DROP TABLE IF EXISTS FT_Refund;
DROP TABLE IF EXISTS FT_Registration;

DROP TABLE IF EXISTS dim_factories;
CREATE TABLE dim_factories (
	factory_sk INTEGER identity(1,1) PRIMARY KEY,
	factory_bk NVARCHAR(100) NOT NULL,
	factory_name NVARCHAR(250),
	factory_country NVARCHAR(250)
);
GO

DROP TABLE IF EXISTS dim_time;
CREATE TABLE dim_time (
	time_sk INTEGER identity(1,1) PRIMARY KEY,
	time_bk DATE NOT NULL,
	time_string NCHAR(10) NOT NULL,
	year INTEGER,
	month INTEGER,
	day INTEGER,
	quarter INTEGER
);
GO

DROP PROCEDURE IF EXISTS [dbo].[sPopulateDimDates_v2]
GO

CREATE PROCEDURE [dbo].[sPopulateDimDates_v2]
@FromDate DATE = '1950-01-01',
@ToDate DATE = '2050-12-31'

AS
BEGIN
DECLARE @DimDates TABLE
(
	time_sk INTEGER identity(1,1) PRIMARY KEY,
	time_bk DATE NOT NULL,
	time_string NCHAR(10) NOT NULL,
	year INTEGER,
	month INTEGER,
	day INTEGER,
	quarter INTEGER
);

--Setting language
SET LANGUAGE English
 
--Populating Dimension
WHILE @FromDate <= @ToDate
	BEGIN
		INSERT INTO @DimDates(
			time_bk, 
			time_string, 
			year,
			month,
			day,
			quarter
            )
            SELECT 
			@FromDate as time_bk,
			convert(nvarchar(10), @FromDate,20) AS time_string,
            YEAR(@FromDate) AS [year],
            MONTH(@FromDate) AS [month],
			DAY(@FromDate) AS [day],
            DATENAME(QUARTER,@FromDate) AS [quarter]
      SET @FromDate = DATEADD(DAY, 1, @FromDate)
END

INSERT INTO dbo.dim_time(
			time_bk, 
			time_string, 
			year,
			month,
			day,
			quarter
            )
SELECT time_bk, time_string, year, month, day,quarter
FROM @DimDates
 
END
GO

EXEC [dbo].[sPopulateDimDates_v2]
GO


DROP TABLE IF EXISTS dim_drugs;
CREATE TABLE dim_drugs (
	drug_sk INTEGER identity(1, 1) PRIMARY KEY,
	drug_product_id_bk NVARCHAR(13) NOT NULL, -- business key
	record_status CHAR(1), -- A for active, D for deactivated
	drug_product_name NVARCHAR(250),
	ro_number NVARCHAR(20),
	drug_product_family_id INTEGER,
	drug_product_family_name NVARCHAR(250)
);
GO

DROP TABLE IF EXISTS dim_countries;
CREATE TABLE dim_countries (
	country_sk INTEGER identity(1, 1) PRIMARY KEY,
	country_code NVARCHAR(2), -- business key
	country_name NVARCHAR(250)
);

DROP TABLE IF EXISTS dim_claim_statuses;
CREATE TABLE dim_claim_statuses (
	claim_status_sk INTEGER identity(1, 1) PRIMARY KEY,
	status_code_bk NVARCHAR(1) NOT NULL, -- A for Accepted, D for Declined, W for Waiting
	status_description NVARCHAR(50)
);
GO

-- insert statuses
INSERT INTO dim_claim_statuses(status_code_bk, status_description)
VALUES 
	('A', 'Accepted'),
	('D', 'Declined'),
	('W', 'Waiting');
GO

DROP TABLE IF EXISTS claim_status_mapping;
CREATE TABLE claim_status_mapping (
	status_code_bk NVARCHAR(1),
	status_code_value NVARCHAR(50)
);
GO

DROP TABLE IF EXISTS dim_indications;
CREATE TABLE dim_indications (
	indication_sk INTEGER identity(1, 1) PRIMARY KEY,
	indication_id_bk nvarchar(13) NOT NULL,
	record_status CHAR(1),
	indication_description NVARCHAR(500)
);
GO

--TABELE FAKTÓW
--to by było do SQL Server'a < 2016
--IF OBJECT_ID('dbo.FT1_Registartion') IS NOT NULL DROP TABLE dbo.MyCategories;


CREATE TABLE FT_Registration (
	ft_registration_sk INTEGER identity(1,1) PRIMARY KEY,
	expected_response_time_fk integer FOREIGN KEY REFERENCES dim_time(time_sk) NOT NULL,
	submission_date_fk  integer FOREIGN KEY REFERENCES dim_time(time_sk) NOT NULL,
	response_time_fk integer FOREIGN KEY REFERENCES dim_time(time_sk), -- moze byc null
	drug_fk integer FOREIGN KEY REFERENCES dim_drugs(drug_sk) NOT NULL, 
	factory_API_fk integer FOREIGN KEY REFERENCES dim_factories(factory_sk) NOT NULL,
	factory_bulk_fk integer FOREIGN KEY REFERENCES dim_factories(factory_sk) NOT NULL,
	factory_package_fk integer FOREIGN KEY REFERENCES dim_factories(factory_sk) NOT NULL,
	country_fk integer FOREIGN KEY REFERENCES dim_countries(country_sk) NOT NULL, 
	--claim status do uspójnienia z tabelą dim_status, wydaje mi się, że można by dodać przedrostek claim do kolumn, będzie czytelniej :) 
	claim_status_fk integer FOREIGN KEY REFERENCES dim_claim_statuses(claim_status_sk) NOT NULL, 
	indication_fk integer FOREIGN KEY REFERENCES dim_indications(indication_sk) NOT NULL,
	claim_number VARCHAR(20), 
	-- cnt jest tylko zliczeniowy, będzie miał 1, więc dałbym tinyint
	cnt tinyint,
);
GO

CREATE TABLE FT_Refund (
	ft_registartion_sk INTEGER identity(1,1) PRIMARY KEY,
	claim_status_fk integer FOREIGN KEY REFERENCES dim_claim_statuses(claim_status_sk) NOT NULL,
	drug_fk integer FOREIGN KEY REFERENCES dim_drugs(drug_sk) NOT NULL,
	submission_date_fk integer FOREIGN KEY REFERENCES dim_time(time_sk) NOT NULL,
	expected_response_fk integer FOREIGN KEY REFERENCES dim_time(time_sk) NOT NULL,
	response_time_fk integer FOREIGN KEY REFERENCES dim_time(time_sk), -- moze byc null
	country_fk integer FOREIGN KEY REFERENCES dim_countries(country_sk) NOT NULL, 
	indication_fk integer FOREIGN KEY REFERENCES dim_indications(indication_sk) NOT NULL, 
	--decimal zjada mniej, niż money, do przedyskutowania (precyzja - liczba miejsc przed i po przecinku, skala - liczba miejsc po przecinku)
	price money,
	reimbursement_amountPercent smallint, 
	--tu obliczymy jako iloczyn price * reimbursement_amountPercent
	reimbursement_amount decimal(9,2),
	claim_number VARCHAR(20),
	cnt tinyint,
);
GO