//
//  FuelEntryController.swift
//
//
//  Created by Bill Ryckman on 4/24/23.
//

import Vapor
import FluentKit
import FluentSQL

struct FuelEntryV2Controller: RouteCollection {
    func boot(routes: RoutesBuilder) throws {
        let fuelEntries = routes.grouped("fuel_entries")
        let tokenAuthMiddleware = Token.authenticator()
        let guardMiddleware = User.guardMiddleware()
        let tokenAuthGroup = fuelEntries.grouped(tokenAuthMiddleware, guardMiddleware)
        tokenAuthGroup.get(use: filterLoadDate)
        tokenAuthGroup.get("main", use: filterLoadDate)
        tokenAuthGroup.get("timestamp", use: filterTimeStamp)
        tokenAuthGroup.get("images", use: filterImages)
        tokenAuthGroup.get("test", use: filtered)
        tokenAuthGroup.get("rpm", use: rpm)
        tokenAuthGroup.get("maxim", use: filtered)
        tokenAuthGroup.post(use: create)
        tokenAuthGroup.put( use: softdelete)
        tokenAuthGroup.group(":fuelEntryID") { fuelEntry in
            fuelEntry.delete(use: delete)
        }
        
    }
    
    func index(req: Request) async throws -> [FuelEntry] {
        return try await FuelEntry.query(on: req.db).all()
    }
    
    struct filteredreturn: Content{
        var fuelentries: [FuelEntry]
        var pages: Int
    }
    
    struct dload: Content{
        var id: UUID
    }
    
    @Sendable
    func softdelete(req: Request) async throws -> Response {
        let ids = try req.content.decode([dload].self)
        var msg: [String] = []
        for id in ids {
            guard let fe = try await FuelEntry.find(id.id, on: req.db) else {
                msg.append("create error message for item")
                continue
            }
            fe.downloaded = true
            try await fe.save(on: req.db)
        }
        let response = Response(status: .ok, body: "good")
        return response
    }
    
    fileprivate func queryParamExists(_ req: Request, _ param: String) async throws -> Bool {
        let x = try req.query.get(Bool.self, at: param) ? true : false
        
        print ("x: \(x)")
        return x
        
    }
    
    fileprivate func parseDate2(_ dateString: String, _ start: Bool = true) throws -> Date? {
        let currentDate = Calendar.current.startOfDay(for: Date())
        if(dateString.count == 0 && start){
            if(start) {
                return Calendar.current.date(byAdding: .day, value: -2, to: currentDate)
            } else {
                return currentDate
            }
        } else {
            let parts = dateString.split(separator: "-")
            if(parts.count != 3) {
                return nil
            }
            let year = Int(parts[0]) ?? nil
            if(year == nil) {
                return nil
            }
            let month = Int(parts[1]) ?? nil
            if(month == nil) {
                return nil
            }
            let day = Int(parts[2]) ?? nil
            if( day == nil ) {
                return nil
            }
            var dateComponents = DateComponents()
            dateComponents.year = year
            dateComponents.month = month
            dateComponents.day = day
            if(start) {
                dateComponents.hour = 0
                dateComponents.minute = 0
                dateComponents.second = 0
            } else {
                dateComponents.hour = 23
                dateComponents.minute = 59
                dateComponents.second = 59
            }
            let calendar = Calendar(identifier: .gregorian)
            return calendar.date(from: dateComponents)
        }
    }
    
    fileprivate func parseDate(_ dateString: String, _ start: Bool = true) throws -> Date? {
        
