| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "encoding/base64" |
| 5 | "encoding/json" |
| 6 | "path/filepath" |
| 7 | "strings" |
| 8 | |
| 9 | "reasonix/internal/history" |
| 10 | "reasonix/internal/historycatalog" |
| 11 | "reasonix/internal/provider" |
| 12 | "reasonix/internal/retrieval" |
| 13 | ) |
| 14 | |
| 15 | type targetHistorySliceCursor struct { |
| 16 | V int `json:"v"` |
| 17 | Target string `json:"target"` |
| 18 | Cursor string `json:"cursor"` |
| 19 | } |
| 20 | |
| 21 | func decodeTargetHistorySliceCursor(raw, target string) (string, error) { |
| 22 | raw = strings.TrimSpace(raw) |
| 23 | if raw == "" { |
| 24 | return "", nil |
| 25 | } |
| 26 | data, err := base64.RawURLEncoding.DecodeString(raw) |
| 27 | if err != nil { |
| 28 | return "", newSessionOperationError("stale_cursor", "The session content changed. Reload it and try again.") |
| 29 | } |
| 30 | var cursor targetHistorySliceCursor |
| 31 | if err := json.Unmarshal(data, &cursor); err != nil || cursor.V != 1 || cursor.Target != target { |
| 32 | return "", newSessionOperationError("stale_cursor", "The session content changed. Reload it and try again.") |
| 33 | } |
| 34 | return cursor.Cursor, nil |
| 35 | } |
| 36 | |
| 37 | func encodeTargetHistorySliceCursor(target, cursor string) string { |
| 38 | if strings.TrimSpace(cursor) == "" { |
| 39 | return "" |
| 40 | } |
| 41 | data, err := json.Marshal(targetHistorySliceCursor{V: 1, Target: target, Cursor: cursor}) |
| 42 | if err != nil { |
| 43 | return "" |
| 44 | } |
| 45 | return base64.RawURLEncoding.EncodeToString(data) |
| 46 | } |
| 47 | |
| 48 | // HistorySliceForTarget reads a bounded history page for either a canonical or |
| 49 | // legacy local session without selecting it or creating a controller. |
| 50 | func (a *App) HistorySliceForTarget(selector SessionSelector, req HistorySliceRequest) (HistorySlice, error) { |
| 51 | target, err := a.resolveSessionTargetWithArchived(selector, true) |
| 52 | if err != nil { |
| 53 | return emptyHistorySlice(), err |
| 54 | } |
| 55 | targetKey := target.key() |
| 56 | req.Cursor, err = decodeTargetHistorySliceCursor(req.Cursor, targetKey) |
| 57 | if err != nil { |
| 58 | return emptyHistorySlice(), err |
| 59 | } |
| 60 | req = normalizeHistorySliceRequest(req) |
| 61 | if target.SessionRef.SessionID != "" { |
| 62 | page, err := a.canonicalHistorySlice(a.desktopSessionService("").Query(), target.SessionRef, "", "", req) |
| 63 | page.NextCursor = encodeTargetHistorySliceCursor(targetKey, page.NextCursor) |
| 64 | return page, err |
| 65 | } |
| 66 | dir, path, err := a.sessionDirForPath(target.SessionPath) |
| 67 | if err != nil { |
| 68 | return emptyHistorySlice(), newSessionOperationError(sessionOperationTargetNotFound, "The session no longer exists.") |
| 69 | } |
| 70 | page, err := a.coldHistorySlice(dir, path, req) |
| 71 | if err != nil { |
| 72 | if strings.Contains(strings.ToLower(err.Error()), "cursor") { |
| 73 | return emptyHistorySlice(), newSessionOperationError("stale_cursor", "The session content changed. Reload it and try again.") |
| 74 | } |
| 75 | return emptyHistorySlice(), err |
| 76 | } |
| 77 | page.NextCursor = encodeTargetHistorySliceCursor(targetKey, page.NextCursor) |
| 78 | return page, nil |
| 79 | } |
| 80 | |
| 81 | type targetHistorySearchCursor struct { |
| 82 | V int `json:"v"` |
| 83 | Revision uint64 `json:"revision"` |
| 84 | Path string `json:"path"` |
| 85 | Query string `json:"query"` |
| 86 | Rank float64 `json:"rank"` |
| 87 | Message int `json:"message"` |
| 88 | Part int `json:"part"` |
| 89 | RowID int64 `json:"rowId"` |
| 90 | } |
| 91 | |
| 92 | func encodeTargetHistorySearchCursor(cursor targetHistorySearchCursor) string { |
| 93 | data, err := json.Marshal(cursor) |
| 94 | if err != nil { |
| 95 | return "" |
| 96 | } |
| 97 | return base64.RawURLEncoding.EncodeToString(data) |
| 98 | } |
| 99 | |
| 100 | func decodeTargetHistorySearchCursor(raw, path, query string, revision uint64) (*historycatalog.SearchCursor, error) { |
| 101 | raw = strings.TrimSpace(raw) |
| 102 | if raw == "" { |
