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feat: add Stack Overflow search engine

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Uses the Stack Exchange API v3 (/search/advanced) to find questions
sorted by relevance. No API key required (300 req/day); optionally
configure via STACKOVERFLOW_KEY env var or [engines.stackoverflow].

Results include score, answer count, view count, and tags in the
snippet. Assigned to the 'it' category, triggered by the IT category
tab or explicit engine selection.

6 tests covering parsing, edge cases, and helpers.
This commit is contained in:
Franz Kafka 2026-03-22 22:29:34 +00:00
parent e96040ef35
commit df67492602
5 changed files with 440 additions and 7 deletions
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9
internal/engines/factory.go
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@ -73,9 +73,18 @@ func NewDefaultPortedEngines(client *http.Client, cfg *config.Config) map[string
apiKey: youtubeAPIKey,
baseURL: "https://www.googleapis.com",
},
"stackoverflow": &StackOverflowEngine{client: client, apiKey: stackoverflowAPIKey(cfg)},
// Image engines
"bing_images": &BingImagesEngine{client: client},
"ddg_images": &DuckDuckGoImagesEngine{client: client},
"qwant_images": &QwantImagesEngine{client: client},
}
}
// stackoverflowAPIKey returns the Stack Overflow API key from config or env var.
func stackoverflowAPIKey(cfg *config.Config) string {
if cfg != nil && cfg.Engines.StackOverflow != nil && cfg.Engines.StackOverflow.APIKey != "" {
return cfg.Engines.StackOverflow.APIKey
}
return os.Getenv("STACKOVERFLOW_KEY")
}