#'
#' This is a Shiny web application. You can run the application by clicking
#' the 'Run App' button above.
#'
#' Find out more about building applications with Shiny here:
#'
#'    http://shiny.rstudio.com/
#'
#'
#' User requests:
#'
#' - Proper labelling of chart

library(shiny)
library(ggplot2)
source("https://raw.githubusercontent.com/agdamsbo/daDoctoR/master/R/hwe_geno.R")

ui <- fluidPage(

   # Application title
   titlePanel("Chi square test of HWE for bi- or triallelic systems"),

   sidebarLayout(
      sidebarPanel(

        # Input: Numeric entry for number of alleles ----
        radioButtons(inputId = "ale",
                     label = "Number of alleles:",
                     inline = FALSE,
                     choiceNames=c("Two alleles (M, N)",
                                   "Three alleles (M, N, O)"),
                     choiceValues=c(2,3)),

        h4("Observed genotype distribution"),

         numericInput(inputId = "mm",
                      label = "MM:",
                      value=NA),

         numericInput(inputId = "mn",
                      label = "MN:",
                      value=NA),

         numericInput(inputId = "nn",
                      label = "NN:",
                      value=NA),
        conditionalPanel(condition = "input.ale==3",

                         numericInput(inputId = "mo",
                                      label = "MO:",
                                      value=NA),

                         numericInput(inputId = "no",
                                      label = "NO:",
                                      value=NA),

                         numericInput(inputId = "oo",
                                      label = "OO:",
                                      value=NA))

      ),

      mainPanel(
        tabsetPanel(
          tabPanel("Summary",
                   h3(textOutput("obs.dist", container = span)),
                   htmlOutput("obs.tbl", container = span),

                   h3(textOutput("exp.dist", container = span)),
                   htmlOutput("exp.tbl", container = span),

                   h3(textOutput("allele.dist", container = span)),
                   htmlOutput("allele.tbl", container = span),

                   value=1),

          tabPanel("Calculations",

        h3(textOutput("chi", container = span)),
        htmlOutput("chi.val", container = span),

        h3(textOutput("p", container = span)),
        htmlOutput("p.val", container = span),

        value=2),



        tabPanel("Plots",
                 h3(textOutput("geno.pie.ttl", container = span)),
                 plotOutput("geno.pie.plt"),

                 value=3),
        selected= 2, type = "tabs")
      )
   )
)