Feature 02 task 4: sqlc configuration and core queries (#13)

Co-authored-by: dev_agent <dev_agent@cubecraftlabs.com>
Co-committed-by: dev_agent <dev_agent@cubecraftlabs.com>

migrations/queries/recipes.sql

@@ -0,0 +1,65 @@
+-- name: UpsertRecipe :one
+-- A recipe is keyed by source_url: re-fetching the same URL updates the
+-- existing row and keeps its id and created_at, which the returned row
+-- carries. Replace its ingredients and steps in the same transaction with
+-- DeleteRecipeIngredients/DeleteRecipeSteps then the Create queries.
+INSERT INTO recipes (
+	id, source_url, site_name, title, total_minutes, prep_minutes,
+	cook_minutes, yield, raw_jsonld, fetched_at, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?,
+	?, ?, ?, ?, ?, ?
+)
+ON CONFLICT (source_url) DO UPDATE SET
+	site_name = excluded.site_name,
+	title = excluded.title,
+	total_minutes = excluded.total_minutes,
+	prep_minutes = excluded.prep_minutes,
+	cook_minutes = excluded.cook_minutes,
+	yield = excluded.yield,
+	raw_jsonld = excluded.raw_jsonld,
+	fetched_at = excluded.fetched_at,
+	updated_at = excluded.updated_at
+RETURNING *;
+
+-- name: GetRecipe :one
+SELECT * FROM recipes
+WHERE id = ?;
+
+-- name: GetRecipeBySourceURL :one
+SELECT * FROM recipes
+WHERE source_url = ?;
+
+-- name: CreateRecipeIngredient :exec
+INSERT INTO recipe_ingredients (
+	id, recipe_id, position, raw_text, name, qty, unit, note,
+	created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?, ?, ?,
+	?, ?
+);
+
+-- name: ListRecipeIngredients :many
+SELECT * FROM recipe_ingredients
+WHERE recipe_id = ?
+ORDER BY position, id;
+
+-- name: DeleteRecipeIngredients :exec
+DELETE FROM recipe_ingredients
+WHERE recipe_id = ?;
+
+-- name: CreateRecipeStep :exec
+INSERT INTO recipe_steps (
+	id, recipe_id, position, text, created_at, updated_at
+) VALUES (
+	?, ?, ?, ?, ?, ?
+);
+
+-- name: ListRecipeSteps :many
+SELECT * FROM recipe_steps
+WHERE recipe_id = ?
+ORDER BY position, id;
+
+-- name: DeleteRecipeSteps :exec
+DELETE FROM recipe_steps
+WHERE recipe_id = ?;