        if(dateString.count == 0){
            return nil
        } else {
            let parts = dateString.split(separator: "-")
            if(parts.count != 3) {
                throw Abort(.custom(code: 400,reasonPhrase: "Value at path '\(start ? "startdate" : "enddate")' was not of format 'yyyy-MM-dd'. Data found at '\(start ? "startdate" : "enddate")' was not properly formatted."))
            }
            let year = Int(parts[0]) ?? nil
            if(year == nil) {
                throw Abort(.custom(code: 400,reasonPhrase: "Value at path '\(start ? "startdate" : "enddate")' was not of format 'yyyy-MM-dd'. Data found at '\(start ? "startdate" : "enddate")' was not properly formatted.  Year component must be in the format yyyy and must be an integer"))
            }
            let month = Int(parts[1]) ?? nil
            if(month == nil) {
                throw Abort(.custom(code: 400,reasonPhrase: "Value at path '\(start ? "startdate" : "enddate")' was not of format 'yyyy-MM-dd'. Data found at '\(start ? "startdate" : "enddate")' was not properly formatted.  Month component must be in the format MM and must be an integer"))
            }
            let day = Int(parts[2]) ?? nil
            if( day == nil ) {
                throw Abort(.custom(code: 400,reasonPhrase: "Value at path '\(start ? "startdate" : "enddate")' was not of format 'yyyy-MM-dd'. Data found at '\(start ? "startdate" : "enddate")' was not properly formatted.  Day component must be in the format dd and must be an integer"))
            }
            var dateComponents = DateComponents()
            dateComponents.year = year
            dateComponents.month = month
            dateComponents.day = day
            if(start) {
                dateComponents.hour = 0
                dateComponents.minute = 0
                dateComponents.second = 0
            } else {
                dateComponents.hour = 23
                dateComponents.minute = 59
                dateComponents.second = 59
            }
            let calendar = Calendar(identifier: .gregorian)
            return calendar.date(from: dateComponents)
        }
    }
    
    fileprivate func generateSQLNoImage(_ startdate: Date? = nil, _ enddate: Date? = nil) -> SQLQueryString {
        if(startdate == nil) {
            return SQLQueryString("select count(*) as total from \"fuel_entries\";")
        }
        if(enddate != nil) {
            return SQLQueryString("select count(*) as total from \"fuel_entries\" where \"loadDate\" >= \(bind: startdate) and \"loadDate\" <= \(bind: enddate) ;")
        } else {
            return SQLQueryString("select count(*) as total from \"fuel_entries\" where \"loadDate\" >= \(bind: startdate);")
        }
    }
    
    fileprivate func generateSQLImage(_ startdate: Date? = nil, _ enddate: Date? = nil) -> SQLQueryString {
        var sql: String = ""
        if(startdate == nil) {
            return SQLQueryString("select count(*) as total from \"fuel_entries\" where \"image\" is not null;")
        }
        if(enddate != nil) {
            sql = "select count(*) as total from \"fuel_entries\" where \"loadDate\" >= \(String(describing: startdate)) and \"loadDate\" <= \(String(describing: enddate)) and \"image\" is not null;"
            return SQLQueryString("select count(*) as total from \"fuel_entries\" where \"loadDate\" >= \(bind: startdate) and \"loadDate\" <= \(bind: enddate) and \"image\" is not null;")
        } else {
            sql = "select count(*) as total from \"fuel_entries\" where \"image\" is not null and \"loadDate\" >= '\(startdate ?? Date())';"
            return SQLQueryString(sql)
        }
    }
    
    struct CountRecords: Content {
        let total: Int
    }
    
    fileprivate func getCount(_ req: Request, _ sql: SQLQueryString) async throws -> Int {
        print(sql)
        if let db = req.db as? SQLDatabase {
            let answer = try await db
                .raw(sql)
                .first(decoding: CountRecords.self)
            return answer?.total ?? 0
        } else {
            return 0
        }
    }
    
    fileprivate func getPaging(_ page: Int, _ per: Int, _ records: Int) async throws -> [String: Any] {
        var vals: [String: Any] = [:]
        vals["page"] = page
        vals["per"] = per
        vals["records"] = records
        let lastpage = Int(ceil(Double(records) / Double(per)))
        vals["lastpage"] = (page == lastpage) ? true : false
        vals["offset"] = ( page * per) - per
        return vals
    }
    
