package oci

import "testing"

func TestParseOCIPath(t *testing.T) {
	tests := []struct {
		name   string
		path   string
		want   ociPathInfo
		wantOK bool
	}{
		{
			name:   "simple repo manifest by tag",
			path:   "myrepo/manifests/latest",
			want:   ociPathInfo{name: "myrepo", kind: "manifests", reference: "latest"},
			wantOK: true,
		},
		{
			name:   "multi-segment repo manifest by tag",
			path:   "org/team/app/manifests/v1.0",
			want:   ociPathInfo{name: "org/team/app", kind: "manifests", reference: "v1.0"},
			wantOK: true,
		},
		{
			name:   "manifest by digest",
			path:   "myrepo/manifests/sha256:abc123def456",
			want:   ociPathInfo{name: "myrepo", kind: "manifests", reference: "sha256:abc123def456"},
			wantOK: true,
		},
		{
			name:   "simple repo blob",
			path:   "myrepo/blobs/sha256:abc123",
			want:   ociPathInfo{name: "myrepo", kind: "blobs", reference: "sha256:abc123"},
			wantOK: true,
		},
		{
			name:   "multi-segment repo blob",
			path:   "org/team/app/blobs/sha256:abc123",
			want:   ociPathInfo{name: "org/team/app", kind: "blobs", reference: "sha256:abc123"},
			wantOK: true,
		},
		{
			name:   "simple repo tags list",
			path:   "myrepo/tags/list",
			want:   ociPathInfo{name: "myrepo", kind: "tags", reference: "list"},
			wantOK: true,
		},
		{
			name:   "multi-segment repo tags list",
			path:   "org/app/tags/list",
			want:   ociPathInfo{name: "org/app", kind: "tags", reference: "list"},
			wantOK: true,
		},
		{
			name:   "empty path",
			path:   "",
			wantOK: false,
		},
		{
			name:   "just repo name",
			path:   "myrepo",
			wantOK: false,
		},
		{
			name:   "unknown operation",
			path:   "myrepo/unknown/ref",
			wantOK: false,
		},
		{
			name:   "manifests with no ref",
			path:   "myrepo/manifests/",
			wantOK: false,
		},
		{
			name:   "blobs with no digest",
			path:   "myrepo/blobs/",
			wantOK: false,
		},
		{
			name:   "tags without list suffix",
			path:   "myrepo/tags/something",
			wantOK: false,
		},
		{
			name:   "no repo name before manifests",
			path:   "/manifests/latest",
			wantOK: false,
		},
		{
			name:   "upload initiate (trailing slash)",
			path:   "myrepo/blobs/uploads/",
			want:   ociPathInfo{name: "myrepo", kind: "uploads", reference: ""},
			wantOK: true,
		},
		{
			name:   "upload initiate (no trailing slash)",
			path:   "myrepo/blobs/uploads",
			want:   ociPathInfo{name: "myrepo", kind: "uploads", reference: ""},
			wantOK: true,
		},
		{
			name:   "upload with uuid",
			path:   "myrepo/blobs/uploads/abc-123-def",
			want:   ociPathInfo{name: "myrepo", kind: "uploads", reference: "abc-123-def"},
			wantOK: true,
		},
		{
			name:   "multi-segment repo upload",
			path:   "org/team/app/blobs/uploads/uuid-456",
			want:   ociPathInfo{name: "org/team/app", kind: "uploads", reference: "uuid-456"},
			wantOK: true,
		},
		{
			name:   "multi-segment repo upload initiate",
			path:   "org/team/app/blobs/uploads/",
			want:   ociPathInfo{name: "org/team/app", kind: "uploads", reference: ""},
			wantOK: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, ok := parseOCIPath(tt.path)
			if ok != tt.wantOK {
				t.Fatalf("parseOCIPath(%q) ok = %v, want %v", tt.path, ok, tt.wantOK)
			}
			if !ok {
				return
			}
			if got.name != tt.want.name {
				t.Errorf("name: got %q, want %q", got.name, tt.want.name)
			}
			if got.kind != tt.want.kind {
				t.Errorf("kind: got %q, want %q", got.kind, tt.want.kind)
			}
			if got.reference != tt.want.reference {
				t.Errorf("reference: got %q, want %q", got.reference, tt.want.reference)
			}
		})
	}
}