#!/usr/bin/env sh
# remote file access (http file-sharing shenanigans)
# YES_ZSH
# YES_BASH
# YES_DASH
# YES_ASH

ea() { ### @- **TODO:** document.
    local cmd="${1:?missing subcommand}"; shift
    case "$cmd" in
    # FIXME: at the very least, escape spaces to %20!
    head)
        local trg="$EA_DOMAIN/$EA_DIR/${1:?missing target}"
        curl -s -I "$trg"
        return;;

    get)
        local trg="$EA_DOMAIN/$EA_DIR/${1:?missing target}"
        curl -R "$trg" -o "${2:-$1}"
        return;;

    put)
        local src="${1:?missing source}"
        local dst="$EA_DOMAIN/$EA_AUTH/"
        curl -g -n -T "$src" "$dst"
        return;;

    puts)
        local src="${1:?missing source}"
        local dst="$EA_DOMAIN/$EA_AUTH/"
        minisign -QSm "$src" || return
        curl -g -n -T "$src" "$dst" || return
        curl -g -n -T "$src.minisig" "$dst" || return
        rm "$src.minisig"
        return;;

    move)
        local src="$EA_DOMAIN/$EA_AUTH/${1:?missing source}"
        local dst="$EA_DOMAIN/$EA_DIR/${2:?missing destination}"
        curl -n -X MOVE -H "Destination: $dst" "$src"
        return;;

    copy)
        local src="$EA_DOMAIN/$EA_AUTH/${1:?missing source}"
        local dst="$EA_DOMAIN/$EA_DIR/${2:?missing destination}"
        curl -n -X COPY -H "Destination: $dst" "$src"
        return;;

    delete)
        local trg="$EA_DOMAIN/$EA_AUTH/${1:?missing target}"
        curl -f -n -X DELETE "$trg"
        return;;

    *)
        printf 'unknown subcommand: %s\n' "$cmd" >&2
        return 2;;
    esac
}

[ -n "${preload+-}" ] || ea "$@"