app.R

library(shiny)
library(DT)
library(dplyr)
#library(tidyverse)
library(xgboost)
library(httr)
library(bslib)
library(rtabulator)
library(purrr)
library(arrow)

download_private_csv <- function(repo_id, filename) {
  url <- paste0("https://huggingface.co/datasets/", repo_id, "/resolve/main/", filename)
  response <- GET(url, add_headers(Authorization = paste("Bearer", Sys.getenv("GETCSV"))))
  
  if (status_code(response) == 200) {
    # Get content as text first to check if it's an LFS pointer
    content_text <- content(response, "text", encoding = "UTF-8")
    
    # Check if this is an LFS pointer (LFS files start with "version https://git-lfs.github.com/spec/")
    if (grepl("^version https://git-lfs.github.com/spec/", content_text)) {
      # This is an LFS file - extract the oid (hash) from the pointer
      oid_line <- grep("oid sha256:", strsplit(content_text, "\n")[[1]], value = TRUE)
      oid <- gsub("oid sha256:", "", oid_line)
      oid <- trimws(oid)
      
      # Construct the LFS content URL
      lfs_url <- paste0("https://huggingface.co/datasets/", repo_id, "/resolve/main/.git/lfs/objects/", 
                        substr(oid, 1, 2), "/", substr(oid, 3, 4), "/", oid)
      
      # Get the actual content from LFS storage
      lfs_response <- GET(lfs_url, add_headers(Authorization = paste("Bearer", Sys.getenv("GETCSV"))))
      
      if (status_code(lfs_response) == 200) {
        content_text <- content(lfs_response, "text", encoding = "UTF-8")
      } else {
        # Alternative LFS URL format
        lfs_url <- paste0("https://huggingface.co/datasets/", repo_id, "/lfs/resolve/main/", filename, "?download=true")
        lfs_response <- GET(lfs_url, add_headers(Authorization = paste("Bearer", Sys.getenv("GETCSV"))))
        
        if (status_code(lfs_response) == 200) {
          content_text <- content(lfs_response, "text", encoding = "UTF-8")
        } else {
          stop(paste("Failed to download LFS content. Status code:", status_code(lfs_response)))
        }
      }
    }
    
    # Process the content (whether it was LFS or regular)
    con <- textConnection(content_text)
    tryCatch({
      data <- read.csv(con, 
                      header = TRUE,
                      check.names = FALSE,
                      fileEncoding = "UTF-8",
                      stringsAsFactors = FALSE)
      return(data)
    }, error = function(e) {
      close(con)
      stop(paste("Error parsing CSV:", e$message))
    }, finally = {
      close(con)
    })
  } else {
    stop(paste("Failed to download dataset. Status code:", status_code(response)))
  }
}

download_private_parquet <- function(repo_id, filename) {
  library(httr)
  library(arrow)
  
  # Create the direct download URL based on your example
  url <- paste0("https://huggingface.co/datasets/", repo_id, "/resolve/main/", filename, "?download=true")
  
  # Create a temporary file
  temp_file <- tempfile(fileext = ".parquet")
  
  # Download directly to file
  response <- GET(
    url,
    add_headers(Authorization = paste("Bearer", Sys.getenv("GETCSV"))),
    write_disk(temp_file, overwrite = TRUE)
  )
  
  # Check if download was successful
  if (status_code(response) == 200) {
    tryCatch({
      # Read the parquet file
      data <- read_parquet(temp_file)
      file.remove(temp_file)
      return(data)
    }, error = function(e) {
      file.remove(temp_file)
      stop(paste("Error reading parquet file:", e$message))
    })
  } else {
    file.remove(temp_file)
    stop(paste("Failed to download file. Status code:", status_code(response)))
  }
}


