library(tidyverse)
library(xlsx)
passWD <- "Microsoft365"
wb.df1 <- loadWorkbook(file="./data/chap6datasets.xlsx",
                       password = passWD)
sht.names <- names(getSheets(wb.df1))
print(sht.names)

#-- Reading the password-protected Excel workbook -
irrData.df <- read.xlsx(file="./data/chap6datasets.xlsx", 
                        sheetName = "IrrData",
                        rowIndex = c(2:17),colIndex = c(19:24),
                        password = passWD)

#-- Compute the summary table
summary.df <- as_tibble(irrData.df) %>%
  group_by(Group,Target) %>%
  summarise(across(c(J1,J2,J3,J4),mean)) %>%
  mutate(across(c(J1,J2,J3,J4),max,.names="gMax.{.col}")) %>%
  ungroup() %>%
  mutate(across(!c(Group,Target),round,3))
print(summary.df)

#-- Write the input file (summary.df) and summary table to a
#   nw Excel workbook named chap6datasets1a.xlsx
write.xlsx(x = as.data.frame(irrData.df), 
           file="./data/chap6datasets1a.xlsx", 
           sheetName = "Input Data",row.names = FALSE)
write.xlsx(x = as.data.frame(summary.df), 
           file="./data/chap6datasets1a.xlsx", 
           sheetName = "summaryStats1",append = TRUE,
           row.names = FALSE)

#- Write the same summary.df data frame to a different and 
#  newly-created worksheet "summaryStats2" and add some formatting
wb.df2 <- loadWorkbook(file="./data/chap6datasets1a.xlsx")
my.sheet <- createSheet(wb=wb.df2, sheetName="summaryStats2")

MaxRow <- summary.df %>% #Calculating the max of each column
  summarise(across(c(Group,Target),~"All(Max)"),
            across(!c(Group,Target),max))
summary.df %>% #change Target type to char
  mutate(Target=as.character(Target))-> summary1.df

# Creating 2 cell blocks. One for the top label row, and one for
# the bottom row containing column maximum values.
topRow.cb <- CellBlock(sheet=my.sheet, startRow=5, startColumn=3,
                   noRows = 1, noColumns = 12)
botRow.cb <- CellBlock(sheet=my.sheet, startRow=11, startColumn=3,
                    noRows = 1, noColumns = 12)
lcols2.cb <- CellBlock(sheet=my.sheet, startRow=6, startColumn=3,
                       noRows = 5, noColumns = 2)

# Defining cell styles for each of the 2 cell blocks defined above
topRow.cs <- CellStyle(wb.df2) + Alignment(horizontal="ALIGN_CENTER") +
  Font(wb.df2, isBold=F,isItalic=F,color="yellow")
botRow.cs <- CellStyle(wb.df2) + Alignment(horizontal="ALIGN_CENTER") +
  Font(wb.df2, isBold=T,isItalic=F,color="9")
lcols2.cs <- CellStyle(wb.df2) + Alignment(horizontal="ALIGN_CENTER") +
  Font(wb.df2, isBold=F,isItalic=F)

# Defining background colors for top and bottom rows. 
top.fill <- Fill(foregroundColor = "blue", backgroundColor="blue")
bot.fill <- Fill(foregroundColor = "darkred", backgroundColor="darkred")
left2.fill <- Fill(foregroundColor = "grey75", backgroundColor="grey75")


CB.setRowData(cellBlock = topRow.cb,x=colnames(summary1.df),
              rowIndex=1,rowStyle = topRow.cs)
CB.setRowData(cellBlock = botRow.cb,x=MaxRow,
              rowIndex=1,rowStyle = botRow.cs)
CB.setMatrixData(cellBlock = lcols2.cb,x=as.matrix(summary1.df)[1:5,1:2],
              startRow=1,startColumn=1,cellStyle = lcols2.cs)

addDataFrame(x = as.data.frame(summary1.df)[,3:10], sheet = my.sheet,
             col.names = FALSE,row.names = FALSE,
             startRow=6, startColumn=5)
CB.setFill(topRow.cb, fill=top.fill, rowIndex=rep(1,10),colIndex=1:10)
CB.setFill(botRow.cb, fill=bot.fill, rowIndex=rep(1,10),colIndex=1:10)
CB.setFill(lcols2.cb, fill=left2.fill, rowIndex=rep(1:5,2),
           colIndex=c(rep(1,5),rep(2,5)))

saveWorkbook(wb.df2, file="./data/chap6datasets1b.xlsx")