app.R

library(shiny)
library(plotly)
library(gridlayout)
library(bslib)
library(DT)
library(rsconnect)
library(baseballr)
library(dplyr)
library(tidyverse)
library(rvest)
library(ggplot2)
library(janitor)
library(ggthemes)
library(ggpubr)
library(jsonlite)
library(utils)
Sys.setenv(TZ='EST')

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))
} 
pitcher_summary <- function(game_pk,date){
  gdate <- as.Date.character(date)
  gdate <- as.Date(gdate)
  tmilb <- mlb_pbp(game_pk)
  tmilb <- tmilb |>
    filter(type == "pitch")
  tmilb <- tmilb |>
    select(matchup.batter.fullName,matchup.batter.id,matchup.pitcher.fullName,
           matchup.pitcher.id,result.event,details.description,details.type.description,
           result.description,pitchData.startSpeed,
           pitchData.plateTime,pitchData.zone,pitchData.breaks.spinRate,pitchData.extension,
           pitchData.coordinates.pX,pitchData.coordinates.pZ,pitchData.coordinates.x0,
           pitchData.coordinates.y0,pitchData.coordinates.z0,pitchData.coordinates.aX,
           pitchData.coordinates.aY,pitchData.coordinates.aZ,pitchData.coordinates.vX0,
           pitchData.coordinates.vZ0,pitchData.coordinates.vY0,pitchData.coordinates.pfxX,
           pitchData.coordinates.pfxZ,pitchData.breaks.breakVerticalInduced,pitchData.breaks.breakHorizontal,
           hitData.launchSpeed,hitData.launchAngle,hitData.totalDistance,details.isInPlay,last.pitch.of.ab)
  colnames(tmilb) <- c("Batter Name","Batter ID","Pitcher Name","Pitcher ID",
                       "result","description","pitch_name",
                       "des","start_speed","plateTime","zone","spin_rate",
                       "extension","px","pz","x0","y0","z0","ax","ay","az",
                       "vx0","vz0","vy0","pfxX","pfxZ","IVB","HB","hit_speed",
                       "hit_angle","hit_distance","inPlay","lastPitch")
  tmilb <- is_barrel(tmilb)
  tmilb <- tmilb |>
    mutate(is_strike_swinging = ifelse(description == "Swinging Strike" |
                                         description == "Foul Tip",TRUE,FALSE))
  tmilb <- tmilb |>
    mutate(date = gdate)
  return(tmilb)
  
}
break_plot <- function(game){
  ggplot()+
    geom_point(game,mapping = 
                 aes(x=HB, y = IVB,color = pitch_name),size = 4) +
    geom_vline(xintercept = 0,  color = "lightblue",linewidth = 1,linetype = 4)+
    geom_hline(yintercept = 0,  color = "lightblue",linewidth = 1,linetype = 4)+
    xlab("Horizontal Break from Pitcher's Perspective (in) ")+
    ylab("Induced Verical Break (in)") +
    xlim(-25,25) +
    ylim(-25,25) +
    ggthemes::theme_igray()+
    theme(panel.grid.minor = element_line(color = "gray",
                                          size = 0.25,
                                          linetype = 1))+
    guides(color = guide_legend(title = "Pitch Type"))
  