    fileprivate func getParams(_ req: Request) async throws -> [qparam] {
        let urlComponents = URLComponents(string: req.url.description)!
        var params: [qparam] = []
        for queryItem in urlComponents.queryItems ?? [] {
            params.append(qparam(name: queryItem.name, value: queryItem.value ?? ""))
        }
        return params
    }
    
    fileprivate func getMaximError(_ req: Request, _ message: String) async throws -> returnObj {
        let rt = req.route!.description.replacingOccurrences(of: "GET ", with: "").replacingOccurrences(of: "PUT ", with: "").replacingOccurrences(of: "POST ", with: "").replacingOccurrences(of: "DELETE ", with: "")
        let method = req.method.rawValue
        let baseurl = "https://fueling.prelub.com"
        let data : [FuelEntry.Output] = []
        let meta = Meta(page: 0, per: 0, total: 0, lastpage: true, error: true, message: message, method: method, baseurl: baseurl, route: rt, querystring: "" )
        return returnObj(data: data, meta: meta)
        
    }
    
    @Sendable
    func filterLoadDate(req: Request) async throws -> Response {
        let rt = req.route!.description.replacingOccurrences(of: "GET ", with: "").replacingOccurrences(of: "PUT ", with: "").replacingOccurrences(of: "POST ", with: "").replacingOccurrences(of: "DELETE ", with: "")
        let method = req.method.rawValue
        let baseurl = "https://fueling.prelub.com"
        
        let qstring = req.query
        let components: Dictionary<String, String?> = try req.query.decode(Dictionary<String, String?>.self)
        
        var startdate : Date?
        var qs: [String] = []
        for component in components {
            qs.append( "\(component.key)=\(component.value ?? "nil")")
        }
        if(try qstring.get(String?.self,  at: "startdate") != nil) {
            startdate = try parseDate2(qstring.get(String?.self, at: "startdate") ?? "")
            if(startdate == nil) {
                return try await(getMaximError(req, "startdate is invalid format. YYYY-MM-DD")) .encodeResponse(for: req)
            }
        } else {
            //throw error
            return try await getMaximError(req, "startdate is required").encodeResponse(for: req)
        }
        var enddate : Date?//= try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        if(try qstring.get(String?.self,  at: "enddate") != nil) {
            enddate = try parseDate2(qstring.get(String?.self, at: "enddate") ?? "", false)
            if(enddate == nil) {
                return try await getMaximError(req, "enddate is invalid format. YYYY-MM-DD").encodeResponse(for: req)
            }
        }
        let emptyData: Data? = Data()
        let page = try qstring.get(Int?.self, at: "page") ?? 1
        let per = try qstring.get(Int?.self, at: "per") ?? 10
        let qsStr = qs.joined(separator: "&")
        
        let records = try await getCount(req, generateSQLNoImage(startdate ?? nil, enddate ?? nil) )
        
        let paging = try await getPaging(page, per, records)
        let meta = Meta(page: page, per: per, total: records, lastpage: (paging["lastpage"] != nil) ? paging["lastpage"] as! Bool : false, error: false, message: "", method: method, baseurl: baseurl, route: rt, querystring: "?\(qsStr)")
        let query = try await FuelEntry.query(on: req.db)
            .field(\.$id)
            .field(\.$timestamp)
            .field(\.$userID)
            .field(\.$product)
            .field(\.$make)
            .field(\.$model)
            .field(\.$serialNumber)
            .field(\.$tankID)
            .field(\.$fuelAmount)
            .field(\.$fuelType)
            .field(\.$isOverride)
            .field(\.$latitude)
            .field(\.$longitude)
            .field(\.$downloaded)
            .field(\.$loaddate)
            .group(.and) {
                grp in
                grp.filter(\.$loaddate >= startdate)
                if( enddate != nil) {
                    grp.filter(\.$loaddate <= enddate!)
                }
            }
            .sort(\.$loaddate, .ascending)
            .range(lower: (paging["offset"] as! Int), upper: (paging["offset"] as! Int) + (paging["per"] as! Int))
            .all().map{
                FuelEntry.Output(id: $0.id, timestamp: $0.timestamp, ssid: $0.userID, latitude: $0.latitude, longitude: $0.longitude, product: $0.product, make: $0.make, model: $0.model, serialNumber: $0.serialNumber, tankID: $0.tankID, fuelAmount: $0.fuelAmount, fuelType: $0.fuelType, isOverride: $0.isOverride, image: emptyData, loaddate: $0.loaddate)
            }
        let response = returnObj(data: query, meta: meta)
        return try await response.encodeResponse(for: req)
    }
    
