1package bug
 2
 3import (
 4	"github.com/MichaelMure/git-bug/entity"
 5	"github.com/MichaelMure/git-bug/repository"
 6	"github.com/MichaelMure/git-bug/util/lamport"
 7)
 8
 9type Interface interface {
10	// Id return the Bug identifier
11	Id() entity.Id
12
13	// Validate check if the Bug data is valid
14	Validate() error
15
16	// Append an operation into the staging area, to be committed later
17	Append(op Operation)
18
19	// Indicate that the in-memory state changed and need to be commit in the repository
20	NeedCommit() bool
21
22	// Commit write the staging area in Git and move the operations to the packs
23	Commit(repo repository.ClockedRepo) error
24
25	// Merge a different version of the same bug by rebasing operations of this bug
26	// that are not present in the other on top of the chain of operations of the
27	// other version.
28	Merge(repo repository.Repo, other Interface) (bool, error)
29
30	// Lookup for the very first operation of the bug.
31	// For a valid Bug, this operation should be a CreateOp
32	FirstOp() Operation
33
34	// Lookup for the very last operation of the bug.
35	// For a valid Bug, should never be nil
36	LastOp() Operation
37
38	// Compile a bug in a easily usable snapshot
39	Compile() Snapshot
40
41	// CreateLamportTime return the Lamport time of creation
42	CreateLamportTime() lamport.Time
43
44	// EditLamportTime return the Lamport time of the last edit
45	EditLamportTime() lamport.Time
46}
47
48func bugFromInterface(bug Interface) *Bug {
49	switch bug := bug.(type) {
50	case *Bug:
51		return bug
52	case *WithSnapshot:
53		return bug.Bug
54	default:
55		panic("missing type case")
56	}
57}