daedra 0.3.2

Self-contained web search MCP server. 9 backends with automatic fallback. Works from any IP.
Documentation 
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use crate::types::ContentType;

struct SubstringRule {
    content_type: ContentType,
    patterns: &'static [&'static str],
}

const SUBSTRING_RULES: &[SubstringRule] = &[
    SubstringRule {
        content_type: ContentType::Documentation,
        patterns: &[
            "docs.",
            "/docs/",
            "/documentation/",
            "readthedocs",
            "javadoc",
            "/api/",
        ],
    },
    SubstringRule {
        content_type: ContentType::Documentation,
        patterns: &[
            "github.com",
            "gitlab.com",
            "stackoverflow.com",
            "stackexchange.com",
            "bitbucket.org",
        ],
    },
    SubstringRule {
        content_type: ContentType::Social,
        patterns: &[
            "twitter.com",
            "x.com",
            "facebook.com",
            "linkedin.com",
            "instagram.com",
            "tiktok.com",
        ],
    },
    SubstringRule {
        content_type: ContentType::Forum,
        patterns: &["reddit.com", "forum", "discourse", "community."],
    },
    SubstringRule {
        content_type: ContentType::Video,
        patterns: &["youtube.com", "youtu.be", "vimeo.com", "twitch.tv"],
    },
    SubstringRule {
        content_type: ContentType::Shopping,
        patterns: &["amazon.", "ebay.", "shop.", "/shop/", "store."],
    },
    SubstringRule {
        content_type: ContentType::Article,
        patterns: &["news.", "/news/", "bbc.", "cnn.", "nytimes.", "reuters."],
    },
];

/// Classify a search result URL into a [`ContentType`] using substring rules.
pub fn classify_search_url(url: &str) -> ContentType {
    let lower = url.to_lowercase();
    for rule in SUBSTRING_RULES {
        if rule.patterns.iter().any(|p| lower.contains(p)) {
            return rule.content_type;
        }
    }
    ContentType::Article
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_classify_docs() {
        assert_eq!(
            classify_search_url("https://docs.example.com/guide"),
            ContentType::Documentation
        );
    }

    #[test]
    fn test_classify_github() {
        assert_eq!(
            classify_search_url("https://github.com/org/repo"),
            ContentType::Documentation
        );
    }

    #[test]
    fn test_classify_social() {
        assert_eq!(
            classify_search_url("https://twitter.com/user"),
            ContentType::Social
        );
    }

    #[test]
    fn test_classify_forum() {
        assert_eq!(
            classify_search_url("https://reddit.com/r/rust"),
            ContentType::Forum
        );
    }

    #[test]
    fn test_classify_video() {
        assert_eq!(
            classify_search_url("https://youtube.com/watch?v=abc"),
            ContentType::Video
        );
    }

    #[test]
    fn test_classify_shopping() {
        assert_eq!(
            classify_search_url("https://amazon.com/product"),
            ContentType::Shopping
        );
    }

    #[test]
    fn test_classify_news() {
        assert_eq!(
            classify_search_url("https://news.example.com/story"),
            ContentType::Article
        );
    }

    #[test]
    fn test_classify_unknown() {
        assert_eq!(
            classify_search_url("https://random-site.example.org/page"),
            ContentType::Article
        );
    }

    #[test]
    fn test_classify_case_insensitive() {
        assert_eq!(
            classify_search_url("https://Twitter.COM/user"),
            ContentType::Social
        );
    }
}