CREATE EXTENSION IF NOT EXISTS postgis;

CREATE TABLE IF NOT EXISTS marine_features (
  id bigserial PRIMARY KEY,
  layer text NOT NULL CHECK (layer IN ('seamarks', 'bridges', 'locks', 'harbours', 'waterways', 'fairways')),
  source text NOT NULL DEFAULT 'manual',
  source_id text,
  name text,
  properties jsonb NOT NULL DEFAULT '{}'::jsonb,
  geom geometry(Geometry, 4326) NOT NULL,
  updated_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS marine_features_geom_idx ON marine_features USING gist (geom);
CREATE INDEX IF NOT EXISTS marine_features_layer_idx ON marine_features (layer);
CREATE INDEX IF NOT EXISTS marine_features_properties_idx ON marine_features USING gin (properties);
CREATE UNIQUE INDEX IF NOT EXISTS marine_features_source_layer_uidx
  ON marine_features (source, source_id, layer)
  WHERE source_id IS NOT NULL;

CREATE TABLE IF NOT EXISTS marine_enrichment_attempts (
  id bigserial PRIMARY KEY,
  layer text NOT NULL CHECK (layer IN ('locks', 'harbours')),
  original_source text NOT NULL,
  original_source_id text NOT NULL,
  provider text NOT NULL,
  query_fingerprint text NOT NULL,
  query text,
  status text NOT NULL CHECK (
    status IN (
      'success',
      'no_match',
      'ambiguous',
      'no_contacts',
      'fetch_failed',
      'provider_blocked',
      'invalid_candidate'
    )
  ),
  result_url text,
  details jsonb NOT NULL DEFAULT '{}'::jsonb,
  attempted_at timestamptz NOT NULL DEFAULT now(),
  retry_after timestamptz,
  UNIQUE (layer, original_source, original_source_id, provider, query_fingerprint)
);

CREATE INDEX IF NOT EXISTS marine_enrichment_attempts_retry_idx
  ON marine_enrichment_attempts (provider, retry_after);

CREATE TABLE IF NOT EXISTS marine_fairway_edges (
  id bigserial PRIMARY KEY,
  source text NOT NULL DEFAULT 'osm',
  source_id text,
  name text,
  min_depth_m numeric,
  properties jsonb NOT NULL DEFAULT '{}'::jsonb,
  geom geometry(LineString, 4326) NOT NULL,
  updated_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS marine_fairway_edges_geom_idx ON marine_fairway_edges USING gist (geom);
CREATE INDEX IF NOT EXISTS marine_fairway_edges_source_idx ON marine_fairway_edges (source, source_id);
CREATE UNIQUE INDEX IF NOT EXISTS marine_fairway_edges_source_uidx
  ON marine_fairway_edges (source, source_id)
  WHERE source_id IS NOT NULL;

CREATE OR REPLACE VIEW marine_features_mvt AS
SELECT id, layer, source, name, properties, geom
FROM marine_features;