#!/bin/sh

# Problem? => [email protected]

unrestrictli() {
    local f=$tmp/dl.response.htm
    local c=$tmp/unrestrict.cookie

    local try=0 finalurl filename invalid responsedata

    # Check if no cookies or expired cookies
    if ! unrestrictli_account_info; then
        # Sign in if account is set
        if [ -n "$ACCOUNT_USER" ]; then
            unrestrictli_login "$ACCOUNT_USER" "$ACCOUNT_PASS"
        else
            log "Unrestrict.li VIP account is required."
            errmsg "Unrestrict.li VIP account is required."
            return 1
        fi
    fi

    while [ $try -lt $retries ]; do
        try=$(($try+1))

        GET "http://unrestrict.li/unrestrict.php" $f "--cookie $c -d jdownloader=1&domain=long&link=$link" "UNRESTRICT"

        finalurl=$(cat "$f" | sed 's/{"\([^"]\+\)":.*/\1/' | sed 's/\\//g')
        invalid=$(cat "$f" | sed 's/.*"invalid":"\([^"]\+\)".*/\1/')
        filename=$(cat "$f" | parse_json_string name)
        responsedata=$(<$f)

        if [ "$invalid" != "$responsedata" ]; then
            log "Failed to unrestrict link. (Errormessage: $invalid)"
            errmsg "Failed to unrestrict link. (Errormessage: $invalid)"
            waiting ${slot_waittime:-60}
            continue
        fi
        [ -z "$filename" ] && filename=${finalurl##*/}

        log "Starting download of $finalurl."
        if download "$finalurl" "$filename" "--retry 3 -C -"; then
            return 0
        fi
    done
    log "Download failed."
    errmsg "Download failed."
    return 1
}

# Check account info
unrestrictli_account_info() {
    local traffic expires timestamp
    GET "http://unrestrict.li/api/jdownloader/user.php?format=json" $f "--cookie $c" "TRAFFIC"
    traffic=$(cat "$f" | parse_json_number traffic)
    expires=$(cat "$f" | parse_json_number expires)
    timestamp=$(date +%s)
    if [ $expires -lt $timestamp ]; then
        log "No VIP!"
        errmsg "No VIP!"
        return 1
    fi
    expires=$(date -d @$expires +%c)
    log "VIP expires: $expires."
    if [ $traffic -le 0 ]; then
        log "No traffic!"
        errmsg "No traffic!"
        return 1
    fi
    log "$traffic bytes left."
    return 0
}

# Check hosts
unrestrictli_check() {
    local result
    GET "http://unrestrict.li/api/jdownloader/hosts.php?format=json" $f "--cookie $c" "HOSTERLIST"
    result=$(cat "$f" | parse_json_array result)
    echo "$result" | grep -q "$hosterdomain" || return 1
    return 0
}

# Sign in
unrestrictli_login() {
    local username=$1
    local password=$2
    local cookiefile=$c
    local name

    GET "http://unrestrict.li/sign_in" $f "--cookie-jar $cookiefile -d return=home&username=$username&password=$password&signin=Log%20in&remember_me=remember" "LOGIN"
    name=$(<$cookiefile parse_cookie 'unrestrict_user')
    if [ -n "$name" ]; then
        log "Signed in as $user."
        return 0
    fi
    log "Failed to sign in. Check username and/or password. Complete captcha in browser before trying again."
    errmsg "Failed to sign in. Check username and/or password. Complete captcha in browser before trying again."
    return 1
    # TODO: Captcha (Solvemedia) processing
}