from lib.db_revision import DBRevision
from lib.request import Request


class TreeBuilder:
    def __init__(self, db):
        self.db = db

    def filtered_revisions(self, project, package):
        revisions = DBRevision.all_revisions(self.db, project, package)
        revisions.sort()
        ret = []
        prev = None
        for rev in revisions:
            if rev.broken:
                continue
            if prev and prev.files_hash == rev.files_hash:
                continue
            ret.append(rev)
            prev = rev
        return ret

    def build(self, package):
        factory_revisions = self.filtered_revisions("openSUSE:Factory", package)
        source_revisions = dict()
        for rev in factory_revisions:
            print(rev, rev.files_hash)
            if rev.request_id:
                req = Request.find(self.db, rev.request_id)
                print("  ", req)
                key = f"{req.source_project}/{req.source_package}"
                if key not in source_revisions:
                    source_revisions[key] = self.filtered_revisions(
                        req.source_project, req.source_package
                    )
                for rev2 in source_revisions.get(key):
                    # this happened after the fact - possibly a revert
                    if rev2.commit_time > rev.commit_time:
                        continue
                    if rev2.files_hash == rev.files_hash:
                        print("    ", rev2)