#!/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 FROM DB posts.db
#=======================================================================
gsl__db_post_hash() {
gsl_db_post_hash=`
grep  "$gsl_post" \
      "$gsl_file_db_posts" \
    | awk -F"|" '{print $3}'`
}

#=======================================================================
# From checkers (bcodes,images,files): Write DB
#=======================================================================
gsl__db_line_file() {
gsl__db_exists "$gsl_file_db_files" "$gsl_post_hf_2"
gsl_db_line_file="$gsl_post_hf_2:$gsl_file_csum"

if [[ "$gsl_db_file_hash" ]];then

  sed -i "${gsl_db_file_line_nbr}s,.*,$gsl_db_line_file," \
         "$gsl_file_db_files"

else

  echo   "$gsl_post_hf_2:$gsl_file_csum" \
      >> "$gsl_file_db_files"

fi
}
#=======================================================================
# Check Post exists and get line NBR in DB | $1 DB file $2 TERM
#=======================================================================
gsl__db_exists() {
case "$1" in
  "$gsl_file_db_posts")
    gsl_db_post_exists=`
    grep -n "$gsl_post" "$1"`
    if [[ "$gsl_db_post_exists" ]];then
      gsl_db_post_line_nbr=`
      awk -F":" '{print $1}' <<< "$gsl_db_post_exists"`
      gsl_db_post_status=`
      awk -F"|" '{print $5}' <<< "$gsl_db_post_exists"`
    fi
    ;;
  "$gsl_file_db_stats")
    gsl_db_stat_exists=`
    grep -n "$gsl_post" "$1"`
    if [[ "$gsl_db_stat_exists" ]];then
      gsl_db_stat_line_nbr=`
      awk -F":" '{print $1}' <<< "$gsl_db_stat_exists"`
    fi
    ;;
  "$gsl_file_db_files")
    gsl_db_file_exists=`grep -n "$2" "$1"`
    if [[ "$gsl_db_file_exists" ]];then
      gsl_db_file_line_nbr=`
      awk -F: '{print $1}' <<< "$gsl_db_file_exists"`
      gsl_db_file_hash=`
      awk -F: '{print $3}' <<< "$gsl_db_file_exists"`
    fi
    ;;
esac
}

#=======================================================================
# From gsl__loop_posts: Write DB
#=======================================================================
gsl__db_line_post() {
case "$gsl_process" in
  Checked)
    #-------------------------------------------------------------------
    # Check if post exists in DB stats.db and get line
    #-------------------------------------------------------------------
    gsl_db_stat_line=`
    printf '%s%s%s%s%s%s%s%s%s%s\n' \
           "$gsl_post|" \
           "$gsl_post_stat_w|" \
           "$gsl_post_stat_p|" \
           "$gsl_post_stat_abbr|" \
           "$gsl_post_stat_link|" \
           "$gsl_post_stat_image|" \
           "$gsl_post_stat_file|" \
           "$gsl_post_stat_bq|" \
           "$gsl_post_stat_bcode|" \
           "${gsl_post_stat_mdb// /|}|"`

    if ! [[ "$gsl_checker_err" ]];then
      gsl__db_exists "$gsl_file_db_stats"
      if [[ "$gsl_db_stat_line_nbr" ]];then
        sed -i "${gsl_db_stat_line_nbr}s,.*,$gsl_db_stat_line," \
               "$gsl_file_db_stats" && \
        gsl__logs_print \
          "$gsl_log_w" \
          "DB" \
          "Stat" \
          "Line:$gsl_db_stat_line_nbr  $gsl_post" \
          "$gsl_file_db_stats"
      else
        echo "$gsl_db_stat_line" >> "$gsl_file_db_stats" && \
        gsl__logs_print \
          "$gsl_log_w" \
          "DB" \
          "Stat" \
          "Line:NEW $gsl_db_stat_line" \
          "$gsl_file_db_stats"
      fi
    fi
    
    #-------------------------------------------------------------------
    # Check if post exists in DB posts.db and get line / status
    #-------------------------------------------------------------------
    gsl__db_exists "$gsl_file_db_posts"
    if [[ "$gsl_checker_err" ]] && [[ "$gsl_db_post_line_nbr" ]];then
      sed -i "${gsl_db_post_line_nbr}d" "$gsl_file_db_posts" && \
      gsl__logs_print \
          "$gsl_log_w" \
          "DB" \
          "Post" \
          "Line:$gsl_db_post_line_nbr removed. Error in $gsl_post" \
          "$gsl_file_db_posts"
      return
    fi

    gsl_db_post_line=`
    printf  '%s%s%s%s%s%s%s\n' \
            "$gsl_post_type|" \
            "$gsl_post|" \
            "$gsl_post_hash|" \
            "$gsl_post_size|" \
            "$gsl_process|" \
            "${PWD}/$gsl_post|"\
            "$gsl_db_post_files"`

    if [[ "$gsl_db_post_exists" ]];then
      sed -i  "${gsl_db_post_line_nbr}s,.*,$gsl_db_post_line," \
              "$gsl_file_db_posts" && \
      gsl__logs_print \
        "$gsl_log_w" \
        "DB" \
        "Post" \
        "Line:REPLACED - $gsl_post - Hash: $gsl_post_hash" \
        "$gsl_file_db_posts"
      gsl_checker_war=true
    
    else
      echo  "$gsl_db_post_line" \
         >> "$gsl_file_db_posts" && \
      gsl__logs_print \
        "$gsl_log_i" \
        "DB" \
        "Post" \
        "Line:NEW - $gsl_post - Hash: $gsl_post_hash" \
        "$gsl_file_db_posts"
    fi
    ;;
esac
}