export const ARTICLE_LIST_JOINS = `
LEFT JOIN articletext at
    ON at.article_id = a.id AND at.language_id = @languageId
LEFT JOIN price pr
    ON pr.article_id = a.id
    AND pr.customergroup_id = @posCustomerGroupId
    AND pr.minmultiplier = 1
LEFT JOIN tax t ON t.id = pr.tax_id
OUTER APPLY (
    SELECT TOP 1 ap.pic_id
    FROM articlepic ap
    WHERE ap.article_id = a.id
    ORDER BY ap.sort ASC, ap.id ASC
) first_pic
LEFT JOIN pic ON pic.id = first_pic.pic_id
LEFT JOIN article father ON father.id = a.fatherarticle_id
`;

export const ARTICLE_LIST_COLUMNS = `
    a.id,
    a.sku,
    at.name,
    at.slug,
    pr.net,
    t.rate AS taxRate,
    CASE
        WHEN a.optionslist_id IS NOT NULL THEN (
            SELECT COUNT(*)
            FROM optionslistarticle ola
            WHERE ola.optionslist_id = a.optionslist_id
        )
        ELSE 0
    END AS optionsCount,
    CASE
        WHEN a.articlelist_id IS NOT NULL THEN (
            SELECT COUNT(*)
            FROM articlelistarticle ala
            WHERE ala.articlelist_id = a.articlelist_id
        )
        ELSE 0
    END AS articleListCount,
    (
        SELECT COUNT(*)
        FROM article child
        WHERE child.fatherarticle_id = a.id
    ) AS childCount,
    a.fatherarticle_id AS fatherArticleId,
    father.sku AS fatherSku,
    pic.hash AS fullHash,
    pic.thumbw AS thumbW,
    pic.thumbh AS thumbH,
    pic.thumbhash AS thumbHash
`;

export const GET_CATEGORY_ID_BY_SKU = `
SELECT TOP 1 ca.category_id AS categoryId, a.id AS articleId
FROM article a
INNER JOIN categoryarticle ca ON ca.article_id = a.id
WHERE a.sku = @sku AND (@companyId IS NULL OR a.company_id = @companyId)
`;

/** Resolve an article id by sku (used to wire father/child compound links). */
export const GET_ID_BY_SKU = `
SELECT TOP 1 id AS articleId
FROM article
WHERE sku = @sku AND (@companyId IS NULL OR company_id = @companyId)
`;

/** True if an EAN is already assigned to any article (duplicate guard). */
export const EAN_EXISTS = `
SELECT TOP 1 1 AS used
FROM articleean
WHERE ean = @ean
`;

/** Link an article to its father article and mark the father. */
export const UPDATE_FATHER_BY_SKU = `
UPDATE article
SET fatherarticle_id = @fatherArticleId,
    fathersort = COALESCE(@fathersort, 0)
WHERE sku = @sku AND (@companyId IS NULL OR company_id = @companyId)
`;

export const SET_IS_FATHER = `
UPDATE article
SET is_father = 1
WHERE id = @articleId
`;

export const SET_FATHER_SORT = `
UPDATE article
SET fathersort = @fathersort
WHERE id = @articleId AND fatherarticle_id = @fatherArticleId
`;

/** SKU → article/category + company auth in one round-trip. */
export const RESOLVE_ARTICLE_ACCESS_BY_SKU = `
SELECT TOP 1
    a.id AS articleId,
    ca.category_id AS categoryId,
    co.root_category_id AS rootCategoryId,
    co.id AS companyId,
    co.default_language_id AS languageId,
    co.poscustomergroup_id AS posCustomerGroupId,
    cu.id AS companyuserId
FROM article a
INNER JOIN company co ON co.id = a.company_id
INNER JOIN google_auth ga ON ga.id = @googleAuthId
INNER JOIN companyuser cu
    ON cu.company_id = a.company_id AND cu.google_auth_id = @googleAuthId
LEFT JOIN categoryarticle ca ON ca.article_id = a.id
WHERE a.sku = @sku
  AND (ga.selected_company IS NULL OR a.company_id = ga.selected_company)
`;

