#!/bin/bash

# Setup environment for the backups website
function hydra_backup_environment_local_website {
  NODE="$1"
  SITE="$2"
  BACKUPDIR="/var/sites/backups/site/$SITE/$NODE"

  if [ -z "$SITE" ] || [ -z "$NODE" ]; then
    hydra_action_usage
    exit 1
  fi

  if [ ! -z "$DATE" ]; then
    RESTOREDIR="$BACKUPDIR/$DATE"
  else
    RESTOREDIR="$BACKUPDIR/`date +%Y%m%d`"
  fi

  DB_DUMP_BASE="$RESTOREDIR"
  mkdir -p $RESTOREDIR  
}

# Setup environment for backup restored from localhost
function hydra_backup_environment_local {
  BACKUPDIR="/var/backups/duplicity"

  if [ ! -z "$DATE" ]; then
    RESTOREDIR="/var/backups/restore/$DATE"
  else
    RESTOREDIR="/var/backups/restore/`date +%Y%m%d`"
  fi

  DB_DUMP_BASE="$RESTOREDIR/var/backups/mysql/sqldump/"
  mkdir -p $RESTOREDIR    
}

# Setup environment for backup restored from remote source
function hydra_backup_environment_remote {
  NODE="$1"
  METHOD="$2"
  BACKUP_ROOT="/var/backups/remote"
  DOMAIN="`facter domain`"
  BACKUPDIR="$BACKUP_ROOT/$NODE.$DOMAIN"

  if [ ! -z "$DATE" ]; then
    RESTOREDIR="$BACKUPDIR/restore/$DATE"
  else
    RESTOREDIR="$BACKUPDIR/restore/`date +%Y%m%d`"
  fi
  
  if [ -z "$NODE" ]; then
    hydra_action_usage
    exit 1
  fi
  
  if [ ! -d "$BACKUPDIR" ]; then
    echo "No backup found at $BACKUPDIR"
    exit 1
  fi
  
  if [ -z "$METHOD" ]; then
    if [ -d "$BACKUPDIR/rsync" ]; then
      echo "Assuming rsync backup method"
      BACKUPDIR="$BACKUPDIR/rsync/var/backups/duplicity/daily.1"
    elif [ -d "$BACKUPDIR/rdiff" ]; then
      echo "Assuming rdiff backup method"
      BACKUPDIR="$BACKUPDIR/rdiff/var/backups/duplicity"
    else
      echo "Missing backup action"
      exit 1 
    fi
  else
    if [ -d "$BACKUPDIR/$METHOD" ]; then
      BACKUPDIR="$BACKUPDIR/$METHOD"
    else
      echo "Backup folder for $METHOD not found at $BACKUPDIR"
      exit 1 
    fi
  fi
  
  if [ -d "$RESTOREDIR" ] && [ "$METHOD" != "restore" ]; then
    echo "Restoration folder $RESTOREDIR already exists"
    exit 1
  fi
  
  DB_DUMP_BASE="$RESTOREDIR/var/backups/mysql/sqldump/"
  mkdir -p $RESTOREDIR
}