MLB25 <- download_private_parquet("TimStats/StatcastDataAll", "MLB25.parquet")
MLB25$level <- "MLB"
AAA25 <- download_private_parquet("TimStats/StatcastDataAll", "AAA25.parquet")
AAA25$level <- "AAA"
FSL25 <- download_private_parquet("TimStats/StatcastDataAll", "FSL25.parquet")
FSL25$level <- "FSL"
#ST <- read.csv("SpringT25.csv", header = TRUE, check.names = FALSE, fileEncoding = "UTF-8")

#names(ST)
MLB <- download_private_parquet("TimStats/StatcastDataAll", "MLB.parquet")
MLB$level <- "MLB"
AAA <- download_private_parquet("TimStats/StatcastDataAll", "AAA.parquet")
AAA$level <- "AAA"
FSL <- download_private_parquet("TimStats/StatcastDataAll", "FSL.parquet")
FSL$level <- "FSL"
print("Mlb")
MLB <- rbind(MLB,MLB25)
print("aaa")
AAA <- rbind(AAA,AAA25)
print("fsl")
FSL <- rbind(FSL,FSL25)

is_barrel <- function(df) {
    df$barrel <- with(df, ifelse(hit_angle <= 50 & hit_speed >= 97 & hit_speed * 1.5 - 
                                     hit_angle >= 117 & hit_speed + hit_angle >= 123, 1, 0))
    return(df)
}

VAA <- function(milbtotal){
  milbtotal <- milbtotal |>
    mutate(vaa = -atan((vz0+(az*(-sqrt((vy0*vy0)-(2*ay*(y0-(17/12))))-vy0)/
                               ay))/(-sqrt((vy0*vy0)-(2*ay*(y0-(17/12))))))*(180/pi))
} 

calculate_EAA <- function(extension) {
  extension / 6.3
}

calculate_SADiff <- function(pfxX, pfxZ, spinDirection) {
  inSA <- atan2(pfxZ, pfxX) * 180/pi + 90
  inSA <- ifelse(inSA < 0, inSA + 360, inSA)
  SADiff <- spinDirection - inSA
  SADiff <- ifelse(SADiff > 180, SADiff - 360, SADiff)
  SADiff <- ifelse(SADiff < -180, SADiff + 360, SADiff)
  return(SADiff)
}

calculate_VAA <- function(vz0, ay, az, vy0, y0) {
  -atan((vz0+(az*(-sqrt((vy0*vy0)-(2*ay*(y0-(17/12))))-vy0)/
                ay))/(-sqrt((vy0*vy0)-(2*ay*(y0-(17/12))))))*(180/pi)
}

calculate_timstuff <- function(game) {
  # game <- calculate_primary(game)
  game <- game %>%
    mutate(
      #VAA = calculate_VAA(vz0, ay, az, vy0, y0),
           EAA = calculate_EAA(extension),
           SADiff = calculate_SADiff(pfxX, pfxZ, spinDirection),
           #team_fielding_id = ifelse(description %in% c("Called Strike", "Swinging Strike", "Swinging Strike (Blocked)"), 1, 0),
          # swing = ifelse(description %in% c("Foul", "Foul Pitchout", "In play, no out", "In play, out(s)", "In play, run(s)", "Swinging Strike", "Swinging Strike (Blocked)", "Foul Tip"), 1, 0),
           #is_strike_swinging = ifelse(is_strike_swinging, 1, 0),
           #Pitch = pitch_name,
           ishandL = ifelse(phand == "L",1,0))
  # game <- calculate_primary(game)
  
  feature_vars <- c("ishandL","start_speed", "IVB", "HB", "EAA", "x0", "z0", "spin_rate","SADiff")
  complete_rows <- complete.cases(game[, feature_vars])
  game_complete <- game[complete_rows, ]
  game_na <- game[!complete_rows,]
  game_na$TimStuff <- NA
  
  rhp <- game_complete
  
  # rhp <- game_complete[game_complete$ishandL == 0]
  # 
  # lhp$TimStuff <- scale_TimStuff(predict(model, as.matrix(cbind(lhp$ishandL,lhp$start_speed, lhp$IVB, lhp$HB, lhp$EAA, lhp$x0, lhp$z0, lhp$spin_rate, lhp$SADiff,lhp$primary_speed,lhp$primary_IVB,lhp$primary_HB))), -0.00249975,  0.007566558)
  
