const asyncHandler = require("../Middleware/async");
const sequelize = require('sequelize')
const StoreModel = require("../Model/StoreModel");
const db = require("../Config/db");
const ErrorResponse = require("../utils/errorResponse");
const SuccessResponse = require("../utils/successResponse");

const dateFormat = require("dateformat");

exports.getStoreInfo = asyncHandler(async (req, res, next) => {
    console.log("GET STORE INFO EXEC ")
    try {
        let store = await StoreModel.findAll()
        console.log("STORE ", store)
        if (!store) {
            return next(new ErrorResponse("No store found", 400));
        }
        res.status(200).send({
            success: true,
            data: store
        })
    } catch (err) {
        console.log("ERROR GET ALL STORE", err)
        return next(new ErrorResponse(err, 400));
    }
})

exports.registerStore = asyncHandler(async (req, res, next) => {
    const { store_name } = req.body
    try {
        const t = await db.transaction()
        // check whether store name is existing 
        const existingStore = await StoreModel.findOne({
            where: { ST_NAME: store_name }
        })

        if (existingStore) {
            return next(new ErrorResponse("Store name already exists", 400));
        }
        var date = dateFormat(new Date(), "mm/dd/yyyy");

        const nextStoreCode = await generateNextStoreCode()
        let store = await StoreModel.create(
            {
                ST_CODE: nextStoreCode,
                ST_NAME: store_name,
                ST_STAT: 'A',
                DATE_CREA: date,
                DATE_UPDT: date,
                DATE_FORMAT: "MM/dd/yyyy",
                DATE_DEFAULT: 'L',
                SA_DECIMAL: '2',
                SB_DECICMA: '2',
                DEC_SEP: '.',
                THO_SEP: ',',
                USER_CREA: req.user.USER_NAME,
                USER_UPDT: '',
            }, { transaction: t }
        )

        await createStoreTables(nextStoreCode, t);

        await t.commit();

        res.status(201).json({
            success: true,
            data: store

        })

    } catch (err) {
        return next(new ErrorResponse(err, 400));
    }
})

async function generateNextStoreCode() {
    const lastStore = await StoreModel.findOne({
        order: [['ST_CODE', 'DESC']]
    });

    if (!lastStore) {
        return 'AA001';  // Starting point if no stores are present
    }

    // use regex to separate letters and numbers
    let [letters, numbers] = lastStore.ST_CODE.match(/[A-Z]+|\d+/g);
    // letters -> AA , numbers -> 001

    numbers = parseInt(numbers);

    if (numbers < 999) {
        numbers++;
    } else {
        numbers = 1;
        letters = incrementLetters(letters);
    }

    return letters + numbers.toString().padStart(3, '0');
}

function incrementLetters(letters) {
    const maxLetters = 'ZZ';
    if (letters === maxLetters) {
        throw new Error("Maximum limit reached.");
    }

    let firstChar = letters.charCodeAt(0);
    let secondChar = letters.charCodeAt(1);

    // if second character is Z, increment first character 
    // and reset second character to A
    if (secondChar === 90) {
        firstChar++;
        secondChar = 65;
    } else {
        secondChar++;
    }

    return String.fromCharCode(firstChar) + String.fromCharCode(secondChar);
}

async function createStoreTables(storeCode, transaction) {
    try {
        // Table for TDSOHDR
        const tableTDSOHDR = `${storeCode}TDSOHDR`;
        await db.query(`
            IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbo' AND TABLE_NAME = '${tableTDSOHDR}')
            BEGIN
                CREATE TABLE [dbo].${tableTDSOHDR} (
                    [REC_TYPE] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_REF] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [HEADER_ID] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [CUST_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DELIV_ADD] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_DATE] smalldatetime  NOT NULL,
                    [STATUS] char(2) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_CD] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_CODE] nvarchar(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ORDER_NO] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ORDER_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [PRN_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DEL_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [INV_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [INV_PRD] int  NOT NULL,
                    [CUST_REF] nvarchar(25) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DEL_REF] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [COMMENTS] nvarchar(25) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_VAL] numeric(18,5)  NOT NULL,
                    [PAY_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M0] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M1] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M2] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M3] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M4] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M5] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M6] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M7] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M8] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M9] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [QUOTE_CONVERT] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [QUOTE_PRINT] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [QUOTE_EXPIRY] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [QUOTED_PRD] int  NOT NULL,
                    [QUOTATION_REF] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DATE_QUOTED] nvarchar(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [VOID_STATUS] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [USER_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    CONSTRAINT [PK_${tableTDSOHDR}] PRIMARY KEY CLUSTERED ([REC_TYPE], [TRANS_REF])
                    WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)  
                    ON [PRIMARY]
                    )  
                    ON [PRIMARY]
                    

                    ALTER TABLE [dbo].${tableTDSOHDR} SET (LOCK_ESCALATION = TABLE)
            END
        `, { type: sequelize.QueryTypes.RAW, transaction });

