#!/bin/bash
# file: gsl__db_manager
# Folder: /var/lib/gsl/scripts
# By echolib
# License: GNU AFFERO GENERAL PUBLIC LICENSE Version 3, 19 November 2007


#======================================================================
# Get Post Hash & Status From Database
#======================================================================
gsl__db_get_post_datas() {
gsl_db_post_hash=0

if [[ -f "$gsl_file_db_post" ]];then
  
  gsl_db_post_hash=`
  awk -F: 'NR == 1 {print $3}' \
      "$gsl_file_db_post"`
  
  ! [[ "$gsl_db_post_hash" ]] \
    && gsl_db_post_hash=0
  
  gsl_db_post_status=`
  awk -F: 'NR == 2 {print $2}' \
      "$gsl_file_db_post"`

else
  # if check process, do not show (useless)
  case "$1" in
    check) true ;;
    *)
      gsl__logs_print \
        "$gsl_log_w" \
        "DB" \
        "Post" \
        "Missing for $gsl_post. Check it first" \
        "$gsl_file_db_post"
      gsl_checker_war=true
      ;;
  esac
fi
}

#======================================================================
# Get Post Hash and Compare from Database
#======================================================================
gsl__db_compare_post_hash() {
gsl_checker_war=true

if (( $gsl_post_hash == $gsl_db_post_hash ));then

  gsl__logs_print \
    "$gsl_log_i" \
    "Post" \
    "Hash" \
    "$gsl_post checked with hash:$gsl_db_post_hash" \
    "${PWD}/$gsl_post"

else

  gsl_post_new_hash=true
  case "$gsl_db_post_hash" in
    0)
      gsl__logs_print \
        "$gsl_log_w" \
        "Post" \
        "New" \
        "$gsl_post not yet checked" \
        "${PWD}/$gsl_post"
      gsl_checker_war=true
      ;;
    *)
      gsl__logs_print \
        "$gsl_log_w" \
        "Post" \
        "Hash" \
        "$gsl_post Changed ($gsl_post_hash) !" \
        "${PWD}/$gsl_post"
      gsl_checker_war=true
      ;;
  esac

fi
}

#======================================================================
# Set Post Status in Database according to proceess
#======================================================================
gsl__db_set_post_status() {
case "$1" in
  chk)
    case "$gsl_db_post_status" in
      ""|chk)
        [[ "$gsl_post_new_hash" ]] || return # Do Nothing if same Hash
        gsl__db_create_post "$1"
        ;;
    esac
    ;;

  wip)
    case "$gsl_db_post_status" in
      chk|www)
        sed -i "2s/.*/Status:$1/" "$gsl_file_db_post" && \
        gsl__logs_print \
          "$gsl_log_w" \
          "DB" \
          "Post" \
          "Status:$1 ; $gsl_post" \
          "$gsl_file_db_post"
          gsl_checker_war=true
        ;;
    esac
    ;;

  www)
    case "$gsl_db_post_status" in
      wip)
        sed -i "2s/.*/Status:$1/" "$gsl_file_db_post" && \
        gsl__logs_print \
          "$gsl_log_w" \
          "DB" \
          "Post" \
          "Status:$1 ; $gsl_post" \
          "$gsl_file_db_post"
          gsl_checker_war=true
        ;;
    esac
    ;;
esac
}

#======================================================================
# Create DB File from Data Post
#======================================================================
gsl__db_create_post() {
if [[ "$gsl_checker_err" ]];then
  [[ -f "$gsl_file_db_post" ]] \
    && rm -f "$gsl_file_db_post" \
    && gsl__logs_print \
        "$gsl_log_w" \
        "DB" \
        "Delete" \
        "file ; error in $gsl_post" \
        "$gsl_file_db_post"
  return
fi

touch "$gsl_file_db_post"

# Main Print
printf '%s\n%s\n%s\n' \
       "Post:${PWD}/$gsl_post:$gsl_post_hash:$gsl_post_size" \
       "Status:$1" \
       "`cat "$gsl_db_tmp"`" \
     > "$gsl_file_db_post"

# Stats Print
printf '\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n' \
       "Stats" \
       "Author:$gsl_header_author" \
       "Date:$gsl_header_date" \
       "Words:$gsl_stat_words" \
       "Parag:$gsl_stat_p" \
       "Links:$gsl_stat_link:$gsl_stat_links" \
       "Strongs:$gsl_stat_strongs" \
       "Bolds:$gsl_stat_bolds"\
       "Italics:$gsl_stat_italics" \
       "Abbrs:$gsl_stat_abbr:$gsl_stat_abbrs" \
       "Images:$gsl_stat_image" \
       "Files:$gsl_stat_file:$gsl_count_files" \
       "Cites:$gsl_stat_bq" \
       "ICodes:$gsl_stat_icode" \
       "FCodes:$gsl_stat_fcode" \
    >> "$gsl_file_db_post"

gsl__logs_print \
  "$gsl_log_w" \
  "DB" \
  "Create" \
  "Datas from $gsl_post (status: $1)" \
  "$gsl_file_db_post"
}