  rhp$TimStuff <- scale_TimStuff(predict(model, as.matrix(cbind(rhp$ishandL,rhp$start_speed, rhp$IVB, rhp$HB, rhp$EAA, rhp$x0, rhp$z0, rhp$spin_rate, rhp$SADiff))),   -0.002620635,   0.006021368)
  
  game_complete <- rbind(rhp,game_na)
  return(game_complete)
}

scale_TimStuff <- function(raw_score, model_mean, model_sd) {
  scaled_score <- (raw_score - model_mean) / model_sd
  result <- 100 - (scaled_score * 10)
  return(result)
}

model <- xgb.load('TimStuff2.model')
#######

Swing <- function(milbtotal){
  milbtotal <- milbtotal %>%
    mutate(swing = ifelse(description == "Foul" |
                            description == "Foul Pitchout" |
                            description == "In play, no out" |
                            description == "In play, out(s)" | 
                            description == "In play, run(s)" | 
                            description == "Swinging Strike" | 
                            description == "swinging Strike (Blocked)" |
                            description == "Foul Tip",1,0))
}

addChecks <- function(df){
  df <- is_barrel(df)
  df %>% mutate(
    InPlayCheck = case_when(description %in% c('In play, run(s)','In play, out(s)','In play, no out') ~ TRUE, TRUE ~ FALSE),
    SwingCheck = case_when(description %in% c('Foul','Foul Bunt','Foul Pitchout','Foul Tip',
                                         'In play, run(s)','In play, out(s)','In play, no out',
                                         'Swinging Strike','Swinging Strike (Blocked)',
                                         'Missed Bunt') ~ TRUE, TRUE ~ FALSE),
    ConCheck = case_when(description %in% c('In play, run(s)','In play, out(s)','In play, no out',
                                           'Foul','Foul Bunt','Foul Pitchout') ~ TRUE, TRUE ~ FALSE),
    WhiffCheck = case_when(description %in% c('Swinging Strike','Swinging Strike (Blocked)',
                                         'Missed Bunt','Foul Tip') ~ TRUE, TRUE ~ FALSE),
    CalledStrikeCheck = case_when(description %in% c('Called Strike') ~ TRUE, TRUE ~ FALSE),
    CSWCheck = case_when(description %in% c('Swinging Strike','Swinging Strike (Blocked)',
                                            'Missed Bunt','Foul Tip','Called Strike') ~ TRUE, TRUE ~ FALSE),
    StrikeCheck = case_when(description %in% c('Called Strike','Foul','Foul Bunt','Foul Pitchout',
                                               'Foul Tip','In play, no out','In play, out(s)',
                                               'In play, run(s)','Missed Bunt','Pitchout',
                                               'Swinging Strike','Swinging Strike (Blocked)') ~ TRUE, TRUE ~ FALSE),
    BallCheck = case_when(description %in% c('Ball','Ball In Dirt','Hit By Pitch') ~ TRUE, TRUE ~ FALSE),
    SweetSpotCheck = case_when(between(hit_angle,10,30) ~ TRUE, TRUE ~ FALSE),
    HardHitCheck = case_when(hit_speed >= 95 ~ TRUE, TRUE ~ FALSE),
    ZoneCheck = ifelse(zone <= 9, TRUE, FALSE),
    Single = case_when(result == "Single" & InPlayCheck == TRUE ~ TRUE, TRUE ~ FALSE),
