| 1 | package daemon |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "fmt" |
| 7 | "time" |
| 8 | |
| 9 | "github.com/FelineStateMachine/tinyrelay/internal/event" |
| 10 | gitrelay "github.com/FelineStateMachine/tinyrelay/tinygit" |
| 11 | "github.com/FelineStateMachine/tinyrelay/internal/replication" |
| 12 | "github.com/FelineStateMachine/tinyrelay/internal/storage" |
| 13 | ) |
| 14 | |
| 15 | const gitOutboxOffsetPrefix = "grasp03.outbox-offset." |
| 16 | |
| 17 | type tenantGitOutboxTransport struct { |
| 18 | tenant *Tenant |
| 19 | repo gitrelay.Repository |
| 20 | } |
| 21 | |
| 22 | func (t tenantGitOutboxTransport) Query(ctx context.Context, target string, filter event.Filter) ([]event.Event, error) { |
| 23 | requestCtx, cancel := context.WithTimeout(ctx, 5*time.Second) |
| 24 | defer cancel() |
| 25 | transport, err := t.tenant.gitTargetTransport(requestCtx, t.repo, target) |
| 26 | if err != nil { |
| 27 | return nil, err |
| 28 | } |
| 29 | return transport.Query(requestCtx, target, filter) |
| 30 | } |
| 31 | |
| 32 | // gitOutboxSync imports participant relay lists, then asks each discovered |
| 33 | // outbox for the repository conversation. List events are ingested first so |
| 34 | // the discovered routing remains durable after a restart. |
| 35 | func (t *Tenant) gitOutboxSync(ctx context.Context, repo gitrelay.Repository) error { |
| 36 | if t == nil || t.store == nil { |
| 37 | return errors.New("GRASP-03: tenant store is required" ) |
| 38 | } |
| 39 | events, err := t.gitConversationEvents(ctx, repo) |
| 40 | if err != nil { |
| 41 | return err |
| 42 | } |
| 43 | authors := gitConversationAuthors(events, repo.Owner, repo.Maintainers) |
| 44 | offset := t.gitOutboxOffset(ctx, repo) |
| 45 | selectedAuthors := boundedGitAuthorsFrom(authors, offset%maxGitInt(len(authors), 1)) |
| 46 | private := repo.Private || t.PrivateServiceEnabled() |
| 47 | options := gitOutboxOptions{Transport: tenantGitOutboxTransport{tenant: t, repo: repo}, Seeds: repo.Relays, Private: private, PrivatePeers: t.Policy().PrivatePeers, AuthorOffset: 0, SeedOffset: offset} |
| 48 | listEvents, err := t.gitLocalOutboxEvents(ctx, selectedAuthors) |
| 49 | if err != nil { |
| 50 | return err |
| 51 | } |
| 52 | discovered, discoverErr := discoverGitOutboxEvents(ctx, options, selectedAuthors) |
| 53 | listEvents = mergeGitOutboxEvents(listEvents, discovered) |
| 54 | var syncErrors []error |
| 55 | if err := t.ingestGitOutboxEvents(ctx, discovered); err != nil { |
| 56 | syncErrors = append(syncErrors, err) |
| 57 | } |
| 58 | if discoverErr != nil { |
| 59 | syncErrors = append(syncErrors, discoverErr) |
| 60 | } |
| 61 | if len(authors) > 0 { |
| 62 | if err := t.store.PutSetting(ctx, gitOutboxOffsetKey(repo), (offset+gitOutboxAuthorLimit)%len(authors)); err != nil { |
| 63 | syncErrors = append(syncErrors, fmt.Errorf("GRASP-03: save outbox offset: %w" , err)) |
| 64 | } |
| 65 | } |
| 66 | targets := gitOutboxRelays(listEvents, options.Private, options.PrivatePeers) |
| 67 | targets = rotateGitRelays(targets, offset) |
| 68 | for _, target := range targets { |
| 69 | targetCtx, cancel := context.WithTimeout(ctx, 8*time.Second) |
| 70 | if err := t.gitSyncPeer(targetCtx, repo, target); err != nil { |
| 71 | syncErrors = append(syncErrors, fmt.Errorf("GRASP-03: sync %s: %w" , target, err)) |
| 72 | } |
| 73 | cancel() |
| 74 | } |
| 75 | return errors.Join(syncErrors...) |
| 76 | } |
| 77 | |
| 78 | func (t *Tenant) gitLocalOutboxEvents(ctx context.Context, authors []string) ([]event.Event, error) { |
