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

#======================================================================
# Sidebar Manager | $1=call | $2=process | $3=POS/Post | $4=Post
#======================================================================
gsl__sidebar() {
case "$2" in
  "")
    ls -1 "$gsl_dir_domain_listings" | sort -r
    exit
    ;;
    
  create|-C)
    ! [[ `ls -1 "$gsl_dir_domain_listings"` ]] \
      && echo "! No post in list: $gsl_dir_domain_listings" \
      && exit
  
    gsl__page_sidebar_create
    ;;
  
  add|-A)
    # $2=process | $3=Position | $4=post
    gsl_listing_process="add"
    ! [[ "$3" ]] \
      && echo "! Set a number <= $gsl_list_max_posts ; see help" \
      && exit
      
    ! [[ `expr "x$3" : "x[0-9]*$"` -gt 0 ]] \
      && gsl__list_bad_arg nbr $3

    ! (( $3 <= $gsl_list_max_posts )) \
      && gsl__list_bad_arg nbr $3
    
    ! [[ "$4" ]] \
      && gsl__list_bad_arg file

    gsl__logs_print \
      "$gsl_log_i" \
      "Starting" \
      "Process" \
      "$1 ; $2 ; position $3 ; $4 from domain $gsl_find_domain" \
      "$gsl_dir_domain_tpl/last-posts-list.html"

    gsl__if_file "$4" post
    gsl_listing_file="$gsl_dir_domain_listings/$4.list"
    gsl_post_old_inlist=`ls -1 "$gsl_dir_domain_listings/" | grep ".list.$3"`

    if [[ `ls -1 "$gsl_listing_file"* 2>/dev/null` ]];then
      # Post exists (maybe with different position)
      gsl__logs_print \
        "$gsl_log_w" \
         "Sidebar" \
         "Post" \
         "$gsl_listing_process $4 ; already in list !" \
         "$gsl_dir_domain_listings/"
      gsl_checker_war=true
    
    elif [[ "$gsl_post_old_inlist" ]];then
      # Another post exists at this position.
      # Remove and create new in roller
      rm -f "$gsl_dir_domain_listings/$gsl_post_old_inlist"
      gsl__logs_print \
        "$gsl_log_w" \
         "Sidebar" \
         "Post" \
         "$gsl_listing_process $4 ; replace $gsl_post_old_inlist !" \
         "$gsl_dir_domain_listings/$gsl_post_old_inlist"
      gsl_checker_war=true
      gsl__page_sidebar $2 $3 $4
    else
      # Not gound in list, create for roller
      gsl__page_sidebar $2 $3 $4
    fi

    gsl__logs_print \
      "$gsl_log_i" \
      "Stopping" \
      "Process" \
      "$1 ; $2 ; position $3 ; $4 from domain $gsl_find_domain" \
      "$gsl_dir_domain_tpl/last-posts-list.html"
    ;;
    
  remove|-R)
    gsl_listing_process="remove"
    ! [[ "$3" ]] \
      && gsl__list_bad_arg file $3

    gsl__if_file "$3" post

    gsl__logs_print \
      "$gsl_log_i" \
      "Starting" \
      "Process" \
      "$1 ; $2 ; $3 from domain $gsl_find_domain" \
      "$gsl_dir_domain_tpl/last-posts-list.html"
    
    gsl_post_rm_list=`ls -1 "$gsl_dir_domain_listings/" | grep "$3.list"`
    rm -f "$gsl_dir_domain_listings/$gsl_post_rm_list" && \
    gsl__logs_print \
      "$gsl_log_w" \
      "Sidebar" \
      "$2" \
      "$3 from domain $gsl_find_domain in list" \
      "$gsl_dir_domain_listings/$gsl_post_rm_list"
    gsl_checker_war=true
    
    gsl__page_sidebar_create
    
    gsl__logs_print \
      "$gsl_log_i" \
      "Stopping" \
      "Process" \
      "$1 ; $2 ; $3 from domain $gsl_find_domain" \
      "$gsl_dir_domain_tpl/last-posts-list.html"
    ;;
  
  *)
    echo "! Bad argument: add|-A/remove|-R"
    exit
    ;;
esac
}

#======================================================================
# Sidebar Return bad argument
#======================================================================
gsl__list_bad_arg() {
  case "$1" in
    nbr)
      echo "! $2 is not a number <= $gsl_list_max_posts ; see help"
      ;;
    file)
      echo "! Set post [FILE]"
      ;;
  esac
  exit
}