Quickly search for ASMR music before starting to code

bozeman.sh

#!/bin/bash
#
# Search and play music from terminal. Like chop chop.
# There is enough fancy shit which we call RAM Diggers
#
# Usage:
# ./bozeman.sh <search term>
#
# Example ./bozeman.sh coffee shop noise

SEARCH_COUNT=10
TMP_FILE_NAME="resp.json"
LOG_LEVEL="${LOG_LEVEL:-info}"

declare LOLCAT_FOUND

err_whaddafug="incorrect invocation"

function debug() {
  if [[ "$LOG_LEVEL" == "debug" ]]; then
    printf "$@"
    printf "\n"
  fi
}

function usage() {
  echo "Usage: ./bozeman <seach term>"
}

function rage_quit() {
  err="$1"
  msg="$2"

  if [[ -z "$err" ]]; then
    echo "$err_whaddafug"
    exit 1
  fi

  printf "error: %s %s\n" "$err" "$msg"
  exit 1
}

function assert_empty() {
  variablee="$1"
  value="$2"
  msg="$3"

  if [[ -z "$variablee" ]]; then
    echo "$err_whaddafug"
  fi

  if [[ -z "$value" ]]; then
    echo "$1 value should not have been empty"
    [[ -n "$msg" ]] && echo "$msg"

    exit 1
  fi
}

err_binary_missing="err_binary_missing"

function check_requirements() {
  if [[ -z "$(which youtube-dl)" && -z "$(which yt-dl)" && -z "$(which ytdl)" && -z "$(which yt-dlp)" ]]; then
    rage_quit "$err_binary_missing" "youtube-dl"
  fi


  if [[ -z "$(which jq)" ]]; then
    rage_quit "$err_binary_missing" "jq"
  fi

  # hard to imagine, but shit does go wrong
  if [[ -z "$(which fzf)" ]]; then
    rage_quit "$err_binary_missing" "fzf"
  fi

  if [[ -n "$(which lolcat)" ]]; then
    LOLCAT_FOUND=true
  fi
}

err_search_term_empty="err_search_term_empty"

function get_search_results() {
  search_term="$1"
  assert_empty "search term" "$search_term" "$err_search_term_empty"

  waiting_msg="Looking for $search_term"
  if [[ -n "$LOLCAT_FOUND" ]]; then
    waiting_msg=$(echo "$waiting_msg" | lolcat -f)
  fi
  
  printf "%s" "$waiting_msg"

  yt-dlp \
    "ytsearch${SEARCH_COUNT}:${search_term}" \
    --dump-json \
    --no-playlist \
    --flat-playlist \
    --skip-download \
    --match-filter 'url!*=/shorts/' > "$TMP_FILE_NAME"

  if [[ "$?" -eq 1 ]]; then
    echo "something went wrong retry"
    exit 1
  fi
}

function render_search_list() {
  assert_empty "TMP_FILE_NAME" "$TMP_FILE_NAME" "youtube-dl failed to fetch results. try again."
  search_term="$1"

  entries=""

  while read -r line; do
    entry=$(echo "$line" | jq -r '[.title, .url] | @csv')

    if [[ -n "$entry" ]]; then
      entries="${entries} \n ${entry}"
    fi
  done < "$TMP_FILE_NAME"

  debug "entries $entries"

  assert_empty "playlist" "$entries" "unable to process results. try again."

  fzf_window_title=" Results for ${search_term} "

  if [[ -n "$LOLCAT_FOUND" ]]; then
    fzf_window_title=$(echo "$fzf_window_title" | lolcat -f)
  fi


  # https://github.com/catppuccin/fzf
  # FZF_DEFAULT_OPTS=$FZF_DEFAULT_OPTS" \
  #   --color=bg+:#ccd0da,bg:#eff1f5,spinner:#dc8a78,hl:#d20f39 \
  #   --color=fg:#4c4f69,header:#d20f39,info:#8839ef,pointer:#dc8a78 \
  #   --color=marker:#dc8a78,fg+:#4c4f69,prompt:#8839ef,hl+:#d20f39" \
    
  selected=$(printf %b "$entries" | FZF_DEFAULT_OPTS=$FZF_DEFAULT_OPTS fzf --height=50% --border --border-label="╢ $fzf_window_title ╟" --color=label:italic:black)
  echo "$selected"
}

function play() {
  play_item="$1"
  assert_empty "play item" "$play_item" "couldn't find entry to play. exiting"

  debug "playitem" "$play_item"

  play_item_rev=$(echo "$play_item" | rev)

  url=$(echo "$play_item_rev" | cut -d',' -f1 | rev | tr -d '\"')
  title=$(echo "$play_item_rev" | cut -d',' -f2- | rev | tr -d '\"')

  playing_msg="Now Playing: $title"

  if [[ -n "$LOLCAT_FOUND" ]]; then
    playing_msg=$(echo "$playing_msg" | lolcat -f)
  else 
    echo 
  fi
  
  mpv --no-video --volume=50 "$url"
  return "$?"
}


if [[ "$#" -eq 0 ]]; then
  usage
  exit 1
fi

# get_search_results "$@"
# when mpv quits, re-render the list and wait for input
# this can be extended to play one by one of whatever
# 

function loop() {
  # trap loop 2 6

  debug "$1"
  selected=$(render_search_list "$1")
  play "$selected"
  
  res="$?"
  debug "rest $res"

  if [[ "$res" -eq 0 ]]; then
    loop
  fi
}

check_requirements

get_search_results "$*"
loop "$*"