}
pitch_plot <- function(game){
  ggplot()+
    geom_point(game,mapping = 
                 aes(x=px, y = pz,color = pitch_name),size = 3.5) +
    geom_segment(aes(x=-0.71,xend = 0.71, y = 1.5,yend = 1.5))+
    geom_segment(aes(x=-0.71,xend = 0.71, y = 3.6,yend = 3.6))+
    geom_segment(aes(x= 0.71,xend = 0.71, y = 1.5,yend = 3.6))+
    geom_segment(aes(x=-0.71,xend = -0.71, y = 1.5,yend =3.6))+
    xlab(" ")+
    ylab(" ") +
    xlim(-3,3)+
    ylim(0.2,4)+
    ggthemes::theme_few()+
    guides(color = guide_legend(title = "Pitch Type"))+
    theme(axis.text.x=element_blank(), 
          axis.ticks.x=element_blank(), 
          axis.text.y=element_blank(), 
          axis.ticks.y=element_blank())
}
summary_table <- function(game){
  rows <- nrow(game)
  sumtable <- game |>
    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)) |>
    mutate(team_fielding_id = ifelse(description == "Called Strike" |
                                       description == "Swinging Strike" |
                                       description == "Swinging Strike (Blocked)",1,0))|>
    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)) |>
    mutate(is_strike_swinging = ifelse(is_strike_swinging == TRUE,1,0)) |>
    mutate(Pitch = pitch_name) |>
    group_by(Pitch)|>
    summarize(Pitches = n(),
              'Pitch%' = round(sum(Pitches)/sum(rows) * 100,digits = 1),
              'Avg. Velo' = round(sum(start_speed)/Pitches,digits = 1),
              'Spin Rate' = round(sum(spin_rate)/ Pitches,digits = 1),
              'Extension' = mean(extension,na.rm = TRUE),
              'IVB' = mean(IVB,na.rm=TRUE),
              'HB' = mean(HB,na.rm = TRUE),
              'VAA' = mean(VAA,na.rm= TRUE),
              'CSW%' = round(sum(team_fielding_id)/
                               sum(!is.na(team_fielding_id))*100,digits = 1),
              'Whiff%' = round(sum(is_strike_swinging)/
                                 sum(swing)*100,digits = 1))
}
#MLB ID Stuff
mlbid <- mlb_schedule(season = 2024, level_ids = "1")
mlbteamH <- mlbid |>
  select(teams_home_team_name)
mlbteamH <- distinct(mlbteamH)
mlbteamA <- mlbid |>
  select(teams_away_team_name)
mlbteamA <- distinct(mlbteamA)
#AAA ID Stuff
aaaid <- mlb_schedule(season = 2024, level_ids = "11")
aaateamH <- aaaid |>
  select(teams_home_team_name)
aaateamH <- distinct(aaateamH)
aaateamA <- aaaid |>
  select(teams_away_team_name)
aaateamA <- distinct(aaateamA)
#FSL ID Stuff
fslid <- mlb_schedule(season = 2024, level_ids = "14")
fslid <- fslid |>
  filter(teams_home_team_name == "Daytona Tortugas" |
           teams_home_team_name == "Jupiter Hammerheads" |
           teams_home_team_name == "Palm Beach Cardinals" |
           teams_home_team_name == "St. Lucie Mets" |
           teams_home_team_name == "Bradenton Marauders" |
           teams_home_team_name == "Clearwater Threshers" |
           teams_home_team_name == "Dunedin Blue Jays" |
           teams_home_team_name == "Fort Myers Mighty Mussels" |
           teams_home_team_name == "Lakeland Flying Tigers" |
           teams_home_team_name == "Tampa Tarpons")
fslteamH <- fslid |>
  select(teams_home_team_name)
fslteamH <- distinct(fslteamH)
fslteamA <- fslid |>
  select(teams_away_team_name)
fslteamA <- distinct(fslteamA)
#SB ID Stuff
sbid <- mlb_schedule(season = 2024, level_ids = "21")
sbteamH <- sbid |>
  select(teams_home_team_name)
sbteamH <- distinct(sbteamH)
sbteamA <- sbid |>
  select(teams_away_team_name)
sbteamA <- distinct(sbteamA)
ui <- grid_page(
  layout = c(
    "header  header",
    "sidebar area2 "
  ),
  row_sizes = c(
    "40px",
    "1fr"
  ),
  col_sizes = c(
    "280px",
    "1fr"
  ),
  gap_size = "1rem",
  sidebarPanel(
    dateInput("date",
              "Date:"),
    selectizeInput("level","Level:",c("MLB","AAA","FSL","Spring Breakout")),
    selectizeInput("homeT","Home Team:",mlbteamH[,1]),
    selectizeInput("awayT", "Away Team:",mlbteamA[,1]),
    selectizeInput("gamenum","Game Number (For Doubleheaders):",c("1","2")),
    actionButton("update","Find Pitchers",icon("magnifying-glass"),
                 style = "color: #FFFFFF; background-color: #0077B6"),
    selectizeInput("pitcher","Pitcher (For Spring Breakout if pitchers not loading, try changing game number)",c(" ")),
    selectizeInput("league","MLB or MiLB Photo",c("MLB","MiLB")),
    textInput("title","Card Title"),
    actionButton("update1","Make Card",icon("plus"),
                 style = "color: #FFFFFF; background-color: #0077B6"),
    width = 15,
  ),
  grid_card_text(
    area = "header",
    content = "2024 MLB/AAA/FSL Summary Cards (BETA: Meant for Computers, Set Zoom to 100% for best use)",
    alignment = "start",
    is_title = FALSE
  ),
  grid_card(
    area = "area2",
    full_screen = TRUE,
    card_header(textOutput(outputId = "cardTitle")),
    card_body(
      gap = "0px",
      grid_container(
        layout = c(
          "area3      chart      chart      chart     ",
          "breakgraph breakgraph strikezone strikezone"
        ),
        row_sizes = c(
          "1fr",
          "1fr"
        ),
        col_sizes = c(
          "1fr",
          "1fr",
          "1fr",
          "1fr"
        ),
        gap_size = "0px",
        grid_card_plot(area = "breakgraph"),
        grid_card_plot(area = "strikezone"),
        grid_card(
          area = "chart",
          card_body(
            tableOutput(
              outputId = "myTable"
            ),
          )
        ),
        grid_card(
          area = "area3",
          plotOutput(outputId = "picture")
        )
      )
    )
  )
)


