using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;

using Dapper;

using Fab2ApprovalSystem.Misc;
using Fab2ApprovalSystem.Models;

namespace Fab2ApprovalSystem.DMO;

public class PartsRequestDMO {

    private readonly IDbConnection db = new SqlConnection(GlobalVars.DB_CONNECTION_STRING);

    public IEnumerable<PartsRequestList> GetPartsRequestList() {
        List<PartsRequestList> r = db.Query<PartsRequestList>("PartsRequestGetList", commandType: CommandType.StoredProcedure).ToList();
        return r;
    }

    public void Insert(PartsRequest pr) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", value: pr.PRNumber, dbType: DbType.Int32, direction: ParameterDirection.InputOutput);
        parameters.Add("@OriginatorID", pr.OriginatorID);

        db.Execute("PartsRequestInsert", parameters, commandType: CommandType.StoredProcedure);

        pr.PRNumber = parameters.Get<int>("@PRNumber");
    }

    public void Update(PartsRequest pr) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", pr.PRNumber);
        parameters.Add("@Title", pr.Title);
        parameters.Add("@RequestorID", pr.RequestorID);
        parameters.Add("@TechLeadID", pr.TechLeadID);
        parameters.Add("@Description", pr.Description);

        db.Execute("PartsRequestUpdate", parameters, commandType: CommandType.StoredProcedure);
    }

    public PartsRequest Get(int PRNumber) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", value: PRNumber, dbType: DbType.Int32);

        return db.Query<PartsRequest>("PartsRequestGet", parameters, commandType: CommandType.StoredProcedure).SingleOrDefault();
    }

    public IEnumerable<PartsRequestAttachmentList> GetAttachments(int prNumber) {
        List<PartsRequestAttachmentList> attachments = db.Query<PartsRequestAttachmentList>(
            "SELECT AttachmentID, PRNumber, FileName, A.UserID, UploadDate, U.FirstName + ' ' + U.LastName AS FullName " +
            "FROM PartsRequestAttachment A " +
            "INNER JOIN Users U ON U.UserID = A.UserID " +
            "WHERE PRNumber = @PRNumber",
            new { PRNumber = prNumber }).ToList();
        return attachments;
    }

    public void InsertAttachment(PartsRequestAttachment attach) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", attach.PRNumber);
        parameters.Add("@UserID", attach.UserID);
        parameters.Add("@FileName", attach.FileName);

        db.Execute("PartsRequestInsertAttachment", parameters, commandType: CommandType.StoredProcedure);
    }

    public string GetFileName(string attachmentID) {
        DynamicParameters parameters = new();
        parameters.Add("@AttachmentID", attachmentID);
        var fileName = db.Query<string>("PartsRequestGetAttachmentFileName", parameters, commandType: CommandType.StoredProcedure).Single();
        return fileName;
    }

    public void DeleteAttachment(int attachmentID) {
        DynamicParameters parameters = new();
        parameters.Add("@AttachmentID", attachmentID);
        db.Execute("PartsRequestDeleteAttachment", parameters, commandType: CommandType.StoredProcedure);
    }

    public void Submit(int prNumber, int userID) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", prNumber);
        parameters.Add("@UserID", userID);
        db.Execute("PartsRequestSubmitForApproval", parameters, commandType: CommandType.StoredProcedure);
    }

    public IEnumerable<ApprovalLogHistory> GetApprovalLogHistory(int prNumber) {
        DynamicParameters parameters = new();
        parameters.Add("@PRNumber", prNumber);
        List<ApprovalLogHistory> approverList = db.Query<ApprovalLogHistory>("PartsRequestGetApprovalLogHistory", parameters, commandType: CommandType.StoredProcedure).ToList();
        return approverList;
    }

    public IEnumerable<MyPartsRequestList> GetMyPartsRequests(int userID) {
        DynamicParameters parameters = new();
        parameters.Add("@UserID", userID);

        IEnumerable<MyPartsRequestList> r = db.Query<MyPartsRequestList>("PartsRequestGetListByUser", parameters, commandType: CommandType.StoredProcedure);
        return r.ToList();
    }

    public void DeleteDocument(int prNumber, int userid) {
        DynamicParameters parameters = new();
        parameters.Add("@UserID", userid);
        parameters.Add("@PRNumber", prNumber);

        db.Execute("PartsRequestDelete", parameters, commandType: CommandType.StoredProcedure);
    }

}