#!/bin/sh
#
# Get the weather on the terminal. You can pass an alternative location as a parameter,
# and/or use the 'cp' option to copy the forecast as plaintext to the clipboard.

weatherreport="${XDG_CACHE_HOME:-${HOME}/.cache}/weatherreport"

formats() {
  [ "$MANPAGER" = "less -s" ] && pager=true || pager=false
  [ "$pager" = "false" ] && {
    export MANPAGER='less -s'
    export LESS="R"
    export LESS_TERMCAP_mb="$(printf '%b' '')"
    export LESS_TERMCAP_md="$(printf '%b' '')"
    export LESS_TERMCAP_me="$(printf '%b' '')"
    export LESS_TERMCAP_so="$(printf '%b' '')"
    export LESS_TERMCAP_se="$(printf '%b' '')"
    export LESS_TERMCAP_us="$(printf '%b' '')"
    export LESS_TERMCAP_ue="$(printf '%b' '')"
    export LESSOPEN="| /usr/bin/highlight -O ansi %s 2>/dev/null"
  }
  setsid -f "$TERMINAL" less -S "$1" >/dev/null 2>&1
  [ "$pager" = "false" ] && {
    export MANPAGER="sh -c 'col -bx | bat -l man -p'"
    export MANROFFOPT="-c"
  }
}

if [ "$1" = 'cp' ]; then
  # shellcheck disable=SC2015
  [ -z "$2" ] && sed 's/\x1b\[[^m]*m//g' "$weatherreport" | xclip -selection clipboard &&
    notify-send "Weather forecast for '${LOCATION:-$(head -n 1 "$weatherreport" | cut -d' ' -f3-)}' copied to clipboard." ||
    { data="$(curl -sfm 5 "${WTTRURL:-wttr.in}/$2?T")" &&
      notify-send "🌞Weather forecast for '$2' copied to clipboard." &&
      echo "$data" | xclip -selection clipboard ||
      notify-send '🥶Failed to get weather forecast!' 'Check your internet connection and the supplied location.'; }
else
  [ -n "$2" ] &&
    notify-send "⛔Invalid option '$1'! The only valid option is 'cp'." &&
    exit 1

  # shellcheck disable=SC2015
  [ -z "$1" ] && formats "$weatherreport" ||
    data="$(curl -sfm 5 "${WTTRURL:-wttr.in}/$1")" && echo "$data" | formats - ||
    notify-send '❗Failed to get weather forecast!' 'Check your internet connection and the supplied location.'
fi