import docopt;

let ARGS = docopt """

NWCCC - Neverwinter Custom Content Compiler

Usage:

nwn_ccc [options] <nwcfile>...

nwn_ccc [options] -f <nwcfile-list>

nwn_ccc [options] -r <directory>

nwn_ccc [options] -u | --update-cache

nwn_ccc -h | --help

Options:

-a, --append=<tophak> Run in append mode, modifying 2DAs in <tophak>; can either be a hak file or a directory

-d, --destination=<dest> Download all asset files to <dest>; can either be a hak file or a directory [default: ./]

-t, --tlk=<tlkfile> Add TLK entries to <tlkfile> when running in append mode

-r, --recursive=<dir> Recursively process all NWC files in <dir>

-n, --nwc=<nwchak> Store a copy of processed NWC files in <nwchak>; can either be a hak file or a directory

-c, --credits=<file> Write credit fragments to <file> [default: credits.txt]

-f, --filelist=<filelist> Process all NWC files in <filelist>

-u, --update-cache Update local manifest cache

-l, --local-cache=<dir> Also search <dir> for local files before downloading

--parallel=<N> Parallel downloads [default: 20]

-v, --verbose Verbose prints as files are being processed

-q, --quiet Suppresses all non-error prints

-h, --help Print this help message and exit

--noenv Ignore environment variables for config options (except NWN_HOME)

--nwccc-home=<homedir> Override NWCCC home directory (default $NWCCC_HOME, then $NWN_HOME/nwccc)

--userdirectory=<userdir> Override NWN user directory (default $NWN_HOME, then autodetect)

--resolve=<policy> Conflict resolve policy [default: fail]

Valid policies:

ask: Prompt user for answer every time

new: Overwrite older files with newer

old: Keep older files, discard newer

big: Overwrite smaller files with larger

small: Overwrite larger files with smaller

fail: Report error and abort

"""

import std/[os, logging, strutils, asyncdispatch]

import libnwccc

var cfg: NwcccConfig

cfg.parallelDownloads = ($ARGS["--parallel"]).parseInt

cfg.loglevel = if ARGS["--verbose"]: lvlDebug elif ARGS["--quiet"]: lvlError else: lvlNotice

cfg.nwmaster = "http://api.nwn.beamdog.net/v1/servers"

cfg.userAgent = "nwccc"

# Register directories which will be scanned for files to copy locally

cfg.localDirs.add($ARGS["--destination"])

if ARGS["--local-cache"]:

cfg.localDirs.add($ARGS["--local-cache"])

if ARGS["--userdirectory"]:

cfg.nwnHome = $ARGS["--userdirectory"];

if ARGS["--nwccc-home"]:

cfg.nwcccHome = $ARGS["--nwccc-home"];

elif existsEnv("NWCCC_HOME") and not ARGS["--noenv"]:

cfg.nwcccHome = getEnv("NWCCC_HOME")

nwcccInit(cfg)

if ARGS["--update-cache"]:

waitFor nwcccUpdateCache()

# TODOs

if ARGS["--append"]: warn "append mode not yet implemented"

if ARGS["--tlk"]: warn "writing to TLK not yet implemented"

if ARGS["--resolve"]: warn "auto resolve not yet implemented"

proc processNwc(nwcfile: string) =

waitFor nwcccProcessNwcFile(nwcfile, $ARGS["--destination"])

if ARGS["--nwc"]:

nwcccWriteFile(nwcfile.extractFilename(), readFile(nwcfile), $ARGS["--nwc"])

if ARGS["--filelist"]:

for nwcfile in lines($ARGS["--filelist"]):

processNwc(nwcfile)

elif ARGS["--recursive"]:

for nwcfile in walkDirRec($ARGS["--recursive"]):

if nwcfile.toLowerAscii.endsWith(".nwc"):

processNwc(nwcfile)

else:

for nwcfile in ARGS["<nwcfile>"]:

processNwc(nwcfile)

if ARGS["--credits"]:

nwcccWriteCredits($ARGS["--credits"])