from string import Template

class BaseTemplate(object):
    def __init__(self, template_file):
        self.set_template(template_file)

    def build(self, **kwargs):
        return self.template.substitute(**kwargs)

    def set_template(self, template_file):
        with open(template_file, 'r') as f:
            template_base = f.read()
        self.template = Template(template_base)


class UnsubmittedEmailTemplate(BaseTemplate):
    def __init__(self):
        self.set_template("templates/unsubmitted.html")

    def build(self, week, maconomyurl, helpurl):
        return self.template.substitute(week=week, maconomyurl=maconomyurl, helpurl=helpurl)

class MissingEmailTemplate(BaseTemplate):
    def __init__(self):
        self.set_template("templates/missing.html")

    def build(self, maconomyurl, helpurl):
        return self.template.substitute(maconomyurl=maconomyurl, helpurl=helpurl)

class ManagerEmailTemplate(BaseTemplate):
    def __init__(self):
        self.set_template("templates/manager.html")

    def build(self, employee, week, maconomyurl, **kwargs):
        submitted = '' if 'submitted' in kwargs and kwargs['submitted'] else 'not'
        approved = '' if 'approved' in kwargs and kwargs['approved'] else 'not'
        return self.template.substitute(employee=employee.__unicode__(),week=week,maconomyurl=maconomyurl, submitted=submitted, approved=approved)