from os.path import basename
class HostingAdapter(object):
    def __init__(self, project):
        self.project = project
    def get_commit_url(self, change):
        return '#'
    def get_branch_url(self, change):
        return '#'
    def get_line_url(self, change, line):
        return '#'
class BitbucketAdapter(HostingAdapter):
    def get_commit_url(self, change):
        return '{url}/commits/{node}'.format(**{
            'url': self.project.url,
            'node': change.node
        })
    def get_branch_url(self, change):
        return '{url}/branch/{branch}'.format(**{
            'url': self.project.url,
            'branch': change.branch
        })
    def get_line_url(self, change, line):
        return '{url}/src/{node}/{filename}#{basename}-{line}'.format(**{
            'url': self.project.url,
            'node': change.node,
            'filename': line['filename'],
            'basename': basename(line['filename']),
            'line': line['line_number']
        })
class GithubAdapter(HostingAdapter):
    def get_commit_url(self, change):
        return '{url}/commit/{node}'.format(**{
            'url': self.project.url,
            'node': change.node
        })
    def get_branch_url(self, change):
        return '{url}/tree/{branch}'.format(**{
            'url': self.project.url,
            'branch': change.branch
        })
    def get_line_url(self, change, line):
        return '{url}/blob/{node}/{filename}#L{line}'.format(**{
            'url': self.project.url,
            'node': change.node,
            'filename': line['filename'],
            'line': line['line_number']
        })
class HgwebAdapter(HostingAdapter):
    def get_commit_url(self, change):
        return '{url}/rev/{node}'.format(**{
            'url': self.project.url,
            'node': change.node
        })
    def get_branch_url(self, change):
        return '{url}/log/{branch}'.format(**{
            'url': self.project.url,
            'branch': change.branch
        })
    def get_line_url(self, change, line):
        return '{url}/file/{node}/{filename}#l{line}'.format(**{
            'url': self.project.url,
            'node': change.node,
            'filename': line['filename'],
            'line': line['line_number']
        })