    @Sendable
    func filterImages(req: Request) async throws -> Response {
        let rt = req.route!.description.replacingOccurrences(of: "GET ", with: "").replacingOccurrences(of: "PUT ", with: "").replacingOccurrences(of: "POST ", with: "").replacingOccurrences(of: "DELETE ", with: "")
        let method = req.method.rawValue
        let baseurl = "https://fueling.prelub.com"
        let qstring = req.query
        let components: Dictionary<String, String?> = try req.query.decode(Dictionary<String, String?>.self)
        var startdate : Date?
        var qs: [String] = []
        for component in components {
            qs.append( "\(component.key)=\(component.value ?? "nil")")
        }
        if(try qstring.get(String?.self,  at: "startdate") != nil) {
            startdate = try parseDate2(qstring.get(String?.self, at: "startdate") ?? "")
            if(startdate == nil) {
                return try await(getMaximError(req, "startdate is invalid format. YYYY-MM-DD")) .encodeResponse(for: req)
            }
        } else {
            //throw error
            return try await getMaximError(req, "startdate is required").encodeResponse(for: req)
        }
        var enddate : Date?//= try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        if(try qstring.get(String?.self,  at: "enddate") != nil) {
            enddate = try parseDate2(qstring.get(String?.self, at: "enddate") ?? "", false)
            if(enddate == nil) {
                return try await getMaximError(req, "enddate is invalid format. YYYY-MM-DD").encodeResponse(for: req)
            }
        }
        let page = try qstring.get(Int?.self, at: "page") ?? 1
        let per = try qstring.get(Int?.self, at: "per") ?? 5
        var records : Int = 0
        if(enddate == nil) {
            records = try await FuelEntry.query(on: req.db)
                .field(\.$id)
                .group(.and) {
                    grp in
                    grp.filter(\.$loaddate >= startdate)
                        .filter(\.$image != nil)
                }
                .all()
                .count
        } else {
            records = try await FuelEntry.query(on: req.db)
                .field(\.$id)
                .group(.and) {
                    grp in
                    grp.filter(\.$loaddate >= startdate)
                        .filter(\.$image != nil)
                        .filter(\.$loaddate <= enddate)
                }
                .all()
                .count
        }
        let qsStr = qs.joined(separator: "&")
        
        let paging = try await getPaging(page, per, records)
        let meta = Meta(page: page, per: per, total: records, lastpage: (paging["lastpage"] != nil) ? paging["lastpage"] as! Bool : false, error: false, message: "", method: method, baseurl: baseurl, route: rt, querystring: "?\(qsStr)")
        let query = try await FuelEntry.query(on: req.db)
            .field(\.$id)
            .field(\.$timestamp)
            .field(\.$userID)
            .field(\.$product)
            .field(\.$make)
            .field(\.$model)
            .field(\.$serialNumber)
            .field(\.$tankID)
            .field(\.$fuelAmount)
            .field(\.$fuelType)
            .field(\.$isOverride)
            .field(\.$latitude)
            .field(\.$longitude)
            .field(\.$downloaded)
            .field(\.$loaddate)
            .field(\.$image)
            .group(.and) {
                grp in if(enddate != nil) {
                    grp.filter(\.$loaddate >= startdate)
                        .filter(\.$image != nil)
                        .filter(\.$loaddate <= enddate!)
                } else {
                    grp.filter(\.$loaddate >= startdate)
                        .filter(\.$image != nil)
                }
            }
            .sort(\.$loaddate, .ascending)
            .range(lower: (paging["offset"] as! Int), upper: (paging["offset"] as! Int) + (paging["per"] as! Int))
            .all().map{
                FuelEntry.Output(id: $0.id, timestamp: $0.timestamp, ssid: $0.userID, latitude: $0.latitude, longitude: $0.longitude, product: $0.product, make: $0.make, model: $0.model, serialNumber: $0.serialNumber, tankID: $0.tankID, fuelAmount: $0.fuelAmount, fuelType: $0.fuelType, isOverride: $0.isOverride, image: $0.image, loaddate: $0.loaddate)
            }
        let response = returnObj(data: query, meta: meta)
        return try await response.encodeResponse(for: req)
    }
    