    Double = case_when(result == "Double" & InPlayCheck == TRUE ~ TRUE, TRUE ~ FALSE),
    Triple = case_when(result == "Triple" & InPlayCheck == TRUE ~ TRUE, TRUE ~ FALSE),
    `Home Run` = case_when(result == "Home Run" & InPlayCheck == TRUE ~ TRUE, TRUE ~ FALSE),
    WalkCheck = case_when(balls >= 4 & result == "Walk" ~ TRUE, TRUE ~ FALSE),
    HBPCheck = case_when(description == "Hit By Pitch" & result == "Hit By Pitch" ~ TRUE, TRUE ~ FALSE),
    StrikeoutCheck = case_when(strikes >= 3 & result %in% c("Strikeout",'Strikeout Double Play') ~ TRUE, TRUE ~ FALSE),
    SacrificeCheck = case_when(InPlayCheck == TRUE & result %in% c('Sac Fly','Sac Bunt',
                                                'Sac Fly Double Play','Sac Bunt Double Play') ~ TRUE, TRUE ~ FALSE),
    IBBCheck = case_when(pitchNum == 1 & result == "Intent Walk" ~ TRUE, TRUE ~ FALSE),
    ABCheck = StrikeoutCheck + InPlayCheck - SacrificeCheck,
    PACheck = ABCheck + WalkCheck + HBPCheck,
    TopZoneCheck = if_else(zone < 4,TRUE,FALSE),
    BotZoneCheck = if_else(zone > 6 & zone < 10,TRUE,FALSE),
    CompSwingCheck = if_else(bat_speed >= 60 & hit_speed >= 90,TRUE,FALSE),
    CompSwingCheck = ifelse(bat_speed >= quantile(bat_speed,.1,na.rm = TRUE),1,0)
  ) 
}
#' test <- addChecks(MLB) %>%   group_by(`Pitcher Name`,season,pitch_name) %>%
#' summarise(
#'   Pitches = n(),
#'   'Avg Velo' = mean(start_speed,na.rm = TRUE),
#'   'Top Velo' = max(start_speed,na.rm = TRUE),
#'   #'TimStuff+' = mean(TimStuff,na.rm = TRUE),
#'   'Max EV' = max(hit_speed,na.rm = TRUE),
#'   'Avg EV' = mean(hit_speed,na.rm = TRUE),
#'   'EV90' = quantile(hit_speed,0.9,na.rm = TRUE),
#'   'Avg LA' = mean(hit_angle,na.rm = TRUE),
#'   'stdevLA' = sd(hit_angle,na.rm = TRUE),
#'   'HardHit%' = mean(HardHitCheck[InPlayCheck == TRUE],na.rm = TRUE),
#'   'Barrel%' = mean(barrel[InPlayCheck == TRUE],na.rm = TRUE),
#'   'Sweet Spot%' = mean(SweetSpotCheck[InPlayCheck == TRUE],na.rm = TRUE),
#'   'xwOBA' = mean(expected_woba,na.rm = TRUE),
#'   'xwOBACON' = mean(expected_woba[InPlayCheck == TRUE],na.rm = TRUE),
#'   'Contact%' = mean(ConCheck[SwingCheck == TRUE],na.rm = TRUE),
#'   'ZCon%' = mean(ConCheck[ZoneCheck == TRUE] & SwingCheck == TRUE,na.rm = TRUE),
#'   'ZSwing%' = mean(SwingCheck[ZoneCheck == TRUE],na.rm = TRUE),
#'   'OCon%' = mean(ConCheck[ZoneCheck == FALSE] & SwingCheck == TRUE,na.rm = TRUE),
#'   'Chase%' = mean(SwingCheck[ZoneCheck == FALSE],na.rm = TRUE),
#'   'SwStr%' = mean(WhiffCheck,na.rm = TRUE),
#'   'Whiff%' = mean(WhiffCheck[SwingCheck == TRUE],na.rm = TRUE),
#'   'Zone%' = mean(ZoneCheck,na.rm = TRUE),
#'   'Strike%' = mean(StrikeCheck,na.rm = TRUE),
#'   'Swing%' = mean(SwingCheck,na.rm = TRUE),
#'   'Spin Rate' = mean(spin_rate,na.rm = TRUE),
#'   'Extension' = mean(extension,na.rm = TRUE),
#'   'IVB' = mean(IVB,na.rm = TRUE),
#'   'HB' = mean(HB,na.rm = TRUE),
#'   # 'VAA' = mean(vaa,na.rm = TRUE),
#'   # 't3VAA' = mean(vaa[TopZoneCheck == TRUE],na.rm = TRUE),
