| 282 | } |
| 283 | |
| 284 | func (c *chatConfigCache) DefaultModelConfig(ctx context.Context) (database.ChatModelConfig, error) { |
| 285 | if config, ok := c.cachedDefaultModelConfig(); ok { |
| 286 | return config, nil |
| 287 | } |
| 288 | |
| 289 | snap := c.defaultModelConfigSnapshot() |
| 290 | config, err := singleflightDoChan(ctx, &c.defaultModelConfigFetches, fmt.Sprintf("%d:default", snap.epoch), func() (database.ChatModelConfig, error) { |
| 291 | if cached, ok := c.cachedDefaultModelConfig(); ok { |
| 292 | return cached, nil |
| 293 | } |
| 294 | |
| 295 | fetched, err := c.db.GetDefaultChatModelConfig(c.ctx) |
| 296 | if err != nil { |
| 297 | return database.ChatModelConfig{}, err |
| 298 | } |
| 299 | c.storeDefaultModelConfig(snap, fetched) |
| 300 | return cloneModelConfig(fetched), nil |
| 301 | }) |
| 302 | if err != nil { |
| 303 | return database.ChatModelConfig{}, err |
| 304 | } |
| 305 | |
| 306 | return config, nil |
| 307 | } |
| 308 | |
| 309 | func (c *chatConfigCache) cachedDefaultModelConfig() (database.ChatModelConfig, bool) { |
| 310 | c.mu.RLock() |