px;max-width:50%; float:left"
),
div(div(id = "click.11", valueBoxOutput(outputId = "latest.11", width = 12)),
style="min-width:260px;max-width:100%; float:right"
),
),
fluidRow(
div(h1("14a"),
style="min-width:20px;max-width:50%; float:left"
),
div(div(id = "click.14a", valueBoxOutput(outputId = "latest.14a", width = 12)),
style="min-width:260px;max-width:100%; float:right"
),
),
fluidRow(
div(h1("14"),
style="min-width:20px;max-width:50%; float:left"
),
div(div(id = "click.14", valueBoxOutput(outputId = "latest.14", width = 12)),
style="min-width:260px;max-width:100%; float:right"
),
)
)
)
),
tabPanel(title = "Info", tabInfo),
tabPanel(title = "Log", tabLog)
)
),
server = function(input, output, session){
# Welcome message
shinyalert(
title = "Welcome!",
text = "This bus timetable is for illustration purpose only.\nPlease visit Info for more information!\nLast Updated: 2024-09-09"
)
# update choices for dest
observe({
req(input$origin)
updateVirtualSelect(inputId = "dest", label = "To: ", choices = if(input$origin != "University of Warwick Bus Int") "University of Warwick Bus Interchange" else stops[!stops %in% c("University of Warwick Bus Int", "Quadrant")],
selected = if (input$origin != "University of Warwick Bus Int") "University of Warwick Bus Interchange" else "Coventry Pool Meadow")
})
# Create reactive objects based on origin and dest
start <- reactive({ if (input$origin == "University of Warwick Bus Interchange") "University of Warwick Bus Int" else input$origin })
end <- reactive({ if (input$origin == "University of Warwick Bus Int") { if (input$dest %in% c("Canley Prior Deram Walk", "Kenilworth Clock", "Leamington Spa Upper Parade", "Leamington Spa High Street")) input$dest else "University of Warwick Bus Int" } else "Uni" })
end.origin <- reactive({ input$dest })
check <- reactive({ list(start(), end(), end.origin()) })
# Find the latest bus arrival time based on start and end
observeEvent(check(),{
# 12x
output$latest.12x <- renderValueBox({
invalidateLater(1000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if (end.origin() %in% c("Earlsdon City Arms", "Coventry Station Interchange", "Leamington Spa High Street", "Leamington Spa Upper Parade", "Kenilworth Clock", "Maudslay Road The Maudslay", "Eastern Green Farcroft Avenue", "Torrington Ave", "Tile Hill Rail Station", "Allesley Old Road / Mount St", "Cannon Park Shops")){
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}else{
if (!is.na(timecheck.12x(origin = start(), dest = end()))){
valueBox(
value = paste0(timecheck.12x(origin = start(), dest = end(), min = T), " minutes"),
subtitle = tags$p(timecheck.12x(origin = start(), dest = end()), style = "font-size: 100%;"),
color = if (timecheck.12x(origin = start(), dest = end(), min = T) < 5) "red" else if (timecheck.12x(origin = start(), dest = end(), min = T) >= 5 & timecheck.12x(origin = start(), dest = end(), min = T) < 10) "yellow" else "green"
)
}else{
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}
}
})
# 11
output$latest.11 <- renderValueBox({
invalidateLater(1000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if (end.origin() %in% c("Coventry Station Warwick Road", "Canley Prior Deram Walk", "Maudslay Road The Maudslay", "Eastern Green Farcroft Avenue", "Torrington Ave", "Tile Hill Rail Station", "Allesley Old Road / Mount St", "Cannon Park Shops")){
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}else{
if (!is.na(timecheck.11(origin = start(), dest = end()))){
valueBox(
value = paste0(timecheck.11(origin = start(), dest = end(), min = T), " minutes"),
subtitle = tags$p(timecheck.11(origin = start(), dest = end()), style = "font-size: 100%;"),
color = if (timecheck.11(origin = start(), dest = end(), min = T) < 5) "red" else if (timecheck.11(origin = start(), dest = end(), min = T) >= 5 & timecheck.11(origin = start(), dest = end(), min = T) < 10) "yellow" else "green"
)
}else{
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}
}
})
# 14a
output$latest.14a <- renderValueBox({
invalidateLater(1000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if (!is.na(timecheck.14a(origin = start(), dest = end()))){
valueBox(
value = paste0(timecheck.14a(origin = start(), dest = end(), min = T), " minutes"),
subtitle = tags$p(timecheck.14a(origin = start(), dest = end()), style = "font-size: 100%;"),