| 103 | return nil, nil |
| 104 | } |
| 105 | data, err := base64.RawURLEncoding.DecodeString(raw) |
| 106 | if err != nil { |
| 107 | return nil, newSessionOperationError("stale_cursor", "The session content changed. Reload it and try again.") |
| 108 | } |
| 109 | var cursor targetHistorySearchCursor |
| 110 | if err := json.Unmarshal(data, &cursor); err != nil || |
| 111 | cursor.V != 1 || cursor.Revision != revision || |
| 112 | sessionRuntimeKey(cursor.Path) != sessionRuntimeKey(path) || |
| 113 | cursor.Query != strings.TrimSpace(query) { |
| 114 | return nil, newSessionOperationError("stale_cursor", "The session content changed. Reload it and try again.") |
| 115 | } |
| 116 | return &historycatalog.SearchCursor{ |
| 117 | Rank: cursor.Rank, SessionPath: path, MessageIndex: cursor.Message, |
| 118 | PartIndex: cursor.Part, RowID: cursor.RowID, |
| 119 | }, nil |
| 120 | } |
| 121 | |
| 122 | // SearchHistoryContentForTarget searches the disposable legacy history index |
| 123 | // for one exact session. The cursor is bound to target, query, and index |
| 124 | // revision, so changing tabs or replaying a cursor against a sibling cannot |
| 125 | // change the routed object. |
| 126 | func (a *App) SearchHistoryContentForTarget(selector SessionSelector, query, cursor string, limit int) (HistorySearchPage, error) { |
| 127 | target, err := a.resolveSessionTargetWithArchived(selector, true) |
| 128 | if err != nil { |
| 129 | return HistorySearchPage{Items: []HistorySearchHit{}}, err |
| 130 | } |
| 131 | if target.SessionRef.SessionID != "" { |
| 132 | return HistorySearchPage{Items: []HistorySearchHit{}}, newSessionOperationError("unsupported", "Use canonical session search for this session.") |
| 133 | } |
| 134 | _, path, err := a.sessionDirForPath(target.SessionPath) |
| 135 | if err != nil { |
| 136 | return HistorySearchPage{Items: []HistorySearchHit{}}, newSessionOperationError(sessionOperationTargetNotFound, "The session no longer exists.") |
| 137 | } |
| 138 | status := a.GetHistoryIndexStatus() |
| 139 | out := HistorySearchPage{Items: []HistorySearchHit{}, Status: status, Revision: status.Revision, |
| 140 | Partial: status.State != "ready" || status.Pending > 0 || (status.Total > 0 && status.Indexed < status.Total)} |
| 141 | catalog := history.SharedCatalog() |
| 142 | query = strings.TrimSpace(query) |
| 143 | if catalog == nil || query == "" { |
| 144 | return out, nil |
| 145 | } |
| 146 | after, err := decodeTargetHistorySearchCursor(cursor, path, query, status.Revision) |
| 147 | if err != nil { |
| 148 | return out, err |
| 149 | } |
| 150 | if limit <= 0 { |
| 151 | limit = 50 |
| 152 | } |
| 153 | if limit > 200 { |
| 154 | limit = 200 |
| 155 | } |
| 156 | result, err := catalog.Search(a.bootContext(), historycatalog.SearchRequest{ |
| 157 | Query: query, SessionPath: path, |
| 158 | Kinds: []string{"user_text", "assistant_text", "tool_input", "tool_error"}, |
| 159 | Limit: limit + 1, After: after, |
| 160 | }) |
| 161 | if err != nil { |
| 162 | return out, err |
| 163 | } |
| 164 | queryTerms, _ := retrieval.QueryTerms(query) |
| 165 | _, overlays := a.catalogRuntimeOverlays() |
| 166 | loaded := map[string][]provider.Message{} |
| 167 | recoveryChecked, recoveryCovered := map[string]bool{}, map[string]bool{} |
| 168 | for _, candidate := range result.Items { |
| 169 | hit, ok := a.historyHitFromCandidate( |
| 170 | HistorySearchRequest{Query: query}, candidate, "", overlays, queryTerms, |
| 171 | loaded, recoveryChecked, recoveryCovered, catalog, |
| 172 | ) |
| 173 | if ok { |
| 174 | out.Items = append(out.Items, hit) |
| 175 | } |
| 176 | } |
| 177 | if len(result.Items) > limit { |
| 178 | last := result.Items[limit-1] |
| 179 | out.Items = out.Items[:min(len(out.Items), limit)] |
| 180 | out.NextCursor = encodeTargetHistorySearchCursor(targetHistorySearchCursor{ |
| 181 | V: 1, Revision: status.Revision, Path: filepath.Clean(path), Query: query, |
| 182 | Rank: last.Rank, Message: last.MessageIndex, Part: last.PartIndex, RowID: last.RowID, |
| 183 | }) |
| 184 | } |
| 185 | return out, nil |
| 186 | } |
| 187 |