-- Entity read + mutation queries (API paths). Aliased `e` throughout to
-- avoid ambiguity with joined tables.

-- name: GetEntityByID :one
SELECT e.* FROM entities e WHERE e.id = $1;

-- name: GetEntityBySlug :one
SELECT e.* FROM entities e WHERE e.slug = $1;

-- name: ListEntities :many
WITH RECURSIVE tt AS (
    SELECT name FROM entity_types WHERE sqlc.narg('type')::text IS NULL OR name = sqlc.narg('type')
    UNION
    SELECT et.name FROM entity_types et JOIN tt ON et.parent_type = tt.name
    WHERE sqlc.narg('type')::text IS NOT NULL
)
SELECT e.* FROM entities e
JOIN entity_types et ON et.name = e.type
WHERE e.type IN (SELECT name FROM tt)
  AND (sqlc.narg('state')::text IS NULL OR e.state = sqlc.narg('state'))
  AND (sqlc.narg('domain')::text IS NULL OR et.domain = sqlc.narg('domain'))
  AND (sqlc.narg('layer')::text IS NULL OR et.layer = sqlc.narg('layer'))
  AND (sqlc.narg('q')::text IS NULL
       OR e.slug ILIKE '%'||sqlc.narg('q')||'%'
       OR e.name ILIKE '%'||sqlc.narg('q')||'%')
  AND (sqlc.narg('cursor')::text IS NULL OR e.slug > sqlc.narg('cursor'))
ORDER BY e.slug
LIMIT sqlc.arg('lim');

-- name: ListEntitiesCapped :many
SELECT e.* FROM entities e ORDER BY e.slug LIMIT $1;

-- name: InsertEntity :one
INSERT INTO entities (id, slug, type, name, state, attributes)
VALUES ($1, $2, $3, $4, $5, $6)
RETURNING *;

-- name: UpdateEntity :one
UPDATE entities SET
    name = COALESCE(sqlc.narg('name'), name),
    state = COALESCE(sqlc.narg('state'), state),
    attributes = COALESCE(sqlc.narg('attributes'), attributes),
    maintenance_until = CASE WHEN sqlc.arg('set_maintenance')::bool
                             THEN sqlc.narg('maintenance_until') ELSE maintenance_until END,
    version = version + 1,
    updated_at = now()
WHERE id = sqlc.arg('id') AND version = sqlc.arg('version')
RETURNING *;

-- blast_radius(): the recursive-CTE traversal function's TABLE return type
-- is opaque to sqlc's analyzer — that one query stays hand-written pgx in
-- internal/httpapi (see impl.go).