#'   # 'b3VAA' = mean(vaa[BotZoneCheck == TRUE],na.rm = TRUE),
#'   'CSW%' = mean(CSWCheck,na.rm = TRUE),
#'   'Arm Angle' = mean(arm_angle,na.rm = TRUE),
#'   'Bat Speed' = mean(bat_speed[CompSwingCheck ==  TRUE],na.rm = TRUE)
#' )
print("mlbp")
print(colnames(MLB))
MLB_processed <- MLB %>% 
  as.data.frame() %>%
  calculate_timstuff() %>%
  addChecks() %>%
  VAA() %>%
  mutate('Pitch Name' = pitch_name) %>%
  mutate('Season' = season) %>%
  mutate('Level' = level) %>%
  mutate('Pitch Type' = case_when(
    pitch_name %in% c("Four-Seam Fastball", "Sinker", "Cutter", "Fastball") ~ "Fastball",
    pitch_name %in% c("Slider", "Sweeper", "Slurve", "Curveball", "Screwball",
                      "Knuckle Curve", "Slow Curve", "Eephus") ~ "Breaking",
    pitch_name %in% c("Changeup", "Splitter", "Forkball") ~ "Offspeed",
    TRUE ~ NA_character_  # Corrected default case
  )) %>%
  mutate('Batter Side' = bside) %>%
  mutate('Pitcher Hand' = phand) %>%
  mutate('Stadium' = venue_name) %>%
  mutate('Batter Home/Away' = ifelse(`Batter Team` == teams_home_team_name,"Home","Away")) %>%
  mutate('Pitcher Home/Away' = ifelse(`Pitcher Team` == teams_home_team_name,"Home","Away"))
print("aaap")
AAA_processed <- AAA %>%
  as.data.frame() %>%
  calculate_timstuff() %>%
  addChecks()%>%
  VAA()%>%
  mutate('Pitch Name' = pitch_name) %>%
  mutate('Season' = season) %>%
  mutate('Level' = level) %>%
  mutate('Pitch Type' = case_when(
    pitch_name %in% c("Four-Seam Fastball", "Sinker", "Cutter", "Fastball") ~ "Fastball",
    pitch_name %in% c("Slider", "Sweeper", "Slurve", "Curveball", "Screwball",
                      "Knuckle Curve", "Slow Curve", "Eephus") ~ "Breaking",
    pitch_name %in% c("Changeup", "Splitter", "Forkball") ~ "Offspeed",
    TRUE ~ NA_character_  # Corrected default case
  ))%>%
  mutate('Batter Side' = bside) %>%
  mutate('Pitcher Hand' = phand) %>%
  mutate('Stadium' = venue_name) %>%
  mutate('Batter Home/Away' = ifelse(`Batter Team` == teams_home_team_name,"Home","Away")) %>%
  mutate('Pitcher Home/Away' = ifelse(`Pitcher Team` == teams_home_team_name,"Home","Away"))
print("fslp")
FSL_processed <- FSL %>%
  as.data.frame() %>%
  calculate_timstuff() %>%
  addChecks()%>%
  VAA()%>%
  mutate('Pitch Name' = pitch_name) %>%
  mutate('Season' = season) %>%
  mutate('Level' = level) %>%
  mutate('Pitch Type' = case_when(
    pitch_name %in% c("Four-Seam Fastball", "Sinker", "Cutter", "Fastball") ~ "Fastball",
    pitch_name %in% c("Slider", "Sweeper", "Slurve", "Curveball", "Screwball",
                      "Knuckle Curve", "Slow Curve", "Eephus") ~ "Breaking",
    pitch_name %in% c("Changeup", "Splitter", "Forkball") ~ "Offspeed",
    TRUE ~ NA_character_  # Corrected default case
  ))%>%
  mutate('Batter Side' = bside) %>%
  mutate('Pitcher Hand' = phand) %>%
  mutate('Stadium' = venue_name) %>%
  mutate('Batter Home/Away' = ifelse(`Batter Team` == teams_home_team_name,"Home","Away")) %>%
  mutate('Pitcher Home/Away' = ifelse(`Pitcher Team` == teams_home_team_name,"Home","Away"))

