49 lines
1.8 KiB
SQL
49 lines
1.8 KiB
SQL
-- Best Icon Selection
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-- Picks the best completed icon for each host and stores its s3_key in hosts.best_icon_s3_key.
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--
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-- Priority:
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-- 1. Standard square sizes (64 > 48 > 32 > 16) — ideal for tab display
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-- 2. Other square sizes ≤64
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-- 3. Non-square sizes ≤64 on both axes
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-- 4. Anything larger (downloaded because rel_sizes was undeclared)
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-- 5. Among equal priority: prefer PNG/GIF/ICO over WebP (SVGs excluded — not supported in bundle generation)
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-- 6. Tiebreaker: smaller file size (less bandwidth in bundles)
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--
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-- Usage: psql $DATABASE_URL -f pipeline/04_best_icon/select.sql
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UPDATE hosts h SET best_icon_s3_key = sub.s3_key
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FROM (
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SELECT DISTINCT ON (i.host_id) i.host_id, i.s3_key
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FROM icons i
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WHERE i.scan_state = 'completed'
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AND i.s3_key IS NOT NULL
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AND i.content_type NOT IN ('image/svg+xml')
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AND (i.width IS NULL OR i.width > 2)
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AND (i.height IS NULL OR i.height > 2)
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ORDER BY i.host_id,
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CASE
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WHEN i.width = i.height AND i.width IN (64, 48, 32, 16) THEN 0
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WHEN i.width = i.height AND i.width <= 64 THEN 1
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WHEN i.width IS NOT NULL AND i.width <= 64 AND i.height IS NOT NULL AND i.height <= 64 THEN 2
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ELSE 3
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END,
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COALESCE(i.width, 0) DESC,
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CASE
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WHEN i.content_type IN ('image/png', 'image/gif', 'image/x-icon', 'image/vnd.microsoft.icon') THEN 0
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WHEN i.content_type = 'image/webp' THEN 1
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ELSE 2
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END,
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i.file_size ASC
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) sub
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WHERE h.id = sub.host_id;
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-- Stats
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\echo '--- Best Icon Selection Stats ---'
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SELECT
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COUNT(*) FILTER (WHERE best_icon_s3_key IS NOT NULL) AS hosts_with_icon,
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COUNT(*) FILTER (WHERE best_icon_s3_key IS NULL) AS hosts_without_icon,
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COUNT(*) FILTER (WHERE html_title IS NOT NULL) AS hosts_with_title,
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COUNT(*) FILTER (WHERE html_title IS NOT NULL AND best_icon_s3_key IS NULL) AS title_but_no_icon
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FROM hosts
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WHERE parsed = TRUE;
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