| 79 | result := make([]event.Event, 0, len(authors)*3) |
| 80 | for _, author := range authors { |
| 81 | for _, kind := range []int{event.KIND_PROFILE, 10002, 10317} { |
| 82 | rows, err := t.store.Query(ctx, event.Filter{Authors: []string{author}, Kinds: []int{kind}, Tags: map[string][]string{}}, storage.QueryOptions{Now: time.Now().Unix(), Access: storage.Access{All: true}, Limit: 1}) |
| 83 | if err != nil { |
| 84 | return nil, fmt.Errorf("GRASP-03: read cached outbox: %w" , err) |
| 85 | } |
| 86 | if len(rows.Events) > 0 { |
| 87 | result = append(result, rows.Events[0]) |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | return result, nil |
| 92 | } |
| 93 | |
| 94 | func rotateGitRelays(relays []string, offset int) []string { |
| 95 | if len(relays) == 0 { |
| 96 | return nil |
| 97 | } |
| 98 | start := offset % len(relays) |
| 99 | return append(append([]string(nil), relays[start:]...), relays[:start]...) |
| 100 | } |
| 101 | |
| 102 | func maxGitInt(a, b int) int { |
| 103 | if a > b { |
| 104 | return a |
| 105 | } |
| 106 | return b |
| 107 | } |
| 108 | |
| 109 | func mergeGitOutboxEvents(existing, incoming []event.Event) []event.Event { |
| 110 | result := append([]event.Event(nil), existing...) |
| 111 | for _, item := range incoming { |
| 112 | found := false |
| 113 | for i := range result { |
| 114 | if result[i].PubKey != item.PubKey || result[i].Kind != item.Kind { |
| 115 | continue |
| 116 | } |
| 117 | found = true |
| 118 | if item.CreatedAt > result[i].CreatedAt || (item.CreatedAt == result[i].CreatedAt && item.ID < result[i].ID) { |
| 119 | result[i] = item |
| 120 | } |
| 121 | break |
| 122 | } |
| 123 | if !found { |
| 124 | result = append(result, item) |
| 125 | } |
| 126 | } |
| 127 | return result |
| 128 | } |
| 129 | |
| 130 | func gitOutboxRelays(items []event.Event, private bool, peers []string) []string { |
| 131 | result := make([]string, 0, gitOutboxRelayLimit) |
| 132 | seen := make(map[string]struct{}, gitOutboxRelayLimit) |
| 133 | for _, item := range items { |
| 134 | for _, raw := range gitOutboxRelayTags(item) { |
| 135 | if !gitOutboxAllowedRelay(raw, private, peers) { |
| 136 | continue |
| 137 | } |
| 138 | canonical := normalizeRelayGit(raw) |
| 139 | if _, ok := seen[canonical]; ok { |
| 140 | continue |
| 141 | } |
| 142 | seen[canonical] = struct{}{} |
| 143 | result = append(result, canonical) |
| 144 | if len(result) == gitOutboxRelayLimit { |
| 145 | return result |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | return result |
| 150 | } |
| 151 | |
| 152 | func (t *Tenant) ingestGitOutboxEvents(ctx context.Context, items []event.Event) error { |
| 153 | for _, item := range items { |
| 154 | if err := t.ingest(ctx, item, replication.OriginImport); err != nil && !errors.Is(err, storage.ErrDuplicate) && !errors.Is(err, storage.ErrReplaced) { |
| 155 | return fmt.Errorf("GRASP-03: import outbox list: %w" , err) |
| 156 | } |
| 157 | } |
| 158 | return nil |
| 159 | } |
| 160 | |
| 161 | func (t *Tenant) gitOutboxOffset(ctx context.Context, repo gitrelay.Repository) int { |
| 162 | var offset int |
| 163 | if err := t.store.GetSetting(ctx, gitOutboxOffsetKey(repo), &offset); err != nil || offset < 0 { |
| 164 | return 0 |
| 165 | } |
| 166 | return offset |
| 167 | } |
| 168 | |
| 169 | func gitOutboxOffsetKey(repo gitrelay.Repository) string { |
| 170 | return gitOutboxOffsetPrefix + repo.Owner + ":" + repo.Identifier |
| 171 | } |