export const UPDATE_WEIGHT = `
UPDATE article
SET weight = @weight
WHERE id = @articleId
`;

export const UPDATE_BRAND = `
UPDATE article
SET brand_id = @brandId
WHERE id = @articleId
`;

export const UPDATE_UNIT = `
UPDATE article
SET unit_id = @unitId
WHERE id = @articleId
`;

export const UPDATE_UNITAMOUNT = `
UPDATE article
SET unitamount = @unitamount
WHERE id = @articleId
`;

export const UPDATE_UNIT_AND_AMOUNT = `
UPDATE article
SET unit_id = @unitId, unitamount = @unitamount
WHERE id = @articleId
`;

export const CREATE = `
INSERT INTO article (company_id, sku, unit_id, unitamount, weight)
OUTPUT INSERTED.id
VALUES (@companyId, @sku, @unitId, @unitamount, @weight)
`;

export const DELETE_EANS_BY_ARTICLE = `
DELETE FROM articleean
WHERE article_id = @articleId
`;

export const ADD_EAN = `
INSERT INTO articleean (article_id, ean)
VALUES (@articleId, @ean)
`;

export const DELETE_CATEGORIES_BY_ARTICLE = `
DELETE FROM categoryarticle
WHERE article_id = @articleId
`;

export const ADD_CATEGORY = `
INSERT INTO categoryarticle (category_id, article_id)
VALUES (@categoryId, @articleId)
`;

export const GET_BRAND_BY_COMPANY_AND_ID = `
SELECT id
FROM brand
WHERE id = @brandId AND company_id = @companyId
`;

/**
 * Company-wide article search index.
 * Returns one row per article with id, sku, name, and all eans as a JSON array.
 * Used by the client for local search / autocomplete.
 */
export const SEARCH_ARTICLES = `
;WITH category_tree AS (
    SELECT id
    FROM category
    WHERE id = @rootCategoryId

    UNION ALL

    SELECT c.id
    FROM category c
    INNER JOIN category_tree ct ON c.parent_id = ct.id
)
SELECT
    a.id,
    a.sku,
    at.name,
    (
        SELECT ae.ean
        FROM articleean ae
        WHERE ae.article_id = a.id
        ORDER BY ae.ean
        FOR JSON PATH
    ) AS eansJson,
    (
        SELECT ca2.category_id
        FROM categoryarticle ca2
        WHERE ca2.article_id = a.id
        ORDER BY ca2.category_id
        FOR JSON PATH
    ) AS categoryIdsJson
FROM article a
LEFT JOIN articletext at
    ON at.article_id = a.id AND at.language_id = @languageId
WHERE EXISTS (
    SELECT 1
    FROM categoryarticle ca
    INNER JOIN category_tree ct ON ct.id = ca.category_id
    WHERE ca.article_id = a.id
)
ORDER BY a.id
`;

/**
 * Flat category tree (id, parentId, name) for a root category, used to resolve
 * breadcrumbs for the article export.
 */
export const GET_CATEGORY_TREE_FLAT = `
;WITH tree AS (
    SELECT id, parent_id, sort
    FROM category
    WHERE id = @rootId

    UNION ALL

    SELECT c.id, c.parent_id, c.sort
    FROM category c
    INNER JOIN tree t ON c.parent_id = t.id
)
SELECT
    t.id,
    t.parent_id AS parentId,
    ct.name
FROM tree t
LEFT JOIN categorytext ct
    ON ct.category_id = t.id AND ct.language_id = @languageId
`;

/**
 * Export rows for every article in a category subtree (root = @categoryId).
 * One row per article with the columns used by the export CSV, including the
 * POS price (minmultiplier = 1 for the company poscustomergroup), brand, unit,
 * eans, categoryIds and all photo hashes as JSON arrays.
 */
export const GET_ARTICLE_EXPORT = `
;WITH category_tree AS (
    SELECT id
    FROM category
    WHERE id = @categoryId

