-- name: ListSignals :many
SELECT sig.entity_id, se.slug, sig.kind, sig.severity, sig.state,
       te.slug AS target_slug, sig.check_id, sig.evidence, sig.likely_cause,
       sig.occurrence_count, sig.flap_count, sig.hold_down_until,
       sig.mute_until, sig.first_seen_at, sig.last_seen_at
FROM signals sig
JOIN entities se ON se.id = sig.entity_id
LEFT JOIN entities te ON te.id = sig.target_entity_id
WHERE (sqlc.narg('state')::text IS NULL OR sig.state = sqlc.narg('state'))
  AND (sqlc.narg('severity')::text IS NULL OR sig.severity = sqlc.narg('severity'))
  AND (sqlc.narg('target')::text IS NULL OR te.slug = sqlc.narg('target'))
  AND (sqlc.narg('kind')::text IS NULL OR sig.kind = sqlc.narg('kind'))
  AND (sqlc.narg('cursor')::text IS NULL OR se.slug > sqlc.narg('cursor'))
ORDER BY se.slug
LIMIT sqlc.arg('lim');

-- name: ListEntityStatus :many
SELECT e.slug, e.type, st.health, st.last_check_at
FROM entity_status st JOIN entities e ON e.id = st.entity_id
ORDER BY e.slug;

-- name: GetIdempotentResponse :one
SELECT response_code, response_body, request_hash FROM idempotency_keys
WHERE actor = $1 AND key = $2;

-- name: PutIdempotentResponse :exec
INSERT INTO idempotency_keys (actor, key, request_hash, response_code, response_body)
VALUES ($1, $2, $3, $4, $5)
ON CONFLICT (actor, key) DO NOTHING;

-- name: InsertAuditEntry :exec
INSERT INTO audit_log (actor_type, actor_id, action, entity_id, method, path,
                       status_code, detail, source_ip, correlation_id)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);

-- name: InsertEvent :one
INSERT INTO events (type, entity_id, severity, source, data, correlation_id)
VALUES ($1, $2, $3, $4, $5, $6)
RETURNING id, ts;

-- name: ListEvents :many
SELECT id, ts, type, entity_id, severity, source, data, correlation_id
FROM events
WHERE (sqlc.narg('type')::text IS NULL OR type = sqlc.narg('type'))
  AND (sqlc.narg('entity_id')::uuid IS NULL OR entity_id = sqlc.narg('entity_id'))
  AND (sqlc.narg('severity')::text IS NULL OR severity = sqlc.narg('severity'))
  AND (sqlc.narg('correlation_id')::text IS NULL OR correlation_id = sqlc.narg('correlation_id'))
  AND (sqlc.narg('from_ts')::timestamptz IS NULL OR ts >= sqlc.narg('from_ts'))
  AND (sqlc.narg('to_ts')::timestamptz IS NULL OR ts <= sqlc.narg('to_ts'))
  AND (sqlc.narg('before_id')::bigint IS NULL OR id < sqlc.narg('before_id'))
ORDER BY id DESC
LIMIT sqlc.arg('lim');

-- name: ListEventsAfter :many
SELECT id, ts, type, entity_id, severity, source, data, correlation_id
FROM events WHERE id > $1 ORDER BY id ASC LIMIT $2;