    @Sendable
    func filterTimeStamp(req: Request) async throws -> Response {
        let rt = req.route!.description.replacingOccurrences(of: "GET ", with: "").replacingOccurrences(of: "PUT ", with: "").replacingOccurrences(of: "POST ", with: "").replacingOccurrences(of: "DELETE ", with: "")
        let method = req.method.rawValue
        let baseurl = "https://fueling.prelub.com"
        let qstring = req.query
        let components: Dictionary<String, String?> = try req.query.decode(Dictionary<String, String?>.self)
        var startdate : Date?
        var qs: [String] = []
        for component in components {
            qs.append( "\(component.key)=\(component.value ?? "nil")")
        }
        if(try qstring.get(String?.self,  at: "startdate") != nil) {
            startdate = try parseDate2(qstring.get(String?.self, at: "startdate") ?? "")
            if(startdate == nil) {
                return try await(getMaximError(req, "startdate is invalid format. YYYY-MM-DD")) .encodeResponse(for: req)
            }
        } else {
            //throw error
            return try await getMaximError(req, "startdate is required").encodeResponse(for: req)
        }
        var enddate : Date?//= try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        if(try qstring.get(String?.self,  at: "enddate") != nil) {
            enddate = try parseDate2(qstring.get(String?.self, at: "enddate") ?? "", false)
            if(enddate == nil) {
                return try await getMaximError(req, "enddate is invalid format. YYYY-MM-DD").encodeResponse(for: req)
            }
        }
        let emptyData: Data? = Data()
        let page = try qstring.get(Int?.self, at: "page") ?? 1
        let per = try qstring.get(Int?.self, at: "per") ?? 10
        let records = try await getCount(req, generateSQLNoImage(startdate ?? nil, enddate ?? nil) )
        let paging = try await getPaging(page, per, records)
        let meta = Meta(page: page, per: per, total: records, lastpage: (paging["lastpage"] != nil) ? paging["lastpage"] as! Bool : false, error: false, message: "", method: method, baseurl: baseurl, route: rt, querystring: "?\(qs.joined(separator: "&"))")
        let query = try await FuelEntry.query(on: req.db)
            .field(\.$id)
            .field(\.$timestamp)
            .field(\.$userID)
            .field(\.$product)
            .field(\.$make)
            .field(\.$model)
            .field(\.$serialNumber)
            .field(\.$tankID)
            .field(\.$fuelAmount)
            .field(\.$fuelType)
            .field(\.$isOverride)
            .field(\.$latitude)
            .field(\.$longitude)
            .field(\.$downloaded)
            .field(\.$loaddate)
            .group(.and) {
                grp in
                grp.filter(\.$timestamp >= startdate ?? Calendar.current.startOfDay(for: Calendar.current.date(byAdding: .day, value: -2, to: Date())!))
                if( enddate != nil) {
                    grp.filter(\.$timestamp <= enddate!)
                }
            }
            .sort(\.$loaddate, .ascending)
            .range(lower: (paging["offset"] as! Int), upper: (paging["offset"] as! Int) + (paging["per"] as! Int))
            .all().map{
                FuelEntry.Output(id: $0.id, timestamp: $0.timestamp, ssid: $0.userID, latitude: $0.latitude, longitude: $0.longitude, product: $0.product, make: $0.make, model: $0.model, serialNumber: $0.serialNumber, tankID: $0.tankID, fuelAmount: $0.fuelAmount, fuelType: $0.fuelType, isOverride: $0.isOverride, image: emptyData, loaddate: $0.loaddate)
            }
        let response = returnObj(data: query, meta: meta)
        return try await response.encodeResponse(for: req)
    }
    
