#!/usr/bin/env bash

hostname=$(hostname)

if test -e source ~/.config/fish/variables-$hostname.fish
    source ~/.config/fish/variables-$hostname.fish
else
    echo "Failed to find back credentials in fish variables file"
    exit 1
end

set current_date $(date +%Y-%m-%d)

set log_dir "$XDG_STATE_HOME/logs/backups"
set log_file "$log_dir/backup_$current_date.log"

set last $(restic snapshots | tail -3 | head -1 | awk '{print $2}')
if test $status != 0
        echo "can't find last snapshot" | tee -a $log_file
        notify-send -a "backup" "Failed to get last snapshot for backups" -u critical 
        exit $status
end

function exit_handler
    # Restore std...
    # exec 2>&4 1>&3
end

# Setup logging
mkdir -p $log_dir || true

trap exit_handler 0 1 2 3

printf "Current date: %s. Last snapshot: %s\n" $current_date $last | tee -a $log_file

if test "$last" != "$current_date"
    set not_id $(notify-send -a "backup" "Daily backup $current_date started." -p)
    restic backup -v "$HOME" --exclude-file "$XDG_CONFIG_HOME/restic/ignore" | tee -a $log_file
    if test $status != 0
        echo "Backup failed." | tee -a $log_file
        notify-send -a "backup" "Backup $current_date failed!" -u critical -r $not_id
        exit $status
    end

    printf "Backup success\n." | tee -a $log_file

    notify-send -a "backup" "Daily backup $current_date succeeded." -r $not_id
else
    printf "No backup needed" | tee -a $log_file
end