#!/bin/sh

HISTFILE="${HOME}/.browser_history"

test -f ${HOME}/.bin/_config \
    && . ${HOME}/.bin/_config \
    || DMENU_CMD=dmenu

test -f "${HISTFILE}" \
    || touch "${HISTFILE}"

PICKLIST="paste_from_clipboard
pick_from_history
-----------------
$(cat "${HISTFILE}" \
    | cut -b 23- \
    | sort -u \
    | egrep -v ' |^[^a-zA-Z0-9]' \
    | fgrep '.')"

# show filtered history file
# EXPECTS:  $PICKLIST $HISTFILE $DMENU_CMD
# PROVIDES: $INPUT
read_input() {
    local S=$(printf '%s\n' "${PICKLIST}" \
        | ${DMENU_CMD} -p "Bookmarks" -l 20)

    case "${S}" in
        paste_from_clipboard)
            S=$(xclip -o \
                | col -b \
                | head -n 1) ;;
        pick_from_history)
            S=$(sort -r "${HISTFILE}" \
                | ${DMENU_CMD} -p "History:" -l 20 \
                | cut -b23-) ;;
    esac

    [ -z "${S}" ] && exit 0
    INPUT="${S}"
}

# Decide how to open the thing
# EXPECTS:  $INPUT $DMENU_CMD
# PROVIDES: $URI
choose_wrapper() {

local SE="OPEN URL
Amazon
DuckDuckGo Web Search
DuckDuckGo Image Search
Github
Marc Info MessageID
Marc Info OpenBSD Misc List
Marc Info OpenBSD Ports CVS
Marc Info OpenBSD Ports List
Marc Info OpenBSD Tech List
PDF Viewer
SearX Web Search
SearX Image Search
Wikipedia DE
Wikipedia EN
InternetMovieDataBase (IMDB)
OpenStreetMap (OSM)
Grep.app
Google Maps
Youtube"

    local C="$(printf '%s' "${INPUT}" \
                    | col -b \
                    | head -n 1)"
    case "${C}" in
        http*) DEFAULT="OPEN (default)"; ;;
        gopher*) DEFAULT="OPEN (default)"; ;;
        www.*) DEFAULT="OPEN (default)"; ;;
        \<*@*\>) DEFAULT="Marc Info Message ID (default)"; ;;
        *.com|*.de|*.net|*.org) DEFAULT="OPEN (default)"; ;;
        *.at|*.ch|*.social) DEFAULT="OPEN (default)"; ;;
        *.io|*.sh|*.pw|*.party) DEFAULT="OPEN (default)"; ;;
        *.coffee|*.me|*.cloud) DEFAULT="OPEN (default)"; ;;
        *.[a-zA-Z]*/*) DEFAULT="OPEN (default)"; ;;
        *) DEFAULT="DuckDuckGo Web Search (default)"; ;;
    esac

    local S="$(printf "%s\n%s" "${DEFAULT}" "${SE}" \
                    | ${DMENU_CMD} -p "Search Where?" -l 20)"
    case "${S}" in
        OPEN*)      URI="${C}"; ;;
        Amazon*)    URI="https://www.amazon.de/s?k=${C}"; ;;
        Grep*)      URI="https://grep.app/search?q=${C}"; ;;
        Github)     URI="https://github.com/search?q=${C}"; ;;
        D*Web*)     URI="https://html.duckduckgo.com/html?q=${C}"; ;;
        D*Ima*)     URI="https://duckduckgo.com/?q=${C}&iax=images&ia=images"; ;;
        S*Web*)     URI="https://searx.bar/search?q=${C}&category_general=on"; ;;
        S*Ima*)     URI="https://searx.bar/search?q=${C}&category_images=on"; ;;
        W*DE*)      URI="https://de.m.wikipedia.org/wiki/Spezial:Suche/${C}"; ;;
        W*EN*)      URI="https://en.m.wikipedia.org/wiki/Spezial:Search/${C}"; ;;
        *IMDB*)     URI="https://www.imdb.com/find?q=${C}"; ;;
        O*S*M*)     URI="https://www.openstreetmap.org/search?query=${C}"; ;;
        G*Maps)     URI="https://www.google.com/maps/place/${C}"; ;;
        You*be)     URI="https://m.youtube.com/results?sp=mAEA&search_query=${C}" ;;
        M*I*ID*)    URI="https://marc.info/?i=$(printf '%s' "${C}" | tr -d '<>')"; ;;
        M*I*P*List) URI="https://marc.info/?l=openbsd-ports&s=${C}&q=b"; ;;
        M*I*T*List) URI="https://marc.info/?l=openbsd-tech&s=${C}&q=b"; ;;
        M*I*M*List) URI="https://marc.info/?l=openbsd-misc&s=${C}&q=b"; ;;
        M*I*P*CVS)  URI="https://marc.info/?l=openbsd-ports-cvs&s=${C}&q=b"; ;;
        *) exit 0 ;;
    esac
}

# Which browser shall we use?
# EXPECTS:  $URI $DMENU_CMD
# PROVIDES: $BROWSER
choose_browser() {

    case "${URI}" in
        *.pdf|*.cb|*.ps)  DEFAULT="Zathura (default)"; ;;
        *github.com*)     DEFAULT="Firefox (default)"; ;;
        *amazon.de*)      DEFAULT="Firefox (default)"; ;;
        *duckduckgo.com/*images*) DEFAULT="Firefox (default)"; ;;
        *codevoid.de*)    DEFAULT="Luakit (default)"; ;;
        *google.*)        DEFAULT="Chrome (default)"; ;;
        *chat.uugrn.org*) DEFAULT="Chrome (default)"; ;;
        *.uugrn.org*)     DEFAULT="Firefox (default)"; ;;
        *[./]amazon.*)    DEFAULT="Firefox (default)"; ;;
        *) DEFAULT="Luakit (default)"; ;;
    esac

    local S="${DEFAULT}\nLuakit\nFirefox\nChrome\nQutebrowser\nNetsurf\nTor-Browser"
    case $(echo "${S}" | ${DMENU_CMD} -p "Browser") in
        Netsurf*) BROWSER=netsurf-gtk3 ;;
        Vimb*)    BROWSER=vimb ;;
        Quteb*r*) BROWSER=qutebrowser ;;
        Surf*)    BROWSER=surf ;;
        Otter*r*) BROWSER=otter-browser ;;
        Luakit*)  BROWSER="luakit -Un" ;;
        Chrome*)  BROWSER=chrome ;;
        Firefox*) BROWSER=firefox ;;
        Tor-B*r*) BROWSER=tor-browser ;;
        Zathura*) BROWSER=zathura ;;
        *) exit 0;;
    esac
}

save_history() {
    printf '%s %s\n' "$(date +"%Y-%m-%d %H:%M:%S |")" "${INPUT}" \
        >> "${HISTFILE}"
}

# main program starts here.
read_input
choose_wrapper
choose_browser
save_history
exec $BROWSER "$(printf '%s' "${URI}" | sed 's/ /%20/g')"