adding mart model and defining the dimantion models

models/marts/core/dimensions/_dim_models.yml

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+version: 2
+
+models:
+  - name: dim_customers
+    description: Customer dimension with profile, contact, location, and segmentation attributes.
+    columns:
+      - name: customer_id
+        description: Unique customer identifier.
+        tests:
+          - unique
+          - not_null
+
+  - name: dim_employees
+    description: Employee dimension with profile, contact, employment, store, and compensation attributes.
+    columns:
+      - name: employee_id
+        description: Unique employee identifier.
+        tests:
+          - unique
+          - not_null
+
+  - name: dim_products
+    description: Product dimension with catalog, pricing, inventory status, supplier, and review summary attributes.
+    columns:
+      - name: product_id
+        description: Unique product identifier.
+        tests:
+          - unique
+          - not_null
+
+      - name: sku
+        description: Standardized product SKU.
+
+      - name: category
+        description: Standardized product category.
+
+  - name: dim_stores
+    description: Store dimension with profile, location, operations, and facility attributes.
+    columns:
+      - name: store_id
+        description: Unique store identifier.
+        tests:
+          - unique
+          - not_null
+
+      - name: region
+        description: Store operating region.
+
+      - name: is_active
+        description: Standardized active-store indicator.
+        tests:
+          - accepted_values:
+              arguments:
+                values: ['True', 'False', 'Unknown']
+
+  - name: dim_date
+    description: Calendar dimension built from dates observed across sales, returns, reviews, and inventory snapshots.
+    columns:
+      - name: date_day
+        description: Calendar date.
+        tests:
+          - unique
+          - not_null
+
+      - name: day_type
+        description: Weekday or weekend indicator.
+        tests:
+          - accepted_values:
+              arguments:
+                values: ['Weekday', 'Weekend']

models/marts/core/dimensions/dim_customers.sql

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+SELECT 
+    p.customer_id, 
+    TRIM(CONCAT(p.title, ' ', p.first_name, ' ', p.last_name)) as customer_name,
+    p.gender,
+    p.date_of_birth,
+    c.email,
+    c.phone,
+    l.address,
+    l.zip_code,
+    l.city,
+    l.region,
+    l.state,
+    l.state_abbr,
+    l.country,
+    s.company,
+    s.customer_segment,
+    c.preferred_channel,
+    s.is_active,
+    s.loyalty_points,
+    s.annual_income_usd,
+    s.account_created_date
+FROM {{ ref('int_customer_profile') }} as p 
+
+LEFT JOIN {{ ref('int_customers_contact') }} as c 
+    ON p.customer_id = c.customer_id 
+
+LEFT JOIN {{ ref('int_customer_location') }} as l
+    ON p.customer_id = l.customer_id
+
+LEFT JOIN {{ ref('int_customer_segmentation') }} as s  
+    ON s.customer_id = p.customer_id ;

models/marts/core/dimensions/dim_date.sql

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+WITH dates AS (
+    SELECT order_date AS date_day FROM {{ ref('int_transaction_fulfillment') }}
+    UNION
+    SELECT ship_date AS date_day FROM {{ ref('int_transaction_fulfillment') }}
+    UNION
+    SELECT delivery_date AS date_day FROM {{ ref('int_transaction_fulfillment') }}
+    UNION
+    SELECT return_date AS date_day FROM {{ ref('int_return_transaction') }}
+    UNION
+    SELECT review_date AS date_day FROM {{ ref('int_review_transaction') }}
+    UNION
+    SELECT snapshot_date AS date_day FROM {{ ref('int_inventory_product') }}
+)
+
+SELECT
+    date_day,
+    YEAR(date_day) AS year_number,
+    DATEPART(QUARTER, date_day) AS quarter_number,
+    MONTH(date_day) AS month_number,
+    DATENAME(MONTH, date_day) AS month_name,
+    DAY(date_day) AS day_of_month,
+    DATEPART(WEEK, date_day) AS week_number,
+    DATENAME(WEEKDAY, date_day) AS day_name,
+    DATEPART(WEEKDAY, date_day) AS day_of_week_number,
+    CASE
+        WHEN DATEPART(WEEKDAY, date_day) IN (1, 7) THEN 'Weekend'
+        ELSE 'Weekday'
+    END AS day_type
+FROM dates
+WHERE date_day IS NOT NULL;

models/marts/core/dimensions/dim_employees.sql

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+SELECT 
+    p.employee_id,
+    e.store_id,
+    e.manager_id,
+    CONCAT(p.first_name, ' ', p.last_name) as employee_name,
+    e.job_title,
+    e.department,
+    e.performance_rating,
+    e.store_name,      
+    e.store_city,
+    c.email,
+    c.phone,
+    e.annual_salary_usd,  
+    e.commission_rate_pct,    
+    e.years_employed,    
+    e.is_active,
+    p.hire_date 
+FROM {{ ref('int_employee_profile') }} as p 
+
+LEFT JOIN {{ ref('int_employee_contact') }} as c  
+    ON p.employee_id = c.employee_id
+
+LEFT JOIN {{ ref('int_employee_employment') }} as e  
+    ON p.employee_id = e.employee_id ; 

models/marts/core/dimensions/dim_products.sql

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+SELECT
+    a.product_id,
+    a.sku,
+    a.product_name,
+    a.brand,
+    a.category,
+    a.sub_category,
+    a.department,
+    a.launched_date,
+    a.product_url,
+    p.base_price_usd,
+    p.cost_price_usd,
+    p.gross_margin_pct,
+    i.is_available,
+    i.stock_quantity,
+    i.reorder_level,
+    s.supplier_name,
+    s.supplier_country,
+    s.weight_kg,
+    s.warranty_years,
+    s.rating_avg,
+    s.review_count
+FROM {{ ref('int_product_attributes') }} AS a
+LEFT JOIN {{ ref('int_product_pricing') }} AS p
+    ON a.product_id = p.product_id
+LEFT JOIN {{ ref('int_product_inventory') }} AS i
+    ON a.product_id = i.product_id
+LEFT JOIN {{ ref('int_product_supplier') }} AS s
+    ON a.product_id = s.product_id
+WHERE a.product_id IS NOT NULL;

models/marts/core/dimensions/dim_stores.sql

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+SELECT
+    p.store_id,
+    p.store_name,
+    p.store_type,
+    p.manager_name,
+    p.opened_date,
+    l.address,
+    l.city,
+    l.state,
+    l.state_full,
+    l.zip_code,
+    l.country,
+    l.region,
+    l.district,
+    l.phone,
+    o.sq_footage,
+    o.num_employees,
+    o.annual_rent_usd,
+    o.is_active,
+    o.has_parking,
+    o.has_cafe
+FROM {{ ref('int_store_profile') }} AS p
+LEFT JOIN {{ ref('int_store_location') }} AS l
+    ON p.store_id = l.store_id
+LEFT JOIN {{ ref('int_store_operations') }} AS o
+    ON p.store_id = o.store_id
+WHERE p.store_id IS NOT NULL;