server <- function(input, output) {
  # game <- reactive(pitcher_summary(input$game_pk))
  # id <- reactive(as.character(game()[1,4]))
  observeEvent(input$level,{
    if(input$level == "AAA"){
      updateSelectizeInput(session = getDefaultReactiveDomain(),"homeT","Home Team:",choices =  aaateamH[,1])
      updateSelectizeInput(session = getDefaultReactiveDomain(),"awayT","Away Team:",choices =  aaateamA[,1])
    }
    if(input$level == "FSL"){
      updateSelectizeInput(session = getDefaultReactiveDomain(),"homeT","Home Team:",choices =  fslteamH[,1])
      updateSelectizeInput(session = getDefaultReactiveDomain(),"awayT","Away Team:",choices =  fslteamA[,1])
    }
    if(input$level == "MLB"){
      updateSelectizeInput(session = getDefaultReactiveDomain(),"homeT","Home Team:",choices =  mlbteamH[,1])
      updateSelectizeInput(session = getDefaultReactiveDomain(),"awayT","Away Team:",choices =  mlbteamA[,1])
    }
    if(input$level == "Spring Breakout"){
      updateSelectizeInput(session = getDefaultReactiveDomain(),"homeT","Home Team:",choices =  sbteamH[,1])
      updateSelectizeInput(session = getDefaultReactiveDomain(),"awayT","Away Team:",choices =  sbteamA[,1])
    }
  })
  observeEvent(input$update,{
    if(input$level == "AAA"){
      pname <- aaaid |>
                filter(date == input$date) |>
                filter(teams_home_team_name == input$homeT) |>
                filter(teams_away_team_name == input$awayT) |>
                filter(game_number == input$gamenum)
      pname <- tryCatch({pitcher_summary(pname[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      updateSelectizeInput(session = getDefaultReactiveDomain(),"pitcher","Pitcher:(For Spring Breakout if pitchers not loading, try changing game number)",choices =  pname[,3])
    }
    if(input$level == "FSL"){
      pname <- fslid |>
        filter(date == input$date) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      pname <- tryCatch({pitcher_summary(pname[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      updateSelectizeInput(session = getDefaultReactiveDomain(),"pitcher","Pitcher:(For Spring Breakout if pitchers not loading, try changing game number)",choices =  pname[,3])
    }
    if(input$level == "MLB"){
      pname <- mlbid |>
        filter(date == as.character.Date(input$date)) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      pname <- tryCatch({pitcher_summary(pname[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      updateSelectizeInput(session = getDefaultReactiveDomain(),"pitcher","Pitcher:(For Spring Breakout if pitchers not loading, try changing game number)",choices =  pname[,3])
    }
    if(input$level == "Spring Breakout"){
      pname <- sbid |>
                filter(date == input$date) |>
                filter(teams_home_team_name == input$homeT) |>
                filter(teams_away_team_name == input$awayT) |>
                filter(game_number == input$gamenum)
      pname <- tryCatch({pitcher_summary(pname[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      updateSelectizeInput(session = getDefaultReactiveDomain(),"pitcher","Pitcher:(For Spring Breakout if pitchers not loading, try changing game number)",choices =  pname[,3])
    }
  })
  observeEvent(input$update1,{
    if(input$level == "MLB"){
      id <- mlbid |>
        filter(date == as.character.Date(input$date)) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      game <- tryCatch({pitcher_summary(id[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      game <- game |>
        filter(`Pitcher Name`  == input$pitcher)
      id <- as.character(game[1,4])
    }
    if(input$level == "FSL"){
      id <- fslid |>
        filter(date == as.character.Date(input$date)) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      game <- tryCatch({pitcher_summary(id[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      game <- game |>
        filter(`Pitcher Name`  == input$pitcher)
      id <- as.character(game[1,4])
    }
    if(input$level == "AAA"){
      id <- aaaid |>
        filter(date == as.character.Date(input$date)) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      game <- tryCatch({pitcher_summary(id[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      game <- game |>
        filter(`Pitcher Name`  == input$pitcher)
      id <- as.character(game[1,4])
    }
    if(input$level == "Spring Breakout"){
      id <- sbid |>
        filter(date == as.character.Date(input$date)) |>
        filter(teams_home_team_name == input$homeT) |>
        filter(teams_away_team_name == input$awayT) |>
        filter(game_number == input$gamenum)
      game <- tryCatch({pitcher_summary(id[,6],input$date)},error=function(e){cat("ERROR :",conditionMessage(e), "\n")})
      game <- game |>
        filter(`Pitcher Name`  == input$pitcher)
      id <- as.character(game[1,4])
    }
    output$breakgraph <- renderPlot({
      break_plot(game)
    })
    
    output$strikezone <- renderPlot({
      pitch_plot(game)
    })
    
    output$myTable <- renderTable({
      t <- summary_table(game)
      return(t)
    },width = '1150px',digits = 1,na = "NA",align = 'left')
    output$picture <- renderImage({
      if(input$league == "MLB"){
        y <- paste("https://midfield.mlbstatic.com/v1/people/","/mlb/300?circle=false",sep = id)
      }
      if(input$league == "MiLB"){
        y <- paste("https://midfield.mlbstatic.com/v1/people/","/milb/300?circle=false",sep = id)
      }
      photo <- tempfile()
      download.file(y,photo,mode = 'wb')
      list(
        src = photo
      )
    },deleteFile = TRUE)
    output$cardTitle <- renderText(
      title <- paste(input$title,"Made by @TimStats", sep = " ")
    )
  })
}


shinyApp(ui, server)