    @Sendable
    func filtered(req: Request) async throws -> Response {
        let qstring = req.query
        let startdate = try parseDate(qstring.get(String?.self, at: "startdate") ?? "")
        let enddate = try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        let image = try qstring.get(Bool?.self, at: "image") ?? false
        let serial = try qstring.get(String?.self, at: "serial") ?? nil
        let tank = try qstring.get(String?.self, at: "tank") ?? nil
        let previous = try qstring.get(Bool?.self, at: "previous") ?? false
        
        
        
        var query = FuelEntry.query(on: req.db)
        if(image){
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$image)
                .field(\.$downloaded)
                .field(\.$loaddate)
                //.filter(\.$image != nil)
                
        } else {
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$downloaded)
                .field(\.$loaddate)
        }
        
        query = query.group(.and){
            grp in
            if( startdate != nil) {
                grp.filter(\.$loaddate >= startdate)
            }
            if( enddate != nil) {
                grp.filter(\.$loaddate <= enddate!)
            }
            if( serial != nil) {
                grp.filter(\.$serialNumber == serial!)
            }
            if( tank != nil) {
                grp.filter(\.$tankID == tank!)
            }
            if(!previous){
                grp.filter(\.$pulldate == nil)
            }
            
        }
        query = query.sort(\.$loaddate, .ascending)
        
        if(image){
            //query = query.filter(\.$image)
            let wimage = try await query.paginate(for: req).map{
                img in FuelEntry.wimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, isOverride: img.isOverride, image: img.image == nil ? Data(): img.image, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: previous == true ? img.pulldate : Date())
            }
            if(!previous){
                wimage.items.forEach{
                     _ = $0.toFuelEntry().save(on: req.db)
                }
            }
            
            return try await wimage.encodeResponse(for: req)
        } else {
            let woimage = try await query.paginate(for: req).map{
                img in FuelEntry.woimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, image: nil, isOverride: img.isOverride, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: previous == true ? img.pulldate : Date())
            }
            if(!previous) {
                woimage.items.forEach {
                    _ = $0.toFuelEntry().save(on: req.db)
                }
            }
            
            return try await woimage.encodeResponse(for: req)
        }
    }
    
    @Sendable
    func rpm(req: Request) async throws -> Response {
        let qstring = req.query
        let startdate = try parseDate(qstring.get(String?.self, at: "startdate") ?? "")
        let enddate = try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        let image = try qstring.get(Bool?.self, at: "image") ?? false
        let serial = try qstring.get(String?.self, at: "serial") ?? nil
        let tank = try qstring.get(String?.self, at: "tank") ?? nil
        let previous = try qstring.get(Bool?.self, at: "previous") ?? false
        
        
        var query = FuelEntry.query(on: req.db)
        if(image){
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$image)
                .field(\.$downloaded)
                .field(\.$loaddate)
                
                
        } else {
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$downloaded)
                .field(\.$loaddate)
        }
        
        query = query.group(.and){
            grp in
            if( startdate != nil) {
                grp.filter(\.$loaddate >= startdate!)
            }
            if( enddate != nil) {
                grp.filter(\.$loaddate <= enddate!)
            }
            if( serial != nil) {
                grp.filter(\.$serialNumber == serial!)
            }
            if( tank != nil) {
                grp.filter(\.$tankID == tank!)
            }
            if(!previous){
                grp.filter(\.$pulldate == nil)
            }
            