    UNION ALL

    SELECT c.id
    FROM category c
    INNER JOIN category_tree ct ON c.parent_id = ct.id
)
SELECT
    a.id,
    a.sku,
    at.name,
    at.slug,
    u.si AS unitSi,
    ut.symbol AS unitSymbol,
    a.unitamount,
    b.name AS brandName,
    b.name AS brandName,
    pr.net AS net,
    t.rate AS taxRate,
    (
        SELECT ae.ean
        FROM articleean ae
        WHERE ae.article_id = a.id
        ORDER BY ae.ean
        FOR JSON PATH
    ) AS eansJson,
    (
        SELECT ca2.category_id
        FROM categoryarticle ca2
        WHERE ca2.article_id = a.id
        ORDER BY ca2.category_id
        FOR JSON PATH
    ) AS categoryIdsJson,
    (
        SELECT p.hash
        FROM articlepic ap
        INNER JOIN pic p ON p.id = ap.pic_id
        WHERE ap.article_id = a.id
        ORDER BY ap.sort ASC, ap.id ASC
        FOR JSON PATH
    ) AS fullHashesJson
FROM article a
INNER JOIN categoryarticle ca ON ca.article_id = a.id
INNER JOIN category_tree ct ON ct.id = ca.category_id
LEFT JOIN articletext at
    ON at.article_id = a.id AND at.language_id = @languageId
LEFT JOIN unit u ON u.id = a.unit_id
LEFT JOIN unittext ut
    ON ut.unit_id = u.id AND ut.language_id = @languageId
LEFT JOIN brand b ON b.id = a.brand_id
LEFT JOIN price pr
    ON pr.article_id = a.id
    AND pr.customergroup_id = @posCustomerGroupId
    AND pr.minmultiplier = 1
LEFT JOIN tax t ON t.id = pr.tax_id
ORDER BY a.id
`;

