Merge pull request #407 from lukegb/fix-402

Add support for read-only mode for web UI.

1 files changed, 188 insertions, 0 deletions

diff --git a/api/graphql/resolvers/repo.go b/api/graphql/resolvers/repo.go
new file mode 100644
index 00000000..5d96428e
--- /dev/null
+++ b/api/graphql/resolvers/repo.go
@@ -0,0 +1,188 @@
+package resolvers
+
+import (
+	"context"
+
+	"github.com/MichaelMure/git-bug/api/auth"
+	"github.com/MichaelMure/git-bug/api/graphql/connections"
+	"github.com/MichaelMure/git-bug/api/graphql/graph"
+	"github.com/MichaelMure/git-bug/api/graphql/models"
+	"github.com/MichaelMure/git-bug/bug"
+	"github.com/MichaelMure/git-bug/entity"
+	"github.com/MichaelMure/git-bug/query"
+)
+
+var _ graph.RepositoryResolver = &repoResolver{}
+
+type repoResolver struct{}
+
+func (repoResolver) Name(_ context.Context, obj *models.Repository) (*string, error) {
+	name := obj.Repo.Name()
+	return &name, nil
+}
+
+func (repoResolver) AllBugs(_ context.Context, obj *models.Repository, after *string, before *string, first *int, last *int, queryStr *string) (*models.BugConnection, error) {
+	input := models.ConnectionInput{
+		Before: before,
+		After:  after,
+		First:  first,
+		Last:   last,
+	}
+
+	var q *query.Query
+	if queryStr != nil {
+		query2, err := query.Parse(*queryStr)
+		if err != nil {
+			return nil, err
+		}
+		q = query2
+	} else {
+		q = query.NewQuery()
+	}
+
+	// Simply pass a []string with the ids to the pagination algorithm
+	source := obj.Repo.QueryBugs(q)
+
+	// The edger create a custom edge holding just the id
+	edger := func(id entity.Id, offset int) connections.Edge {
+		return connections.LazyBugEdge{
+			Id:     id,
+			Cursor: connections.OffsetToCursor(offset),
+		}
+	}
+
+	// The conMaker will finally load and compile bugs from git to replace the selected edges
+	conMaker := func(lazyBugEdges []*connections.LazyBugEdge, lazyNode []entity.Id, info *models.PageInfo, totalCount int) (*models.BugConnection, error) {
+		edges := make([]*models.BugEdge, len(lazyBugEdges))
+		nodes := make([]models.BugWrapper, len(lazyBugEdges))
+
+		for i, lazyBugEdge := range lazyBugEdges {
+			excerpt, err := obj.Repo.ResolveBugExcerpt(lazyBugEdge.Id)
+			if err != nil {
+				return nil, err
+			}
+
+			b := models.NewLazyBug(obj.Repo, excerpt)
+
+			edges[i] = &models.BugEdge{
+				Cursor: lazyBugEdge.Cursor,
+				Node:   b,
+			}
+			nodes[i] = b
+		}
+
+		return &models.BugConnection{
+			Edges:      edges,
+			Nodes:      nodes,
+			PageInfo:   info,
+			TotalCount: totalCount,
+		}, nil
+	}
+
+	return connections.LazyBugCon(source, edger, conMaker, input)
+}
+
+func (repoResolver) Bug(_ context.Context, obj *models.Repository, prefix string) (models.BugWrapper, error) {
+	excerpt, err := obj.Repo.ResolveBugExcerptPrefix(prefix)
+	if err != nil {
+		return nil, err
+	}
+
+	return models.NewLazyBug(obj.Repo, excerpt), nil
+}
+
+func (repoResolver) AllIdentities(_ context.Context, obj *models.Repository, after *string, before *string, first *int, last *int) (*models.IdentityConnection, error) {
+	input := models.ConnectionInput{
+		Before: before,
+		After:  after,
+		First:  first,
+		Last:   last,
+	}
+
+	// Simply pass a []string with the ids to the pagination algorithm
+	source := obj.Repo.AllIdentityIds()
+
+	// The edger create a custom edge holding just the id
+	edger := func(id entity.Id, offset int) connections.Edge {
+		return connections.LazyIdentityEdge{
+			Id:     id,
+			Cursor: connections.OffsetToCursor(offset),
+		}
+	}
+
+	// The conMaker will finally load and compile identities from git to replace the selected edges
+	conMaker := func(lazyIdentityEdges []*connections.LazyIdentityEdge, lazyNode []entity.Id, info *models.PageInfo, totalCount int) (*models.IdentityConnection, error) {
+		edges := make([]*models.IdentityEdge, len(lazyIdentityEdges))
+		nodes := make([]models.IdentityWrapper, len(lazyIdentityEdges))
+
+		for k, lazyIdentityEdge := range lazyIdentityEdges {
+			excerpt, err := obj.Repo.ResolveIdentityExcerpt(lazyIdentityEdge.Id)
+			if err != nil {
+				return nil, err
+			}
+
+			i := models.NewLazyIdentity(obj.Repo, excerpt)
+
+			edges[k] = &models.IdentityEdge{
+				Cursor: lazyIdentityEdge.Cursor,
+				Node:   i,
+			}
+			nodes[k] = i
+		}
+
+		return &models.IdentityConnection{
+			Edges:      edges,
+			Nodes:      nodes,
+			PageInfo:   info,
+			TotalCount: totalCount,
+		}, nil
+	}
+
+	return connections.LazyIdentityCon(source, edger, conMaker, input)
+}
+
+func (repoResolver) Identity(_ context.Context, obj *models.Repository, prefix string) (models.IdentityWrapper, error) {
+	excerpt, err := obj.Repo.ResolveIdentityExcerptPrefix(prefix)
+	if err != nil {
+		return nil, err
+	}
+
+	return models.NewLazyIdentity(obj.Repo, excerpt), nil
+}
+
+func (repoResolver) UserIdentity(ctx context.Context, obj *models.Repository) (models.IdentityWrapper, error) {
+	id, err := auth.UserFromCtx(ctx, obj.Repo)
+	if err == auth.ErrNotAuthenticated {
+		return nil, nil
+	} else if err != nil {
+		return nil, err
+	}
+	return models.NewLoadedIdentity(id.Identity), nil
+}
+
+func (repoResolver) ValidLabels(_ context.Context, obj *models.Repository, after *string, before *string, first *int, last *int) (*models.LabelConnection, error) {
+	input := models.ConnectionInput{
+		Before: before,
+		After:  after,
+		First:  first,
+		Last:   last,
+	}
+
+	edger := func(label bug.Label, offset int) connections.Edge {
+		return models.LabelEdge{
+			Node:   label,
+			Cursor: connections.OffsetToCursor(offset),
+		}
+	}
+
+	conMaker := func(edges []*models.LabelEdge, nodes []bug.Label, info *models.PageInfo, totalCount int) (*models.LabelConnection, error) {
+		return &models.LabelConnection{
+			Edges:      edges,
+			Nodes:      nodes,
+			PageInfo:   info,
+			TotalCount: totalCount,
+		}, nil
+	}
+
+	return connections.LabelCon(obj.Repo.ValidLabels(), edger, conMaker, input)
+}