-- name: IsUserPending :one
SELECT 
    CASE WHEN status = 'PENDING' THEN true ELSE false END AS is_pending
FROM users
WHERE user_name = $1
LIMIT 1;

-- name: IsUserNameUnique :one
SELECT 
    CASE WHEN COUNT(*) = 0 THEN true ELSE false END AS is_unique
FROM users
WHERE user_name = $1;


-- name: CreateUser :one
INSERT INTO users (
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    password,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    preferred_language,
    updated_at
)
VALUES (
    $1,  -- first_name
    $2,  -- last_name
    $3,  -- user_name
    $4,  -- email
    $5,  -- phone_number
    $6,  -- role
    $7,  -- password (BYTEA)
    $8,  -- age
    $9,  -- education_level
    $10, -- country
    $11, -- region
    $12, -- email_verified
    $13, -- phone_verified
    $14, -- status (PENDING | ACTIVE)
    $15, -- profile_completed
    $16, -- preferred_language
    CURRENT_TIMESTAMP
)
RETURNING
    id,
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    preferred_language,
    created_at,
    updated_at;

-- name: GetUserByID :one
SELECT *
FROM users
WHERE id = $1;

-- name: GetAllUsers :many
SELECT
    COUNT(*) OVER () AS total_count,
    id,
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    preferred_language,
    created_at,
    updated_at
FROM users
WHERE (
        role = $1 OR $1 IS NULL
    )
  AND (
        first_name ILIKE '%' || sqlc.narg('query') || '%'
     OR last_name  ILIKE '%' || sqlc.narg('query') || '%'
     OR phone_number ILIKE '%' || sqlc.narg('query') || '%'
     OR email ILIKE '%' || sqlc.narg('query') || '%'
     OR sqlc.narg('query') IS NULL
    )
  AND (
        created_at >= sqlc.narg('created_after')
        OR sqlc.narg('created_after') IS NULL
    )
  AND (
        created_at <= sqlc.narg('created_before')
        OR sqlc.narg('created_before') IS NULL
    )
LIMIT sqlc.narg('limit')
OFFSET sqlc.narg('offset');

-- name: GetTotalUsers :one
SELECT COUNT(*)
FROM users
WHERE (role = $1 OR $1 IS NULL);

-- name: SearchUserByNameOrPhone :many
SELECT
    id,
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    created_at,
    updated_at
FROM users
WHERE (
        first_name ILIKE '%' || $1 || '%'
     OR last_name  ILIKE '%' || $1 || '%'
     OR phone_number ILIKE '%' || $1 || '%'
     OR email ILIKE '%' || $1 || '%'
    )
  AND (
        role = sqlc.narg('role')
        OR sqlc.narg('role') IS NULL
    );

-- name: UpdateUser :exec
UPDATE users
SET
    first_name = $1,
    last_name  = $2,
    status     = $3,
    updated_at = CURRENT_TIMESTAMP
WHERE id = $4;

-- name: DeleteUser :exec
DELETE FROM users
WHERE id = $1;

-- name: CheckPhoneEmailExist :one
SELECT
    EXISTS (
        SELECT 1
        FROM users u1
        WHERE u1.phone_number = $1
    ) AS phone_exists,
    EXISTS (
        SELECT 1
        FROM users u2
        WHERE u2.email = $2
    ) AS email_exists;

-- name: GetUserByUserName :one
SELECT
    id,
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    password,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    last_login,
    profile_picture_url,
    preferred_language,
    created_at,
    updated_at
FROM users
WHERE user_name = $1 AND $1 IS NOT NULL
LIMIT 1;

-- name: GetUserByEmailPhone :one
SELECT
    id,
    first_name,
    last_name,
    user_name,
    email,
    phone_number,
    role,
    password,
    age,
    education_level,
    country,
    region,
    email_verified,
    phone_verified,
    status,
    profile_completed,
    last_login,
    profile_picture_url,
    preferred_language,
    created_at,
    updated_at
FROM users
WHERE (email = $1 AND $1 IS NOT NULL)
     OR (phone_number = $2 AND $2 IS NOT NULL)
LIMIT 1;

-- name: UpdatePassword :exec
UPDATE users
SET
    password = $1,
    updated_at = CURRENT_TIMESTAMP
WHERE email = $2 OR phone_number = $3;

-- name: UpdateUserStatus :exec
UPDATE users
SET
    status = $1,
    updated_at = CURRENT_TIMESTAMP
WHERE id = $2;