-- Widget kinds are intentionally data-driven. Removing enum-like checks means
-- future widget types do not require a table rewrite merely to exist.
ALTER TABLE osint.widgets DROP CONSTRAINT IF EXISTS widgets_widget_type_check;
ALTER TABLE osint.playthrough_widgets DROP CONSTRAINT IF EXISTS playthrough_widgets_widget_type_check;

ALTER TABLE osint.widgets ADD COLUMN published_at TIMESTAMPTZ;

UPDATE osint.widgets
SET published_at = event_date::timestamp AT TIME ZONE 'UTC'
WHERE widget_type = 'document' AND event_date IS NOT NULL;

CREATE TABLE osint.widget_relations (
  id TEXT PRIMARY KEY,
  level_id TEXT NOT NULL REFERENCES osint.levels(id) ON DELETE CASCADE,
  from_widget_id TEXT NOT NULL REFERENCES osint.widgets(id) ON DELETE CASCADE,
  to_widget_id TEXT NOT NULL REFERENCES osint.widgets(id) ON DELETE CASCADE,
  relation_type TEXT NOT NULL,
  sort_order INTEGER NOT NULL DEFAULT 0,
  config JSONB NOT NULL DEFAULT '{}'::jsonb,
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  UNIQUE (from_widget_id, to_widget_id, relation_type)
);

CREATE INDEX widget_relations_from_idx ON osint.widget_relations(level_id, from_widget_id, relation_type);
CREATE INDEX widget_relations_to_idx ON osint.widget_relations(level_id, to_widget_id, relation_type);

CREATE TABLE osint.playthrough_widget_relations (
  id TEXT PRIMARY KEY,
  playthrough_id TEXT NOT NULL REFERENCES osint.playthroughs(id) ON DELETE CASCADE,
  from_widget_id TEXT NOT NULL,
  to_widget_id TEXT NOT NULL,
  relation_type TEXT NOT NULL,
  sort_order INTEGER NOT NULL DEFAULT 0,
  config JSONB NOT NULL DEFAULT '{}'::jsonb,
  UNIQUE (playthrough_id, from_widget_id, to_widget_id, relation_type)
);

UPDATE osint.widgets SET widget_type = 'folder' WHERE widget_type = 'evidence';
UPDATE osint.playthrough_widgets SET widget_type = 'folder' WHERE widget_type = 'evidence';

INSERT INTO osint.widget_relations (id, level_id, from_widget_id, to_widget_id, relation_type)
SELECT 'contains:' || id || ':' || source_widget_id, level_id, id, source_widget_id, 'contains'
FROM osint.widgets
WHERE widget_type = 'folder' AND source_widget_id IS NOT NULL
ON CONFLICT (from_widget_id, to_widget_id, relation_type) DO NOTHING;

INSERT INTO osint.playthrough_widget_relations
  (id, playthrough_id, from_widget_id, to_widget_id, relation_type)
SELECT 'contains:' || playthrough_id || ':' || id || ':' || source_widget_id,
       playthrough_id, id, source_widget_id, 'contains'
FROM osint.playthrough_widgets
WHERE widget_type = 'folder' AND source_widget_id IS NOT NULL
ON CONFLICT (playthrough_id, from_widget_id, to_widget_id, relation_type) DO NOTHING;

COMMENT ON COLUMN osint.widgets.published_at IS 'Publication/creation time of a source document; chronology belongs to documents, not folders';
COMMENT ON TABLE osint.widget_relations IS 'Generic authored widget graph; contains is the first relation type';