-- name: CountArticlesByTenantAndBrand :one
SELECT COUNT(*) FROM articles
WHERE tenant_id = sqlc.arg(tenant_id) AND brand_id = sqlc.arg(brand_id) AND deleted_at IS NULL;

-- name: CountPublishedArticlesByTenantAndBrand :one
SELECT COUNT(*) FROM articles
WHERE tenant_id = sqlc.arg(tenant_id) AND brand_id = sqlc.arg(brand_id) AND publish_status = 'success' AND deleted_at IS NULL;

-- name: CountBrandsByTenant :one
SELECT COUNT(*) FROM brands
WHERE tenant_id = sqlc.arg(tenant_id) AND deleted_at IS NULL;

-- name: GetRecentArticlesByBrand :many
SELECT a.id, a.brand_id, a.generate_status, a.publish_status, a.source_type, a.created_at,
       av.title, av.markdown_content, av.word_count, av.source_label,
       t.template_name,
       COALESCE(
         NULLIF(gt.input_params_json ->> 'generation_mode', ''),
         CASE WHEN a.source_type = 'custom_generation' THEN 'instant'::TEXT ELSE NULL::TEXT END
       ) AS generation_mode
FROM articles a
LEFT JOIN article_versions av ON av.id = a.current_version_id
LEFT JOIN article_templates t ON t.id = a.template_id
LEFT JOIN LATERAL (
    SELECT input_params_json
    FROM generation_tasks
    WHERE article_id = a.id
    ORDER BY created_at DESC
    LIMIT 1
) gt ON true
WHERE a.tenant_id = sqlc.arg(tenant_id) AND a.brand_id = sqlc.arg(brand_id) AND a.deleted_at IS NULL
ORDER BY a.created_at DESC
LIMIT 10;

-- name: GetQuotaSummary :one
SELECT COALESCE(
    (SELECT balance_after FROM tenant_quota_ledgers
     WHERE tenant_id = sqlc.arg(tenant_id) AND quota_type = 'article_generation'
     ORDER BY created_at DESC LIMIT 1), 0
)::INT AS balance;

-- name: GetActivePlanForTenant :one
SELECT p.plan_code, p.name AS plan_name, p.quota_policy_json,
       s.start_at, s.end_at
FROM tenant_plan_subscriptions s
JOIN plans p ON p.id = s.plan_id
WHERE s.tenant_id = sqlc.arg(tenant_id) AND s.status = 'active' AND s.deleted_at IS NULL
  AND s.end_at > NOW()
LIMIT 1;

-- name: ListKolCardsForTenant :many
SELECT sp.id AS subscription_prompt_id, sp.granted_at,
       GREATEST(p.updated_at, k.updated_at)::timestamptz AS updated_at,
       p.name AS prompt_name, p.platform_hint,
       k.name AS package_name, k.cover_url AS package_cover,
       pf.display_name AS kol_display_name
FROM kol_subscription_prompts sp
JOIN kol_prompts p ON p.id = sp.prompt_id AND p.deleted_at IS NULL
JOIN kol_packages k ON k.id = sp.package_id AND k.deleted_at IS NULL
JOIN kol_profiles pf ON pf.id = k.kol_profile_id
WHERE sp.tenant_id = sqlc.arg(tenant_id)::bigint
  AND sp.status = 'active'
  AND p.status = 'active'
  AND p.published_revision_no IS NOT NULL
ORDER BY GREATEST(p.updated_at, k.updated_at)::timestamptz DESC, sp.granted_at DESC
LIMIT 8;