6271b0e5e5
Add Usage struct to parse prompt_tokens, completion_tokens, total_tokens, and cost from every OpenRouter response. Extraction functions now return (result, Option<Usage>) tuples. New ai_usage table stores per-call records with a repository trait and SQL implementation.
13 lines
446 B
SQL
13 lines
446 B
SQL
CREATE TABLE ai_usage (
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id INTEGER PRIMARY KEY,
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user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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model TEXT NOT NULL,
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endpoint TEXT NOT NULL,
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prompt_tokens INTEGER NOT NULL,
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completion_tokens INTEGER NOT NULL,
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total_tokens INTEGER NOT NULL,
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cost REAL NOT NULL,
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created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
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);
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CREATE INDEX idx_ai_usage_user_id ON ai_usage(user_id);
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