# Available stats for the UI
available_stats <- c("Pitches", "Avg Velo", "Top Velo", "TimStuff", "Max EV", "Avg EV", 
                     "EV90", "Avg LA", "stdevLA", "HardHit%", "Barrel%", "SwSpt%",
                     "xwOBA", "xDamage", "Contact%", "ZCon%", "ZSwing%", "OCon%", 
                     "Chase%", "SwStr%", "Whiff%", "Zone%", "Strike%", "Swing%",
                     "Spin Rate", "Extension", "IVB", "HB", "CSW%", "Arm Angle", "Bat Speed")

# Then your UI and server code
ui <- fluidPage(
  theme = bs_theme(preset = "united"),
  titlePanel("MLB/AAA/FSL Statcast Data"),
  
  fluidRow(
    # Left column (sidebar)
    column(width = 3,
      div(
        style = "height: 100%; padding: 10px; background-color: #f8f9fa; border-right: 1px solid #dee2e6;",
        p("X: ", a("(@TimStats)", href = "https://twitter.com/timstats")),
        p("Data Contains 2020-2025"),
        p("Data Updated To:", "2025-07-04"),
        p("Please avoid large multi-year, multi-league queries as they tend to crash the app"),
        p("Arm Angle for the previous week will populate on Mondays, bat speed is a daily update"),
        
        div(
          class = "mb-3",
          style = "background-color: white; padding: 15px; border-radius: 5px; margin-bottom: 15px;",
          selectInput("level", "Level:",
                      c("MLB", "AAA", "FSL"),
                      multiple = TRUE
          ),
          selectInput("group", "Group By:", 
                      c("Pitcher Name", "Pitcher ID", "Pitch Name", "Batter Name",
                        "Batter ID", "Season", "Level", "Pitch Type", "Stadium",
                        "Batter Home/Away", "Pitcher Home/Away", "Pitcher Team",
                        "Batter Team","Batter Side"),
                      multiple = TRUE
          ),
          selectInput("stats", "Select Stats:",
                      choices = available_stats,
                      multiple = TRUE
          ),
          dateRangeInput("date_range", "Date Range:",
                         start = "2025-03-18",
                         end = "2025-07-04",
                         #min = "2024-02-23",
                         max = Sys.Date() - 1
          )
        ),
        actionButton("add_filter", "Add Filter", class = "btn-primary mb-3"),
        uiOutput("filter_container"),
        hr(),
        actionButton("update_table", "Update Table", class = "btn-success")
      )
    ),
    
    # Right column (main content)
    column(width = 9,
      div(
        style = "padding: 10px;",
        tabulatorOutput("table", height = "800px")
      )
    )
  )
)

server <- function(input, output, session) {
  filters <- reactiveVal(list())
  counter <- reactiveVal(0)
  table_trigger <- reactiveVal(0)
  last_click <- reactiveVal(0)
  
  available_columns <- reactive({
    stat_cols <- setNames(
      input$stats,
      input$stats
    )
    c(stat_cols)
  })
  
  removeClicks <- reactiveVal(0)
  
  # observeEvent(input$update_table, {
  #   table_trigger(table_trigger() + 1)
  # })
  
  processed_data <- eventReactive(input$update_table, {
    req(input$level, input$stats, input$group)
    
