zavrsni-rad-otel-app/backend/app/db/queries.py

from __future__ import annotations

AW_DAILY_SALES_QUERIES = [
    """
    SELECT
      CAST(d.FullDateAlternateKey AS date) AS sale_date,
      SUM(f.SalesAmount) AS revenue,
      SUM(f.TotalProductCost) AS cost,
      SUM(f.OrderQuantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales AS f
    INNER JOIN dbo.DimDate AS d ON d.DateKey = f.OrderDateKey
    GROUP BY CAST(d.FullDateAlternateKey AS date)
    ORDER BY sale_date;
    """,
    """
    SELECT
      CAST(OrderDate AS date) AS sale_date,
      SUM(SalesAmount) AS revenue,
      SUM(TotalProductCost) AS cost,
      SUM(OrderQuantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales
    GROUP BY CAST(OrderDate AS date)
    ORDER BY sale_date;
    """,
]

WWI_DAILY_SALES_QUERIES = [
    """
    SELECT
      CAST(i.InvoiceDate AS date) AS sale_date,
      SUM(il.ExtendedPrice) AS revenue,
      SUM(il.TaxAmount) AS cost,
      SUM(il.Quantity) AS quantity,
      COUNT_BIG(DISTINCT i.InvoiceID) AS orders
    FROM Sales.Invoices AS i
    INNER JOIN Sales.InvoiceLines AS il ON il.InvoiceID = i.InvoiceID
    GROUP BY CAST(i.InvoiceDate AS date)
    ORDER BY sale_date;
    """,
    """
    SELECT
      CAST(i.InvoiceDate AS date) AS sale_date,
      SUM(il.UnitPrice * il.Quantity) AS revenue,
      CAST(0 AS float) AS cost,
      SUM(il.Quantity) AS quantity,
      COUNT_BIG(DISTINCT i.InvoiceID) AS orders
    FROM Sales.Invoices AS i
    INNER JOIN Sales.InvoiceLines AS il ON il.InvoiceID = i.InvoiceID
    GROUP BY CAST(i.InvoiceDate AS date)
    ORDER BY sale_date;
    """,
]

AW_PRODUCT_PERFORMANCE_QUERIES = [
    """
    SELECT
      p.ProductAlternateKey AS product_id,
      p.EnglishProductName AS product_name,
      COALESCE(sc.EnglishProductSubcategoryName, 'Unknown') AS category_name,
      SUM(f.SalesAmount) AS revenue,
      SUM(f.TotalProductCost) AS cost,
      SUM(f.OrderQuantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales AS f
    INNER JOIN dbo.DimProduct AS p ON p.ProductKey = f.ProductKey
    LEFT JOIN dbo.DimProductSubcategory AS sc ON sc.ProductSubcategoryKey = p.ProductSubcategoryKey
    GROUP BY p.ProductAlternateKey, p.EnglishProductName, sc.EnglishProductSubcategoryName
    ORDER BY revenue DESC;
    """,
    """
    SELECT
      CAST(ProductKey AS nvarchar(100)) AS product_id,
      CAST(ProductKey AS nvarchar(100)) AS product_name,
      'Unknown' AS category_name,
      SUM(SalesAmount) AS revenue,
      SUM(TotalProductCost) AS cost,
      SUM(OrderQuantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales
    GROUP BY ProductKey
    ORDER BY revenue DESC;
    """,
]

WWI_PRODUCT_PERFORMANCE_QUERIES = [
    """
    SELECT
      CAST(s.StockItemID AS nvarchar(100)) AS product_id,
      s.StockItemName AS product_name,
      COALESCE(cg.StockGroupName, 'Unknown') AS category_name,
      SUM(il.ExtendedPrice) AS revenue,
      SUM(il.TaxAmount) AS cost,
      SUM(il.Quantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM Sales.InvoiceLines AS il
    INNER JOIN Warehouse.StockItems AS s ON s.StockItemID = il.StockItemID
    LEFT JOIN Warehouse.StockItemStockGroups AS sig ON sig.StockItemID = s.StockItemID
    LEFT JOIN Warehouse.StockGroups AS cg ON cg.StockGroupID = sig.StockGroupID
    GROUP BY s.StockItemID, s.StockItemName, cg.StockGroupName
    ORDER BY revenue DESC;
    """,
    """
    SELECT
      CAST(il.StockItemID AS nvarchar(100)) AS product_id,
      CAST(il.StockItemID AS nvarchar(100)) AS product_name,
      'Unknown' AS category_name,
      SUM(il.UnitPrice * il.Quantity) AS revenue,
      CAST(0 AS float) AS cost,
      SUM(il.Quantity) AS quantity,
      COUNT_BIG(*) AS orders
    FROM Sales.InvoiceLines AS il
    GROUP BY il.StockItemID
    ORDER BY revenue DESC;
    """,
]

AW_CUSTOMER_QUERIES = [
    """
    SELECT
      CAST(c.CustomerAlternateKey AS nvarchar(100)) AS customer_id,
      c.FirstName + ' ' + c.LastName AS customer_name,
      SUM(f.SalesAmount) AS revenue,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales AS f
    INNER JOIN dbo.DimCustomer AS c ON c.CustomerKey = f.CustomerKey
    GROUP BY c.CustomerAlternateKey, c.FirstName, c.LastName
    ORDER BY revenue DESC;
    """,
    """
    SELECT
      CAST(CustomerKey AS nvarchar(100)) AS customer_id,
      CAST(CustomerKey AS nvarchar(100)) AS customer_name,
      SUM(SalesAmount) AS revenue,
      COUNT_BIG(*) AS orders
    FROM dbo.FactInternetSales
    GROUP BY CustomerKey
    ORDER BY revenue DESC;
    """,
]

WWI_CUSTOMER_QUERIES = [
    """
    SELECT
      CAST(c.CustomerID AS nvarchar(100)) AS customer_id,
      c.CustomerName AS customer_name,
      SUM(il.ExtendedPrice) AS revenue,
      COUNT_BIG(DISTINCT i.InvoiceID) AS orders
    FROM Sales.Invoices AS i
    INNER JOIN Sales.InvoiceLines AS il ON il.InvoiceID = i.InvoiceID
    INNER JOIN Sales.Customers AS c ON c.CustomerID = i.CustomerID
    GROUP BY c.CustomerID, c.CustomerName
    ORDER BY revenue DESC;
    """,
    """
    SELECT
      CAST(i.CustomerID AS nvarchar(100)) AS customer_id,
      CAST(i.CustomerID AS nvarchar(100)) AS customer_name,
      SUM(il.UnitPrice * il.Quantity) AS revenue,
      COUNT_BIG(DISTINCT i.InvoiceID) AS orders
    FROM Sales.Invoices AS i
    INNER JOIN Sales.InvoiceLines AS il ON il.InvoiceID = i.InvoiceID
    GROUP BY i.CustomerID
    ORDER BY revenue DESC;
    """,
]