from __future__ import absolute_import
import peewee as pw
from candolint import adapters
database = pw.SqliteDatabase(None, pragmas={'journal_mode': 'wal'})
class BaseModel(pw.Model):
    class Meta:
        database = database
    @classmethod
    def manual_upsert(cls, **kwargs):
        try:
            with cls._meta.database.atomic():
                return cls.create(**kwargs), True
        except pw.IntegrityError:
            # a variation on https://github.com/coleifer/peewee/pull/681
            query = []
            compound_unique = set()
            for field_names, unique in cls._meta.indexes:
                if unique:
                    compound_unique.update(field_names)
            for field_name, value in kwargs.items():
                field = getattr(cls, field_name)
                if field.unique or field.primary_key or field_name in compound_unique:
                    query.append(field == value)
            instance = cls.get(*query)
            for field_name, value in kwargs.items():
                setattr(instance, field_name, value)
            instance.save()
            return instance, False
class Project(BaseModel):
    url = pw.CharField(unique=True)
    domain = pw.CharField()
    user = pw.CharField(null=True)
    name = pw.CharField()
    class Meta:
        indexes = (
            (('domain', 'user', 'name'), True),
        )
    def get_url(self, request=None):
        if request is not None:
            base = '{}://{}'.format(request.protocol, request.host)
            return base + self.get_url()
        else:
            user = self.user if self.user is not None else '-'
            return '/{}/{}/{}'.format(self.domain, user, self.name)
    def get_adapter(self):
        if self.domain == 'bitbucket.org':
            return adapters.BitbucketAdapter(self)
        elif self.domain == 'github.com':
            return adapters.GithubAdapter(self)
        elif self.domain.startswith('hg.') or 'mercurial' in self.domain:
            return adapters.HgwebAdapter(self)
        else:
            return adapters.HostingAdapter(self)
class Change(BaseModel):
    rev = pw.IntegerField(null=True)
    node = pw.CharField()
    branch = pw.CharField()
    date = pw.DateTimeField()
    author = pw.CharField()
    message = pw.CharField()
    project = pw.ForeignKeyField(Project, backref='changes')
    class Meta:
        indexes = (
            (('node', 'project'), True),
        )
class Check(BaseModel):
    ordinal = pw.IntegerField()
    errors = pw.IntegerField()
    warnings = pw.IntegerField()
    lines = pw.TextField()
    success = pw.BooleanField()
    started = pw.DateTimeField()
    finished = pw.DateTimeField()
    project = pw.ForeignKeyField(Project, backref='checks')
    change = pw.ForeignKeyField(Change, backref='checks')
    class Meta:
        indexes = (
            (('project', 'ordinal'), True),
        )
    def get_duration(self):
        d = self.finished - self.started
        minutes, seconds = divmod(int(d.total_seconds()), 60)
        result = []
        if minutes:
            result.append('{} min'.format(minutes))
        if seconds or not minutes:
            result.append('{} sec'.format(seconds))
        return ' '.join(result)
    @classmethod
    def get_next_ordinal(cls, project):
        return (cls
            .select(pw.fn.COALESCE(pw.fn.MAX(cls.ordinal), 0) + 1)
            .where(cls.project == project))
    @classmethod
    def get_light_fields(cls):
        return [
            field for field in cls._meta.fields.values()
            if not isinstance(field, pw.TextField)
        ]