-- name: CreateQuestion :exec
INSERT INTO questions (id, author_id, title, body, city, hunt_date, hidden, created_at)
VALUES ($1, $2, $3, $4, $5, $6, 0, $7);

-- name: HideQuestion :exec
UPDATE questions
SET hidden = 1
WHERE id = $1;

-- name: ListHunt :many
SELECT q.id, q.author_id, u.name AS author_name, q.title, q.body, q.city, q.hunt_date, q.hidden, q.created_at,
       COALESCE(SUM(v.value), 0)::bigint AS score,
       CASE WHEN a.question_id IS NULL THEN 0 ELSE 1 END::bigint AS answered,
       COALESCE((
         SELECT votes.value FROM votes
         WHERE votes.user_id = sqlc.arg(viewer_id) AND votes.question_id = q.id
       ), 0)::bigint AS user_vote
FROM questions q
JOIN users u ON u.id = q.author_id
LEFT JOIN votes v ON v.question_id = q.id
LEFT JOIN answers a ON a.question_id = q.id
WHERE q.hunt_date = sqlc.arg(hunt_date) AND q.hidden = 0
GROUP BY q.id, q.author_id, u.name, q.title, q.body, q.city, q.hunt_date, q.hidden, q.created_at, a.question_id
ORDER BY score DESC, q.created_at ASC;

-- name: GetQuestion :one
SELECT q.id, q.author_id, u.name AS author_name, q.title, q.body, q.city, q.hunt_date, q.hidden, q.created_at,
       COALESCE((SELECT SUM(votes.value) FROM votes WHERE votes.question_id = q.id), 0)::bigint AS score,
       CASE WHEN a.question_id IS NULL THEN 0 ELSE 1 END::bigint AS answered,
       COALESCE((
         SELECT votes.value FROM votes
         WHERE votes.user_id = sqlc.arg(viewer_id) AND votes.question_id = q.id
       ), 0)::bigint AS user_vote
FROM questions q
JOIN users u ON u.id = q.author_id
LEFT JOIN answers a ON a.question_id = q.id
WHERE q.id = sqlc.arg(id);

-- name: ListQuestionsByAuthor :many
SELECT q.id, q.author_id, u.name AS author_name, q.title, q.body, q.city, q.hunt_date, q.hidden, q.created_at,
       COALESCE((SELECT SUM(votes.value) FROM votes WHERE votes.question_id = q.id), 0)::bigint AS score,
       CASE WHEN a.question_id IS NULL THEN 0 ELSE 1 END::bigint AS answered,
       0::bigint AS user_vote
FROM questions q
JOIN users u ON u.id = q.author_id
LEFT JOIN answers a ON a.question_id = q.id
WHERE q.author_id = sqlc.arg(author_id) AND q.hidden = 0
ORDER BY q.created_at DESC;

-- name: ListQuestionsAnsweredBy :many
SELECT q.id, q.author_id, u.name AS author_name, q.title, q.body, q.city, q.hunt_date, q.hidden, q.created_at,
       COALESCE((SELECT SUM(votes.value) FROM votes WHERE votes.question_id = q.id), 0)::bigint AS score,
       1::bigint AS answered,
       0::bigint AS user_vote
FROM answers ans
JOIN questions q ON q.id = ans.question_id
JOIN users u ON u.id = q.author_id
WHERE ans.author_id = sqlc.arg(admin_id) AND q.hidden = 0
ORDER BY ans.updated_at DESC;