#!/usr/bin/env python3

import os
import sys

"""
generates a "tl.js" which can be used to prototype a new translation
without having to run from source, or tamper with the files that are
extracted from the sfx

to generate a tl.js for the language you are translating to,
run the following command:  python tl.py fra Français
("fra" being the three-letter language code of your language, and
 "Français" the native name of the language)

then copy tl.js into the webroot and run copyparty with the following:
  on Linux:    --html-head='<script src="/tl.js"></script>'
  on Windows:  "--html-head=<script src='/tl.js'></script>"

or in a copyparty config file:
[global]
  html-head: <script src="/tl.js"></script>

after editing tl.js, reload your webbrowser by pressing ctrl-shift-r
"""


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#######################################################################


def generate_javascript(lang3, native_name, tl_browser):
    note = "// NOTE: please use tabs for indenting, not spaces :-)"
    if lang3 == "eng":
        note += """\n
// NOTE: since you are using the tl.js straight from the repo, you'll
//   need to find/replace all "eng" with your own three-letter name"""

    return f""""use strict";

{note}

// the three-letter name of the language you're translating to
var my_lang = "{lang3}";

// and because we don't know these yet...
var SR='', wah='';

// this function is automatically called when the page is loaded:
function langmod() {{

	// which page is the javascript currently running on?
	// look for some well-known elements to figure it out:

	if (QS("h1#cc") && QS("a#k")) {{
		// we are running in the control-panel
		Ls[my_lang] = tl_cpanel[my_lang];
	}}
	else if (ebi("op_cfg")) {{
		// we are running in the filebrowser
		Ls[my_lang] = tl_browser[my_lang];

		// inform the settings tab that a new lang is available
		LANGS.push(my_lang);
	}}
}}


////////////////////////////////////////////////////////////////////////
// below this point is where the actual translation happens;
// here is the pairs of "text-identifier": "text-to-translate"


////////////////////////////////////////////////////////////////////////
// translation of splash.js (the control-panel);
// you do not need to translate the TLNotes, those are just for you :-)

var tl_cpanel = {{
	"{lang3}": {{
		"a1": "refresh",
		"b1": "howdy stranger &nbsp; <small>(you're not logged in)</small>",
		"c1": "logout",
		"d1": "dump stack",  // TLNote: "d2" is the tooltip for this button
		"d2": "shows the state of all active threads",
		"e1": "reload cfg",
		"e2": "reload config files (accounts/volumes/volflags),$Nand rescan all e2ds volumes$N$Nnote: any changes to global settings$Nrequire a full restart to take effect",
		"f1": "you can browse:",
		"g1": "you can upload to:",
		"cc1": "other stuff:",
		"h1": "disable k304",  // TLNote: "j1" explains what k304 is
		"i1": "enable k304",
		"j1": "enabling k304 will disconnect your client on every HTTP 304, which can prevent some buggy proxies from getting stuck (suddenly not loading pages), <em>but</em> it will also make things slower in general",
		"k1": "reset client settings",
		"l1": "login for more:",
		"m1": "welcome back,",  // TLNote: "welcome back, USERNAME"
		"n1": "404 not found &nbsp;┐( ´ -`)┌",
		"o1": 'or maybe you don\\'t have access -- try a password or <a href="' + SR + '/?h">go home</a>',
		"p1": "403 forbiddena &nbsp;~┻━┻",
		"q1": 'use a password or <a href="' + SR + '/?h">go home</a>',
		"r1": "go home",
		".s1": "rescan",
		"t1": "action",  // TLNote: this is the header above the "rescan" buttons
		"u2": "time since the last server write$N( upload / rename / ... )$N$N17d = 17 days$N1h23 = 1 hour 23 minutes$N4m56 = 4 minutes 56 seconds",
		"v1": "connect",
		"v2": "use this server as a local HDD",
		"w1": "switch to https",
		"x1": "change password",
		"y1": "edit shares",  // TLNote: shows the list of folders that the user has decided to share
		"z1": "unlock this share:",  // TLNote: the password prompt to see a hidden share
		"ta1": "fill in your new password first",
		"ta2": "repeat to confirm new password:",
		"ta3": "found a typo; please try again",
		"aa1": "incoming files:",
		"ab1": "disable no304",
		"ac1": "enable no304",
		"ad1": "enabling no304 will disable all caching; try this if k304 wasn't enough. This will waste a huge amount of network traffic!",
	}},
}};


////////////////////////////////////////////////////////////////////////
// translation of browser.js (the filebrowser):

var tl_browser = {{
	"{lang3}": {{
		"tt": "{native_name}",

		{tl_browser}
}};

"""


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def die(*a):
    print(*a)
    sys.exit(1)


def main():
    webdir = "../copyparty/web/splash.js"

    while webdir and not os.path.exists(webdir):
        webdir = webdir.split("/", 1)[1]

    if not webdir:
        t = "could not find the copyparty/web/*.js files!\nplease cd into the copyparty repo before running this script"
        die(t)

    webdir = webdir.rsplit("/", 1)[0] if "/" in webdir else "."

    with open(os.path.join(webdir, "browser.js"), "rb") as f:
        browserjs = f.read().decode("utf-8")

    _, browserjs = browserjs.split('\n\t\t"tt": "English",\n', 1)
    browserjs, _ = browserjs.split('\n\t"nor": {', 1)

    try:
        lang3 = sys.argv[1]
    except:
        t = "you need to provide one more argument: the three-letter language code for the language you are translating to, for example: ger"
        die(t)

    try:
        native_name = sys.argv[2]
    except:
        t = "you need to provide one more argument: the native name of the language you are translating to, for example: Deutsch"
        die(t)

    ret = generate_javascript(lang3, native_name, browserjs)

    outpath = os.path.abspath("tl.js")
    if os.path.exists(outpath):
        t = "the output file already exists! if you really want to overwrite it, then delete the following file and try again:"
        die(t, outpath)

    with open(outpath, "wb") as f:
        f.write(ret.encode("utf-8"))

    print("successfully created", outpath)


if __name__ == "__main__":
    main()