CREATE TABLE IF NOT EXISTS post_import_jobs (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  requested_by UUID REFERENCES users(id) ON DELETE SET NULL,
  requested_email TEXT NOT NULL DEFAULT '',
  original_file_name TEXT NOT NULL DEFAULT '',
  zip_file_path TEXT NOT NULL DEFAULT '',
  status TEXT NOT NULL DEFAULT 'queued',
  total_count INTEGER NOT NULL DEFAULT 0,
  processed_count INTEGER NOT NULL DEFAULT 0,
  imported_count INTEGER NOT NULL DEFAULT 0,
  skipped_count INTEGER NOT NULL DEFAULT 0,
  failed_count INTEGER NOT NULL DEFAULT 0,
  asset_count INTEGER NOT NULL DEFAULT 0,
  reused_asset_count INTEGER NOT NULL DEFAULT 0,
  warning_count INTEGER NOT NULL DEFAULT 0,
  message TEXT NOT NULL DEFAULT '',
  error_detail TEXT NOT NULL DEFAULT '',
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  started_at TIMESTAMPTZ,
  completed_at TIMESTAMPTZ,
  CONSTRAINT post_import_jobs_status_check CHECK (status IN ('queued', 'processing', 'ready', 'failed'))
);

CREATE INDEX IF NOT EXISTS post_import_jobs_status_created_at_idx
  ON post_import_jobs (status, created_at DESC);

CREATE TABLE IF NOT EXISTS post_import_items (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  job_id UUID NOT NULL REFERENCES post_import_jobs(id) ON DELETE CASCADE,
  item_index INTEGER NOT NULL,
  title TEXT NOT NULL DEFAULT '',
  slug TEXT NOT NULL DEFAULT '',
  source_path TEXT NOT NULL DEFAULT '',
  status TEXT NOT NULL DEFAULT 'pending',
  progress INTEGER NOT NULL DEFAULT 0,
  message TEXT NOT NULL DEFAULT '',
  post_id UUID REFERENCES posts(id) ON DELETE SET NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  completed_at TIMESTAMPTZ,
  CONSTRAINT post_import_items_status_check CHECK (status IN ('pending', 'processing', 'ready', 'skipped', 'failed')),
  CONSTRAINT post_import_items_progress_check CHECK (progress >= 0 AND progress <= 100),
  CONSTRAINT post_import_items_job_index_unique UNIQUE (job_id, item_index)
);

CREATE INDEX IF NOT EXISTS post_import_items_job_id_item_index_idx
  ON post_import_items (job_id, item_index ASC);