    # Combine preprocessed data from selected levels
    combined_data <- bind_rows(
      if ("MLB" %in% input$level) MLB_processed,
      if ("AAA" %in% input$level) AAA_processed,
      if ("FSL" %in% input$level) FSL_processed
    ) %>%
    filter(between(as.Date(date), input$date_range[1], input$date_range[2]))
    # First group and calculate all stats
    grouped_data <- combined_data %>%
      group_by(across(all_of(input$group))) %>%
      summarise(
        Pitches = n(),
        'Avg Velo' = mean(start_speed, na.rm = TRUE),
        'Top Velo' = max(start_speed, na.rm = TRUE),
        'TimStuff' = mean(TimStuff, na.rm = TRUE),
        'Max EV' = max(hit_speed, na.rm = TRUE),
        'Avg EV' = mean(hit_speed, na.rm = TRUE),
        'EV90' = quantile(hit_speed, 0.9, na.rm = TRUE),
        'Avg LA' = mean(hit_angle, na.rm = TRUE),
        'stdevLA' = sd(hit_angle, na.rm = TRUE),
        'HardHit%' = mean(HardHitCheck[InPlayCheck == TRUE], na.rm = TRUE) * 100,
        'Barrel%' = mean(barrel[InPlayCheck == TRUE], na.rm = TRUE) * 100,
        'SwSpt%' = mean(SweetSpotCheck[InPlayCheck == TRUE], na.rm = TRUE) * 100,
        'xwOBA' = mean(expected_woba, na.rm = TRUE),
        'xDamage' = mean(expected_woba[InPlayCheck == TRUE], na.rm = TRUE),
        'Contact%' = mean(ConCheck[SwingCheck == TRUE], na.rm = TRUE) * 100,
        'ZCon%' = mean(ConCheck[ZoneCheck == TRUE & SwingCheck == TRUE], na.rm = TRUE) * 100,
        'ZSwing%' = mean(SwingCheck[ZoneCheck == TRUE], na.rm = TRUE) * 100,
        'OCon%' = mean(ConCheck[ZoneCheck == FALSE & SwingCheck == TRUE], na.rm = TRUE) * 100,
        'Chase%' = mean(SwingCheck[ZoneCheck == FALSE], na.rm = TRUE) * 100,
        'SwStr%' = mean(WhiffCheck, na.rm = TRUE) * 100,
        'Whiff%' = mean(WhiffCheck[SwingCheck == TRUE], na.rm = TRUE) * 100,
        'Zone%' = mean(ZoneCheck, na.rm = TRUE) * 100,
        'Strike%' = mean(StrikeCheck, na.rm = TRUE) * 100,
        'Swing%' = mean(SwingCheck, na.rm = TRUE) * 100,
        'Spin Rate' = mean(spin_rate, na.rm = TRUE),
        'Extension' = mean(extension, na.rm = TRUE),
        'IVB' = mean(IVB, na.rm = TRUE),
        'HB' = mean(HB, na.rm = TRUE),
        'VAA' = mean(vaa, na.rm = TRUE),
        't3VAA' = mean(vaa[TopZoneCheck == TRUE], na.rm = TRUE),
        'b3VAA' = mean(vaa[BotZoneCheck == TRUE], na.rm = TRUE),
        'CSW%' = mean(CSWCheck, na.rm = TRUE) * 100,
        'Arm Angle' = mean(arm_angle, na.rm = TRUE),
        'Bat Speed' = mean(bat_speed[CompSwingCheck == TRUE], na.rm = TRUE),
        .groups = 'drop'
      ) %>%
      mutate(
        across(c('xwOBA', 'xDamage'), ~round(., 3)),  # wOBA metrics to 3 decimals
        across(where(is.numeric) & !c('xwOBA', 'xDamage'), ~round(., 1))  # everything else to 1 decimal
      )
    
