#!/bin/bash

# Helper to add a repos quickly and without problem. It create a repos.list in $etc/apt/sources.list.d/. It doesn't update the repos, so it must be used with the ynh_add_dependencies.
# usage : ynh_add_repos nameoftherepos url
# URL IS SOMETHING LIKE : "deb $mirrorurl $prefix(stable or jessie...) $otherprefix(main, non-free, or somting like that)"
ynh_add_repo(){
  local name_repos="$1"
  local url_repos="$2"
  echo "# $name_repos
    ${url_repos}" 
    > "/etc/apt/sources.list.d/$name_repos.list"
}

# Helper to pin a repos easily.
# usage : ynh_add_pin_repo nameoftherepos nbrofthepin origin 
# Origin is the name of the orga which set up this repos ex: Debian 
ynh_add_pin_repo() {
  local name_repos="$1"
  local pin="$2"
  local origin="$3"
  echo "Package: *
       Pin: release o=$origin,a=$name_repos
       Pin-Priority: $pin" \
    > "/etc/apt/preferences.d/$name_repos"
}

# Add in a secure way backports repo.
# usage : ynh_add_secure_backport
ynh_add_secure_backport() {
   local name_repos="debian-backports"
   local origin="Debian"
   local lsb_version="$(ynh_get_debian_release)"
   local url="deb https://ftp.debian.org/debian $lsb_version-backports main"
   local pin="450"
   ynh_add_repos $name_repos $url 
   ynh_add_pin_repo $name_repos $origin $pin
}

# Remove a repos easily in a secure way using the ynh_secure_remove helper
ynh_rm_secure_repos() {
  local name_repos=$1
  ynh_secure_remove "/etc/apt/preferences.d/$name_repos"
  ynh_secure_remove "/etc/apt/sources.list.d/$name_repos.list"
}

# Backup the repo
ynh_backup_repo() {
  local name_repo=$1
  ynh_backup "/etc/apt/preference.d/$name_repo"
  ynh_backup "/etc/apt/sources.list.d/$name_repo.list"
}

ynh_restore_repo() {
    local name_repo=$1
    local custom_arch=$2
    ynh_restore "/etc/apt/preference.d/$name_repo"
    if [[ custom_arch -ne true ]]
        local arch_system=$(lsb_release -c)
        arch_system=$(echo ${arch#Codename:})
        same_arch=$(cat $name_repo | grep $arch)
        archs = [jessie, stretch, buster]
        ynh_restore "/etc/apt/sources.list.d/$name_repo.list"
        for arch in archs
        do
            same_arch=$(cat $name_repo | grep $arch)
            if [[ same_arch -e arch ]]
            then
                echo "Everything is ok"
            else
                sed -i "s@$arch@$arch_system@g" "/etc/apt/sources.list.d/$name_repo.list"
            fi 
        done
    else 
        echo "Attention: vous avez choisi de personnaliser votre header"
        ynh_restore "/etc/apt/sources.list.d/$name_repo.list"
    fi
}

ynh_backup_all_repos() {
    if [[ $(ls /etc/apt/preference.d/) -ne "" ]]
    then
        ynh_backup "/etc/apt/preference.d/*"
    fi
    if [[ $(ls /eyc/apt/sources.list.d/) -ne "" ]] 
    then
        ynh_backup "/etc/apt/sources.list.d/*"
    fi
}