# Copyright (C) Ivan Kravets <me@ikravets.com>
# See LICENSE for details.

from glob import glob
from os import listdir, walk
from os.path import basename, isdir, join

import bottle

from platformio import util


class ProjectGenerator(object):

    def __init__(self, project_dir, ide):
        self.project_dir = project_dir
        self.ide = ide
        self._tplvars = {}

        self._gather_tplvars()

    @staticmethod
    def get_supported_ides():
        tpls_dir = join(util.get_source_dir(), "ide", "tpls")
        return [d for d in listdir(tpls_dir)
                if isdir(join(tpls_dir, d))]

    @staticmethod
    def get_project_env():
        data = {}
        config = util.get_project_config()
        for section in config.sections():
            if not section.startswith("env:"):
                continue
            data['env_name'] = section[4:]
            for k, v in config.items(section):
                data[k] = v
        return data

    def get_project_name(self):
        return basename(self.project_dir)

    @staticmethod
    def get_includes():
        return []

    @staticmethod
    def get_srcfiles():
        result = []
        for root, _, files in walk(util.get_projectsrc_dir()):
            for f in files:
                result.append(join(root, f))
        return result

    @staticmethod
    def get_defines():
        return []

    def get_tpls(self):
        tpls_dir = join(util.get_source_dir(), "ide", "tpls", self.ide)
        return glob(join(tpls_dir, ".*.tpl")) + glob(join(tpls_dir, "*.tpl"))

    def generate(self):
        for tpl_path in self.get_tpls():
            file_name = basename(tpl_path)[:-4]
            with open(join(self.project_dir, file_name), "w") as f:
                f.write(self._render_tpl(tpl_path).encode("utf8"))

    def _render_tpl(self, tpl_path):
        content = ""
        with open(tpl_path) as f:
            content = f.read()
        return bottle.template(content, **self._tplvars)

    def _gather_tplvars(self):
        self._tplvars.update(self.get_project_env())

        self._tplvars.update({
            "project_name": self.get_project_name(),
            "includes": self.get_includes(),
            "srcfiles": self.get_srcfiles(),
            "defines": self.get_defines(),
            "project_dir": self.project_dir
        })