mitai-jinkendo/backend/migrations/063_fddb_recipes.sql

-- Migration 063: FDDB-Listen/Rezepte + Verknüpfung an nutrition_items

CREATE TABLE IF NOT EXISTS food_recipes (
    id                  UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    profile_id          UUID NOT NULL REFERENCES profiles(id) ON DELETE CASCADE,
    name_raw            VARCHAR(500) NOT NULL,
    name_normalized     VARCHAR(500) NOT NULL,
    portions            NUMERIC(8,2) NOT NULL DEFAULT 1,
    description         TEXT,
    source              VARCHAR(20) NOT NULL DEFAULT 'fddb_list',
    created_at          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at          TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    CONSTRAINT uq_food_recipe_profile_name UNIQUE (profile_id, name_normalized)
);

CREATE INDEX IF NOT EXISTS idx_food_recipes_profile ON food_recipes (profile_id);

CREATE TABLE IF NOT EXISTS food_recipe_ingredients (
    id                      UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    recipe_id               UUID NOT NULL REFERENCES food_recipes(id) ON DELETE CASCADE,
    source_name_raw         VARCHAR(500) NOT NULL,
    source_name_normalized  VARCHAR(500) NOT NULL,
    quantity_raw            VARCHAR(80),
    quantity_g              NUMERIC(10,3),
    sort_order              INT NOT NULL DEFAULT 0
);

CREATE INDEX IF NOT EXISTS idx_food_recipe_ing_recipe ON food_recipe_ingredients (recipe_id);
CREATE INDEX IF NOT EXISTS idx_food_recipe_ing_norm ON food_recipe_ingredients (source_name_normalized);

ALTER TABLE nutrition_items
    ADD COLUMN IF NOT EXISTS recipe_id UUID REFERENCES food_recipes(id) ON DELETE SET NULL;

CREATE INDEX IF NOT EXISTS idx_nutrition_items_recipe
    ON nutrition_items (recipe_id)
    WHERE recipe_id IS NOT NULL;

COMMENT ON TABLE food_recipes IS 'FDDB-Listen/Rezepte; Tagebuchzeile kann statt Einzel-BLS auf ein Rezept zeigen';

DO $$
BEGIN
    RAISE NOTICE 'Migration 063: FDDB recipes + nutrition_items.recipe_id';
END $$;