-- +goose Up
CREATE EXTENSION IF NOT EXISTS pg_trgm;
CREATE EXTENSION IF NOT EXISTS unaccent;

CREATE OR REPLACE FUNCTION immutable_unaccent(regdictionary, TEXT)
    RETURNS TEXT
    LANGUAGE c
    IMMUTABLE PARALLEL SAFE STRICT AS
'$libdir/unaccent',
'unaccent_dict';

CREATE OR REPLACE FUNCTION f_unaccent(TEXT) RETURNS TEXT
    immutable
    strict
    parallel safe
    language sql
as
$$
SELECT public.immutable_unaccent(regdictionary 'public.unaccent', $1)
$$;

CREATE INDEX IF NOT EXISTS players_unaccent_display_name_trgm_idx
    ON players USING gin (f_unaccent(display_name::text) gin_trgm_ops);

CREATE INDEX IF NOT EXISTS teams_unaccent_display_name_trgm_idx
    ON teams USING gin (f_unaccent(display_name::text) gin_trgm_ops);

-- +goose Down
DROP INDEX IF EXISTS players_unaccent_display_name_trgm_idx;
DROP INDEX IF EXISTS teams_unaccent_display_name_trgm_idx;
DROP FUNCTION IF EXISTS f_unaccent;
DROP FUNCTION IF EXISTS immutable_unaccent;
DROP EXTENSION IF EXISTS unaccent;
DROP EXTENSION IF EXISTS pg_trgm;