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

import Vapor
import FluentKit

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: index)
        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 parseDate(_ dateString: String, _ start: Bool = true) -> Date? {
        if(dateString.count == 0){
            return nil
        } else {
            let parts = dateString.split(separator: "-")
            let year = Int(parts[0])!
            let month = Int(parts[1])!
            let day = Int(parts[2])!
            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)
        }
    }
    
    @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, longitutde: 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())
            }
            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, longitutde: 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, downloaded: img.downloaded == nil ? false : img.downloaded!, loaddate: img.loaddate == nil ? nil : img.loaddate, pulldate: Date())
            }
            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)
                //.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(\.$loaddate, .ascending).sort(\.$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, longitutde: 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, longitutde: 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, 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)
        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
    }
}

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