from os.path import dirname, abspath, join
import os
import subprocess

top_dir = "."
out_dir = "build"

class Dummy: pass


def configure(ctx):
    ctx.env.PATH = os.environ['PATH'].split(os.pathsep)
    ctx.env.PATH.append(join(ctx.cwd, "node_modules", "coffee-script", "bin"))
    ctx.find_program("coffee", var="COFFEE", path_list=ctx.env.PATH)
    ctx.find_program("cp", var="COPY", path_list=ctx.env.PATH)
    ctx.find_program("git", var="GIT", path_list=ctx.env.PATH)
    ctx.env.COFFEE_ARGS = "-co"
    ctx.env.GIT_ARGS = "submodule update --init"
    #print "update git submodules"
    #subprocess.check_call(["git", "submodule", "update", "--init"])


def build(ctx):
    env = Dummy()
    env.variant = lambda: ""
#    print ctx.path.find_node("external/backbone-localstorage/backbone.localStorage.js")
#    print ctx.path.
#    ctx(name = "git submodule",
#        rule = "${GIT} ${GIT_ARGS}",
#        always = True,
#        cwd = ctx.path.abspath())

    for file in ctx.path.find_dir("src").ant_glob("**/*.coffee", flat=False):
        tgtpath = file.change_ext(".js").bldpath(env)[5:]
        ctx.path.exclusive_build_node(tgtpath)
        ctx(name   = "coffee",
            rule   = "${COFFEE} ${COFFEE_ARGS} %s/%s ${SRC}" % (
                     ctx.env.variant(), dirname(tgtpath)),
            source = file.srcpath()[3:],
            target = tgtpath)

    for file in ctx.path.find_dir("src").ant_glob("**/*.js", flat=False):
        tgtpath = file.bldpath(env)[6:]
        ctx.path.exclusive_build_node(tgtpath)
        ctx(name   = "copy",
            rule   = "${COPY} ${SRC} ${TGT}",
            source = file.srcpath()[3:],
            target = tgtpath)

    ctx(name   = "copy localstorage",
        rule   = "${COPY} ${SRC} ${TGT}",
        source = "external/backbone-localstorage/backbone.localStorage.js",
        target = "public/Backbone-localstorage.js")