color = if (timecheck.14a(origin = start(), dest = end(), min = T) < 5) "red" else if (timecheck.14a(origin = start(), dest = end(), min = T) >= 5 & timecheck.14a(origin = start(), dest = end(), min = T) < 10) "yellow" else "green"
)
}else{
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}
})
# 14
output$latest.14 <- renderValueBox({
invalidateLater(1000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if (end.origin() %in% c("Coventry Station Interchange", "Coventry Station Warwick Road", "Canley Prior Deram Walk", "Earlsdon City Arms", "Coventry Station Interchange", "Leamington Spa High Street", "Leamington Spa Upper Parade", "Kenilworth Clock", "Maudslay Road The Maudslay", "Torrington Ave", "Cannon Park Shops")){
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}else{
if (!is.na(timecheck.14(origin = start(), dest = end()))){
valueBox(
value = paste0(timecheck.14(origin = start(), dest = end(), min = T), " minutes"),
subtitle = tags$p(timecheck.14(origin = start(), dest = end()), style = "font-size: 100%;"),
color = if (timecheck.14(origin = start(), dest = end(), min = T) < 5) "red" else if (timecheck.14(origin = start(), dest = end(), min = T) >= 5 & timecheck.14(origin = start(), dest = end(), min = T) < 10) "yellow" else "green"
)
}else{
valueBox(
value = "NA",
subtitle = "", color = "purple"
)
}
}
})
})
observeEvent(check(), {
# 12x
onclick('click.12x', showModal(modalDialog(
title = "Arrival Time (including last bus arrival)",
DT::renderDT({
invalidateLater(60000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if (end.origin() %in% c("Earlsdon City Arms", "Coventry Station Interchange", "Leamington Spa High Street", "Leamington Spa Upper Parade", "Kenilworth Clock", "Maudslay Road The Maudslay", "Eastern Green Farcroft Avenue", "Torrington Ave", "Tile Hill Rail Station", "Allesley Old Road / Mount St", "Cannon Park Shops")){
DT::datatable(timecheck.12x(origin = start(), dest = "dest", DT=T), # set dist=dist to avoid generating incorrect timetable once clicked
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}else{
DT::datatable(timecheck.12x(origin = start(), dest = end(), DT=T),
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}
})
)))
# 11
onclick('click.11', showModal(modalDialog(
title = "Arrival Time (including last bus arrival)",
DT::renderDT({
invalidateLater(60000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if(end.origin() %in% c("Coventry Station Warwick Road", "Canley Prior Deram Walk", "Maudslay Road The Maudslay", "Eastern Green Farcroft Avenue", "Torrington Ave", "Tile Hill Rail Station", "Allesley Old Road / Mount St", "Cannon Park Shops")){
DT::datatable(timecheck.11(origin = start(), dest = "dest", DT=T), # set dist=dist to avoid generating incorrect timetable once clicked
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}else{
DT::datatable(timecheck.11(origin = start(), dest = end(), DT=T),
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}
})
)))
# 14a
onclick('click.14a', showModal(modalDialog(
title = "Arrival Time (including last bus arrival)",
DT::renderDT({
invalidateLater(60000, session) # Ensure the site gets updated after it gets idle for a certain period of time
DT::datatable(timecheck.14a(origin = start(), dest = end(), DT=T),
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
})
)))
# 14
onclick('click.14', showModal(modalDialog(
title = "Arrival Time (including last bus arrival)",
DT::renderDT({
invalidateLater(60000, session) # Ensure the site gets updated after it gets idle for a certain period of time
if(end.origin() %in% c("Coventry Station Interchange", "Coventry Station Warwick Road", "Canley Prior Deram Walk", "Earlsdon City Arms", "Coventry Station Interchange", "Leamington Spa High Street", "Leamington Spa Upper Parade", "Kenilworth Clock", "Maudslay Road The Maudslay", "Torrington Ave", "Cannon Park Shops")){
DT::datatable(timecheck.14(origin = start(), dest = "dest", DT=T), # set dist=dist to avoid generating incorrect timetable once clicked
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}else{
DT::datatable(timecheck.14(origin = start(), dest = end(), DT=T),
filter = "none",
selection = "none",
options = list(searching = FALSE,
lengthChange = FALSE,
ordering = FALSE
),
rownames = FALSE
)
}
})
)))
})
}
)