/**
 * Single-query replacement for resolveArticleBySku + queryBySku.
 * Resolves SKU → article + company + auth, then loads full article detail
 * including categories, photos, eans, and prices via FOR JSON sub-queries.
 * Returns one row with articleJson, or empty if not found/unauthorized.
 */
export const GET_ARTICLE_BY_SKU_FULL = `
;WITH auth AS (
    SELECT TOP 1
        a.id AS articleId,
        ca.category_id AS categoryId,
        co.root_category_id AS rootCategoryId,
        co.id AS companyId,
        co.default_language_id AS languageId,
        co.poscustomergroup_id AS posCustomerGroupId,
        cu.id AS companyuserId
    FROM article a
    INNER JOIN company co ON co.id = a.company_id
    INNER JOIN google_auth ga ON ga.id = @googleAuthId
    INNER JOIN companyuser cu
        ON cu.company_id = a.company_id AND cu.google_auth_id = @googleAuthId
    LEFT JOIN categoryarticle ca ON ca.article_id = a.id
    WHERE a.sku = @sku
      AND (ga.selected_company IS NULL OR a.company_id = ga.selected_company)
)
SELECT
    auth.articleId,
    auth.categoryId,
    auth.rootCategoryId,
    auth.companyId,
    auth.languageId,
    auth.posCustomerGroupId,
    auth.companyuserId,
    (
        SELECT
            a.id,
            a.sku,
            at.name,
            at.slug,
            a.unitamount,
            a.weight,
            u.si            AS unitSi,
            u.basesi         AS unitBasesi,
            u.basesifactor   AS unitBasesifactor,
            ut.symbol        AS unitSymbol,
            ut.name          AS unitName,
            b.name           AS brandName,
            bp.thumbw        AS brandThumbW,
            bp.thumbh        AS brandThumbH,
            bp.thumbhash     AS brandThumbHash,
            (
                SELECT COUNT(*)
                FROM optionslistarticle ola
                WHERE ola.optionslist_id = a.optionslist_id
            ) AS optionsCount,
            (
                SELECT COUNT(*)
                FROM articlelistarticle ala
                WHERE ala.articlelist_id = a.articlelist_id
            ) AS articleListCount,
            (
                SELECT COUNT(*)
                FROM article child
                WHERE child.fatherarticle_id = a.id
            ) AS childCount,
            a.fatherarticle_id AS fatherArticleId,
            fa.sku AS fatherSku,
            (
                SELECT ca2.category_id
                FROM categoryarticle ca2
                WHERE ca2.article_id = a.id
                ORDER BY ca2.category_id
                FOR JSON PATH
            ) AS categoryIdsJson,
            (
                SELECT
                    ap.sort,
                    p.hash     AS fullHash,
                    p.w        AS fullW,
                    p.h        AS fullH,
                    p.size     AS fullSize,
                    p.thumbw   AS thumbW,
                    p.thumbh   AS thumbH,
                    p.thumbhash AS thumbHash
                FROM articlepic ap
                INNER JOIN pic p ON p.id = ap.pic_id
                WHERE ap.article_id = a.id
                ORDER BY ap.sort ASC, ap.id ASC
                FOR JSON PATH
            ) AS photosJson,
            (
                SELECT ae.ean
                FROM articleean ae
                WHERE ae.article_id = a.id
                ORDER BY ae.ean
                FOR JSON PATH
            ) AS eansJson,
            (
                SELECT
                    pr.minmultiplier,
                    pr.net,
                    t.rate AS taxRate,
                    pr.customergroup_id AS customergroupId
                FROM price pr
                INNER JOIN tax t ON t.id = pr.tax_id
                WHERE pr.article_id = a.id
                ORDER BY pr.customergroup_id, pr.minmultiplier
                FOR JSON PATH
            ) AS pricesJson,
            (
                SELECT
                    asup.id,
                    asup.article_id AS articleId,
                    asup.entity_id  AS entityId,
                    e.name          AS supplierName,
                    asup.sku,
                    asup.pu,
                    asup.stock,
                    asup.sort,
                    asup.price_id   AS priceId,
                    p.net           AS [price.net],
                    p.tax_id        AS [price.taxId],
                    t.rate          AS [price.taxRate]
                FROM articlesupplier asup
                INNER JOIN entity e ON e.id = asup.entity_id
                LEFT JOIN price p ON p.id = asup.price_id
                LEFT JOIN tax t ON t.id = p.tax_id
                WHERE asup.article_id = a.id
                ORDER BY asup.sort ASC, asup.id ASC
                FOR JSON PATH
            ) AS suppliersJson,
            (
                SELECT
                    w.id,
                    w.name,
                    COALESCE(stock_calc.stock, 0) AS stock
                FROM warehouse w
                LEFT JOIN (
                    SELECT l.warehouse_id, SUM(l.amount) AS stock
                    FROM ledger l
                    INNER JOIN manifestarticle ma ON ma.id = l.manifestarticle_id
                    INNER JOIN manifest m ON m.id = ma.manifest_id
                    WHERE m.company_id = a.company_id
                      AND (
                          ma.sku = a.sku
                          OR ma.sku IN (SELECT asup.sku FROM articlesupplier asup WHERE asup.article_id = a.id)
                      )
                    GROUP BY l.warehouse_id
                ) stock_calc ON stock_calc.warehouse_id = w.id
                WHERE w.company_id = a.company_id
                ORDER BY w.name ASC
                FOR JSON PATH
            ) AS warehousesJson
        FROM article a
        LEFT JOIN articletext at
            ON at.article_id = a.id AND at.language_id = auth.languageId
        LEFT JOIN unit u ON u.id = a.unit_id
        LEFT JOIN unittext ut
            ON ut.unit_id = u.id AND ut.language_id = auth.languageId
        LEFT JOIN brand b ON b.id = a.brand_id
        OUTER APPLY (
            SELECT TOP 1 bp2.pic_id
            FROM brandpic bp2
            WHERE bp2.brand_id = b.id
            ORDER BY bp2.sort ASC, bp2.id ASC
        ) first_brand_pic
        LEFT JOIN pic bp ON bp.id = first_brand_pic.pic_id
        LEFT JOIN article fa ON fa.id = a.fatherarticle_id
        WHERE a.id = auth.articleId
        FOR JSON PATH, WITHOUT_ARRAY_WRAPPER
    ) AS articleJson
FROM auth
`;