    # Then apply filters to the summarized data
    filtered_data <- grouped_data
    current_filters <- filters()
    
    for (filter in current_filters) {
      column <- input[[filter$column_id]]
      operator <- input[[filter$operator_id]]
      value <- input[[filter$value_id]]
      
      if (!is.null(column) && !is.null(operator) && !is.null(value) && value != "") {
        filtered_data <- switch(operator,
                                "eq" = filtered_data %>% filter(!!sym(column) == value),
                                "like" = filtered_data %>% filter(grepl(value, !!sym(column), ignore.case = TRUE)),
                                "gt" = filtered_data %>% filter(!!sym(column) > as.numeric(value)),
                                "lt" = filtered_data %>% filter(!!sym(column) < as.numeric(value)),
                                "gte" = filtered_data %>% filter(!!sym(column) >= as.numeric(value)),
                                "lte" = filtered_data %>% filter(!!sym(column) <= as.numeric(value)),
                                filtered_data
        )
      }
    }
    
    # Finally select only the requested columns
    filtered_data %>%
      select(all_of(c(input$group, input$stats)))
  })
  
  # Tabulator rendering with formatting
  output$table <- renderTabulator({
    req(processed_data())
     group_columns <- map(input$group, function(col) {
      list(
        field = col,
        title = col,
        width = 175,
        headerFilter = "input",  # Add text filtering
        headerFilterPlaceholder = paste("Filter", col)
      )
    })
    
    # Create column definitions for stat columns
    stat_columns <- map(input$stats, function(col) {
      list(
        field = col,
        title = col,
        width = 110,
        formatter = if(col %in% c("xwOBA", "xDamage")) "number" else "number",
        formatterParams = if(col %in% c("xwOBA", "xDamage")) {
          list(precision = 3)
        } else {
          list(precision = 1)
        }
      )
    })
    
    # Combine column definitions
    column_defs <- c(group_columns, stat_columns)
    
    tabulator(
      processed_data(),
      options = list(
        pagination = TRUE,           # Enable pagination
        paginationSize = 20,         # Set page size to 10 rows
        paginationSizeSelector = c(10, 20, 50, 100), # Allow users to change page size
        selectable = TRUE,
        layout = "fitColumns",
        columns = column_defs
      )
    )
  })
  # Add observers for filter management and other reactive elements
  observeEvent(input$add_filter, {
    isolate({
      current_counter <- counter()
      filter_id <- paste0("filter_", current_counter)
      
      new_filter <- list(
        id = filter_id,
        column_id = paste0("column_", filter_id),
        operator_id = paste0("operator_", filter_id),
        value_id = paste0("value_", filter_id)
      )
      
      current_filters <- filters()
      filters(c(current_filters, list(new_filter)))
      counter(current_counter + 1)
    })
  })
  
  observe({
    current_filters <- filters()
    
    lapply(current_filters, function(filter) {
      observeEvent(input[[paste0("remove_", filter$id)]], {
        isolate({
          removeClicks(removeClicks() + 1)
          new_filters <- current_filters[sapply(current_filters, function(f) f$id != filter$id)]
          filters(new_filters)
        })
      }, ignoreInit = TRUE, ignoreNULL = TRUE)
    })
  })
  
  # Filter container UI
  output$filter_container <- renderUI({
    removeClicks()
    current_filters <- filters()
    
    lapply(current_filters, function(filter) {
      div(
        class = "mb-1",
        div(
          style = "display: flex; gap: 10px; align-items: center;",
          selectInput(filter$column_id, "Column",
                      choices = available_columns(),
                      width = "200px",
                      selected = input[[filter$column_id]]
          ),
          selectInput(filter$operator_id, "Stat",
                      choices = c(
                        "=" = "eq",
                        "contains" = "like",
                        ">" = "gt",
                        "<" = "lt",
                        ">=" = "gte",
                        "<=" = "lte"
                      ),
                      width = "100px",
                      selected = input[[filter$operator_id]]
          ),
          textInput(filter$value_id, "Value", 
                    value = input[[filter$value_id]],
                    width = "150px"
          ),
          actionButton(
            paste0("remove_", filter$id),
            icon("trash"),
            class = "btn-danger btn-sm",
            style = "margin-top: 22px;"
          )
        )
      )
    })
  })
}

# Run the application 
shinyApp(ui = ui, server = server)