#! /bin/sh
# usage: dic WORD [LANG]
# where LANG may be one of en, fr, es, it, ch, ru, pt, pl
# multiple WORDs may be seperated by + like this: multiple+words
set -euf

main() {

  case $# in
    1|2) :;; # ok
    *) usage; exit 23;;
  esac

  # all three are used by GET
  search="$1"
  langlang="${2-en}de"
  lang="de"

  GET | simplify | tac
}

GET() {
  curl -sS -b 'LEOABTEST=T; browser=webkit%3B5%3Bajax' \
    "https://dict.leo.org/dictQuery/m-vocab/$langlang/query.xml?tolerMode=nof&lp=$langlang&lang=$lang&rmWords=off&rmSearch=on&search=$search&searchLoc=0&resultOrder=basic&multiwordShowSingle=on"
}

simplify() {
  sed '
    s|<repr>|\nREPR: |g
    s|</repr>|\n|g
  ' | grep ^REPR |
  sed '
    s/^REPR: //
    1~2{s/$/
/}
    2~2{s/$//}
  ' |
  tr -d \\n |
  sed '
    s/
/ - /g
    s//\n/g

    #q

    s/&#8660;/⇔/g
    s/&#160;/ /g; # &nbsp;
    s/  */ /g

    # <!-- undefined_translation: en:pl_ext -->
    s/ *<!--[^>]*-->//g

    s|<i> *|/|g
    s| *</i>|/|g

    s:<sup>1</sup>:¹:g; s:<sup>2</sup>:²:g; s:<sup>3</sup>:³:g;
    s:<sup>:^(:g
    s:</sup>:):g

    s:<sub>0</sub>:₀:g;
    s:<sub>1</sub>:₁:g; s:<sub>2</sub>:₂:g; s:<sub>3</sub>:₃:g;
    s:<sub>4</sub>:₄:g; s:<sub>5</sub>:₅:g; s:<sub>6</sub>:₆:g;
    s:<sub>7</sub>:₇:g; s:<sub>8</sub>:₈:g; s:<sub>9</sub>:₉:g;
    s:<sub>:_(:g
    s:</sub>:):g

    s:<b> *::g
    s: *</b>::g

    s|<small> *||g
    s| *</small>||g

  '
}

usage() {
  sed -rn '/^# usage:/,/^[^#]/{/^#/{s/# //;p}}' "$0" >&2
}

main "$@"