#!/usr/bin/env zsh
# Open URLs based on perl compatible regular expressions. Several commands can
# be specified with ; as separator. If the URL doesn't match anything or the
# commands are not found, use ${default_cmd}.

setopt LOCAL_OPTIONS ERR_RETURN NO_UNSET PIPE_FAIL

zmodload zsh/zutil
local -a o_help=()
zparseopts -D -K -- h=o_help
if [[ ${#o_help} -ne 0 || ! -v 1 ]]; then
    local ret=$(( ${#o_help} ^ 1 ))
    print -u $(( 1 + ${ret} )) "usage: ${0} [-h] <URL> …"
    return ${ret}
fi
local -a urls=(${@})

autoload -U readwwwlog openwwwimg
zmodload zsh/pcre

local default_cmd="firefox"
local mpv="mpv --force-window=yes"

local -A assignments=(
    '\.(mp4|m4v|mkv|avi|webm|flv|xvid|ogv|theora|mov|wmv)(\?.+)?$'  "${mpv};vlc"
    '\.(ogg|flac|opus|m4a|wav|mp3|mid|aac|wma)(\?.+)?$'             "${mpv};vlc"
    '^https://media\.ccc\.de/v/[^/]*$'                                  "${mpv}"
    '^https?://(www\.)?youtu(\.be|be\.com)/'                            "${mpv}"
    '^(gemini|gopher)://'                                             "kristall"
    '\.(log|txt)$'                                                  "readwwwlog"
    '^https?://(www\.)?(dpaste|pastebin|irccloud)\.com/'            "readwwwlog"
    '^https?://bpa\.st/'                                            "readwwwlog"
    '^https?://sprunge\.us/'                                        "readwwwlog"
    '^https?://paste\.debian\.net/'                                 "readwwwlog"
    '\.(webm|png|jpe?g|gif|svg|bmp|xcf)(\?.+)?$'                    "openwwwimg"
    '(^magnet:|\.torrent$)'                            "transmission-remote-gtk"
)

local selected_cmd=${default_cmd}
for regex cmds in ${(kv)assignments}; do
    if [[ ${urls[1]} -pcre-match ${regex} ]]; then
        for cmd in ${(s/;/)cmds}; do
            if type ${cmd%% *} >& -; then
                selected_cmd=${cmd}
                break
            fi
        done
        break
    fi
done

${(@s/ /)selected_cmd} ${urls}