mkay

#!/bin/bash
BASE_DIR=.diary
CONFIG_FILE=${BASE_DIR}/config
ENTRIES_DIR=${BASE_DIR}/entries
FULL_DIARY_FILE=${BASE_DIR}/full.md

[ ! -d ${BASE_DIR} ] && mkdir ${BASE_DIR}
if [ -f ${CONFIG_FILE} ]; then
  # echo "Loading config file.."
  source ${CONFIG_FILE}
fi

FILES=${FILES:-Readme.md}
START_TAG="<!-- ${HINT}START mkay-diary -->"
END_TAG="<!-- ${HINT}END mkay-diary -->"
START_EXPLICIT_TAG="<!-- ${HINT}START mkay-diary generated diary please keep comment here to allow auto update -->"

setup() {
 
 local component=$1
 local value=$2
 
 if [ -z "$component" ]; then
  # List config
  [ -f ${CONFIG_FILE} ] && cat ${CONFIG_FILE}
 else
  touch ${CONFIG_FILE}
  escaped_value=$(echo -n "$value" | sed 's/"/\\"/g')
  case $component in
   editor)
    echo "DIARY_EDITOR=\"${escaped_value}\"" >> ${CONFIG_FILE}
    ;;
  esac
 fi
}

edit_or_new_entry() {
 #local arg1=$1
 local month="./.diary/entries/$( date +%Y/%m )"
 #if [ -z "$arg1" ]; then
 # local folder=`basename $(pwd)`
 # echo "folder=${folder}"
 # month="${HOME}/.diary/${folder}/$( date +%Y/%m )"
 #fi
 local day="$( date +%d )"
 local entry="$month/$day.md"

 #echo "month=${month}"
 #echo "entry=${entry}"
 mkdir -p "$month"
 [ -f "$entry" ] || echo "## Diary for $(date +%D )" > "$entry"
 #bash -c "${DIARY_EDITOR} $entry"
 #echo "DIARY_EDITOR=[${DIARY_EDITOR}]"
 
 # Not working:
 #cmd=()
 #for i in ${DIARY_EDITOR}; do
 # cmd+=($i)
 #done
 #cmd+=(${DIARY_EDITOR})
 #cmd+=("$entry")
 #"${cmd[@]}"
 bash -c "${DIARY_EDITOR} \"$entry\""
}

search() {
  local terms=$1
  echo "Searching entries with [$terms]..."
  # TODO: make it work on linux too...
  find ${ENTRIES_DIR} -type f -name "*.md" -print0 | xargs -0 grep -i "${terms}"
  echo -e ""
}

index() {
  echo -e "\n[//]: # (DO NOT EDIT THIS FILE. Its content is automatically generated from other files.)\n" > ${FULL_DIARY_FILE}
  find ${ENTRIES_DIR} -type f -name "*.md" | sort | xargs cat >> ${FULL_DIARY_FILE}
}

generate() {
  local files="Readme.md"
  if [ ! -z "$1" ]; then
    files=$@
  fi
  index
  local payload=`cat ${FULL_DIARY_FILE}`
  local file
  for file in ${files}; do
    if [ ! -f $file ]; then
      echo "Cannot not find $file."
      return 1
    fi
    explicitTagPresent=$(cat ${file} | grep "${START_EXPLICIT_TAG}")
    if [ ! -z "${explicitTagPresent}" ]; then
      sed -n "1,/${START_EXPLICIT_TAG}/p;/${END_TAG}/,\$p" ${file} > /tmp/diary.1.tmp
      local header="\n# Diary"
      if [ "${INCLUDE_HEADER}" = "false" ]; then
        header=""
      fi
      sed -e "/${START_EXPLICIT_TAG}/{s/${START_EXPLICIT_TAG}/${START_EXPLICIT_TAG}${header}/;" -e "r ${FULL_DIARY_FILE}" -e "}" /tmp/diary.1.tmp > /tmp/diary.2.tmp # > ${file}.tmp
      mv /tmp/diary.2.tmp $file
    else
      sed -e "/${START_TAG}/{s/${START_TAG}/${START_EXPLICIT_TAG}\n# Diary\n/g;" -e "r ${FULL_DIARY_FILE}" -e "}" ${file} > /tmp/diary.0.tmp # > ${file}.tmp
      mv /tmp/diary.0.tmp $file
    fi
    # cat ${file} | sed '/<!-- START mkay-diary -->/{ s/<!-- START mkay-diary -->//g ; r '${FULL_DIARY_FILE}' ; }' > ${file}.tmp
  done
  return 0
}

help() {
 LINE=()
 LINE+=("Usage:\n$0 [command] [options]")
 LINE+=("\nwhere commands can be:")
 LINE+=("\n i|index\t\t\t# Concat all entries into one diary file.")
 LINE+=("\n e|entry|edit\t\t# Create or edit daily entry.")
 LINE+=("\n c|cat\t\t\t# Display all entries in chronological order")
 LINE+=("\n s|search [terms]\t\t# Search for terms in all entries.")
 LINE+=("\n c|config [component] [value]\t\t# List or set configuration.")
 LINE+=("\n g|generate \t\t\t\t# Replace tags in Readme.md file.")
 
 
 LINE+=("\n")
 echo -e "${LINE[@]}"
}

case $1 in
  i | index)
   index
   ;;
  e | entry | edit)
   edit_or_new_entry $2
   ;;
  s | search)
   search $2
   ;;
  c | config)
   setup "$2" "$3"
   ;;
  g | generate)
   shift
   generate $@
   ;;
  *)
   help
   ;;
esac