# shellcheck shell=bash
# ==========================================================================
#         ____            _                     _____           _
#        / ___| _   _ ___| |_ ___ _ __ ___     |_   _|__   ___ | |___
#        \___ \| | | / __| __/ _ \ '_ ` _ \ _____| |/ _ \ / _ \| / __|
#         ___) | |_| \__ \ ||  __/ | | | | |_____| | (_) | (_) | \__ \
#        |____/ \__, |___/\__\___|_| |_| |_|     |_|\___/ \___/|_|___/
#               |___/
#                             --- System-Tools ---
#                  https://www.nntb.no/~dreibh/system-tools/
# ==========================================================================
#
# Time to Unix Timestamp Conversion
# Copyright (C) 2026 by Thomas Dreibholz
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Contact: thomas.dreibholz@gmail.com


# ###### Bash completion for time2unixts ####################################
_time2unixts()
{
   # Based on: https://www.benningtons.net/index.php/bash-completion/
   local cur prev words cword
   if type -t _comp_initialize >/dev/null; then
      _comp_initialize || return
   elif type -t _init_completion >/dev/null; then
      _init_completion || return
   else
      # Manual initialization for older bash completion versions:
      COMPREPLY=()
      cur="${COMP_WORDS[COMP_CWORD]}"
      # shellcheck disable=SC2034
      prev="${COMP_WORDS[COMP_CWORD-1]}"
      # shellcheck disable=SC2034,SC2124
      words="${COMP_WORDS[@]}"
      # shellcheck disable=SC2034
      cword="${COMP_CWORD}"
   fi

   # ====== Suggest dates as first parameter ================================
   if [[ "${cur}" != -* ]] ; then
      local dateFormat="%Y-%m-%d %H:00:00.000000000"
      local dateToday
      local dateTomorrow
      dateToday="$(date +"${dateFormat}")"
      if date -d "tomorrow" +"${dateFormat}" >/dev/null 2>&1; then
         dateTomorrow="$(date -d "tomorrow" +"${dateFormat}")"   # Linux
      else
         dateTomorrow="$(date -v+1d +"${dateFormat}")"           # FreeBSD
      fi
      local dateOptions=( "${dateToday}" "${dateTomorrow}" )

      COMPREPLY=()
      local search="${cur//\\/}"   # The strings contain spaces!
      for item in "${dateOptions[@]}" ; do
         if [[ "${item}" == "${search}"* ]] ; then
            COMPREPLY+=( "${item// /\\ }" )   # The strings contain spaces!
         fi
      done
      return
   fi

   # ====== All options =====================================================
   local opts="
-F
--float
-I
--integer-decimal
-X
--integer-hexadecimal
-0
--integer-0x-hexadecimal
-H
--human-readable
-s
--seconds
-m
--milliseconds
-u
--microseconds
-n
--nanoseconds
-h
--help
-v
--version
--
"
   mapfile -t COMPREPLY < <(compgen -W "${opts}" -- "${cur}" )
   return 0
}

complete -F _time2unixts time2unixts