        // Table for TDSODET
        const tableTDSODET = `${storeCode}TDSODET`;
        await db.query(`
            IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbo' AND TABLE_NAME = '${tableTDSODET}')
            BEGIN
                CREATE TABLE [dbo].${tableTDSODET} (
                    [REC_TYPE] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DETAIL_ID] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_TYPE] nvarchar(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_REF] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_LINE] char(5) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [TRANS_CD] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [LOCATION] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ITEM_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DESCRIPTN] nvarchar(50) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [DUE_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [STATUS] char(2) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [VALUE_1] numeric(18,5)  NOT NULL,
                    [VALUE_2] numeric(18,5)  NOT NULL,
                    [VALUE_3] numeric(18,5)  NOT NULL,
                    [VALUE_4] numeric(18,5)  NOT NULL,
                    [VALUE_5] numeric(18,5)  NOT NULL,
                    [VALUE_6] numeric(18,5)  NOT NULL,
                    [VALUE_7] numeric(18,5)  NOT NULL,
                    [VALUE_8] numeric(18,5)  NOT NULL,
                    [VALUE_9] numeric(18,5)  NOT NULL,
                    [VALUE_10] numeric(18,5)  NOT NULL,
                    [VALUE_11] numeric(18,5)  NOT NULL,
                    [VALUE_12] numeric(18,5)  NOT NULL,
                    [VALUE_13] numeric(18,5)  NOT NULL,
                    [VALUE_14] numeric(18,5)  NOT NULL,
                    [VALUE_15] numeric(18,5)  NOT NULL,
                    [VALUE_16] numeric(18,5)  NOT NULL,
                    [VALUE_17] numeric(18,5)  NOT NULL,
                    [VALUE_18] numeric(18,5)  NOT NULL,
                    [VALUE_19] numeric(18,5)  NOT NULL,
                    [VALUE_20] numeric(18,5)  NOT NULL,
                    [UNIT_SALE] nvarchar(5) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ORD_PRD] int  NOT NULL,
                    [DEL_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [INV_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [INV_NO] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [INV_PRD] int  NOT NULL,
                    [ACCNT_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M0] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M1] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M2] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M3] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M4] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M5] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M6] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M7] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M8] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M9] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ASSEMBLY_IND] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [SPLIT_VAL] int  NOT NULL,
                    [CREDIT_STATUS] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [PRICE_BOOK] nvarchar(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [SALE_QTY_VALUE] int  NOT NULL,
                    [STK_QTY_VALUE] int  NOT NULL,
                    [TOT_VALUE] int  NOT NULL,
                    [DISP_VAL_1] int  NOT NULL,
                    [DISP_VAL_2] int  NOT NULL,
                    [FIXED_VAL] int  NOT NULL,
                    [LINE_REF] nvarchar(20) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [USER_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [USER_INVOICED] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ALLOC_REF] char(20) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [UPDATE_STOCK] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [FIXED_VAL_2] int  NOT NULL,
                    [FIXED_VAL_3] int  NOT NULL,
                    CONSTRAINT [PK_${tableTDSODET}] PRIMARY KEY CLUSTERED ([TRANS_REF], [TRANS_LINE])
                    WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)  
                    ON [PRIMARY]
                    )  
                    ON [PRIMARY]
                    

                    ALTER TABLE [dbo].${tableTDSODET} SET (LOCK_ESCALATION = TABLE)
            END
        `, { type: sequelize.QueryTypes.RAW, transaction });

        // Table for TDINVMOV
        const tableTDINVMOV = `${storeCode}TDINVMOV`;
        await db.query(`
            IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbo' AND TABLE_NAME = '${tableTDINVMOV}')
            BEGIN
                CREATE TABLE [dbo].${tableTDINVMOV} (
                    [SEQUENCE] int  NOT NULL,
                    [REC_TYPE] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [MOV_PRD] int  NOT NULL,
                    [MOV_REF] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [MOV_LINE] char(4) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [LOCATION] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ITEM_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [MOV_DATE] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [STATUS] char(2) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [IR_STAT] char(1) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [BATCH_NO] int  NOT NULL,
                    [BATCH_LINE] char(5) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [LINE_REF] nvarchar(20) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [QUANTITY] numeric(18,5)  NOT NULL,
                    [COST] numeric(18,5)  NOT NULL,
                    [TOTAL] numeric(18,5)  NOT NULL,
                    [MOV_UNITS] nvarchar(5) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [MOV_TYPE] nvarchar(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [UPDTE_PHYS] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [UPDTE_ORDR] char(10) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ALLOC_REF] nvarchar(20) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ACCNT_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ASSET_CODE] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M0] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M1] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M2] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M3] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M4] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M5] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M6] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M7] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M8] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ANAL_M9] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ORIG_LINE_NO] char(5) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [PO_VALUE] numeric(18,5)  NOT NULL,
                    [ID_ENTERED] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    [ID_ALLOC] nvarchar(15) COLLATE SQL_Latin1_General_CP1_CS_AS  NOT NULL,
                    CONSTRAINT [PK_${tableTDINVMOV}] PRIMARY KEY CLUSTERED ([MOV_REF], [MOV_LINE])
                    WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)  
                    ON [PRIMARY]
                    )  
                    ON [PRIMARY]
                    

                ALTER TABLE [dbo].${tableTDINVMOV} SET (LOCK_ESCALATION = TABLE)
            END
        `, { type: sequelize.QueryTypes.RAW, transaction });

    } catch (error) {
        console.error('Error creating store tables:', error);
        throw new Error('Failed to create store tables.');
    }
}