        }
        query = query.sort(\.$loaddate, .ascending).sort(\.$timestamp).sort(\.$serialNumber)
        
        if(image){
            //query = query.filter(\.$image)
            let wimage = try await query.paginate(for: req).map{
                img in FuelEntry.wimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, isOverride: img.isOverride, image: img.image == nil ? Data(): img.image, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: Date())
            }
            return try await wimage.encodeResponse(for: req)
        } else {
            let woimage = try await query.paginate(for: req).map{
                img in FuelEntry.woimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, image: nil, isOverride: img.isOverride, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: Date())
            }
            return try await woimage.encodeResponse(for: req)
        }
    }
    

    
    func create(req: Request) async throws -> [FuelEntry] {
        let fuelEntry = try req.content.decode([FuelEntry].self)
        for entry in fuelEntry {
            let data = entry.image ?? nil
            let length = data?.count
            if(data == nil || length == 0){
                entry.image = nil
            }
        }
        try await fuelEntry.create(on: req.db)
        return fuelEntry
    }
    

    
    func delete(req: Request) async throws -> HTTPStatus {
        guard let fuelEntry = try await FuelEntry.find(req.parameters.get("fuelEntryID"), on: req.db) else {
            throw Abort(.notFound)
        }
        try await fuelEntry.delete(on: req.db)
        return .noContent
    }
    
    @Sendable
    func getrpm(req: Request) async throws -> Response {
        let qstring = req.query
        let startdate = try parseDate(qstring.get(String?.self, at: "startdate") ?? "")
        let enddate = try parseDate(qstring.get(String?.self, at: "enddate") ?? "", false)
        let image = try qstring.get(Bool?.self, at: "image") ?? false
        let serial = try qstring.get(String?.self, at: "serial") ?? nil
        let tank = try qstring.get(String?.self, at: "tank") ?? nil
        let previous = try qstring.get(Bool?.self, at: "previous") ?? false
        
        
        var query = FuelEntry.query(on: req.db)
        if(image){
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$image)
                .field(\.$downloaded)
                .field(\.$loaddate)
                
                
        } else {
            query = query
                .field(\.$id)
                .field(\.$timestamp)
                .field(\.$userID)
                .field(\.$product)
                .field(\.$make)
                .field(\.$model)
                .field(\.$serialNumber)
                .field(\.$tankID)
                .field(\.$fuelAmount)
                .field(\.$fuelType)
                .field(\.$isOverride)
                .field(\.$latitude)
                .field(\.$longitude)
                .field(\.$downloaded)
                .field(\.$loaddate)
        }
        
        query = query.group(.and){
            grp in
            if( startdate != nil) {
                grp.filter(\.$loaddate >= startdate!)
            }
            if( enddate != nil) {
                grp.filter(\.$loaddate <= enddate!)
            }
            if( serial != nil) {
                grp.filter(\.$serialNumber == serial!)
            }
            if( tank != nil) {
                grp.filter(\.$tankID == tank!)
            }
            if(!previous){
                grp.filter(\.$pulldate == nil)
            }
            
        }
        query = query.sort(\.$loaddate, .ascending).sort(\.$timestamp).sort(\.$serialNumber)
        
        
        
        if(image){
            //query = query.filter(\.$image)
            let wimage = try await query.paginate(for: req).map{
                img in FuelEntry.wimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, isOverride: img.isOverride, image: img.image == nil ? Data(): img.image, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: Date())
                
            }
            return try await wimage.encodeResponse(for: req)
        } else {
            let woimage = try await query.paginate(for: req).map{
                img in FuelEntry.woimage(id: img.id, timestamp: img.timestamp, userID: img.userID, latitude: img.latitude, longitude: img.longitude, product: img.product, make: img.make, model: img.model, serialNumber: img.serialNumber, tankID: img.tankID, fuelAmount: img.fuelAmount, fuelType: img.fuelType, image: nil, isOverride: img.isOverride, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: Date())
            }
            return try await woimage.encodeResponse(for: req)
        }
    }
}

struct custMeta: Content {
    let per: Int
    let page: Int
    let total: Int
    let status: String?
}

struct PageRequest: Content {
    var page: Int
    var size: Int
    var status: String?
    // Add any other properties needed for pagination
    
    init(page: Int, size: Int, status: String? = nil) {
        self.page = page
        self.size = size
        self.status = status
    }
}