package com.ICM.coordenadasRutaAPI.controllers;

import com.ICM.coordenadasRutaAPI.models.CoordenadasModel;
import com.ICM.coordenadasRutaAPI.RequestData.CoordenadasDTOtxt;
import com.ICM.coordenadasRutaAPI.services.CoordenadasService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.InputStreamResource;
import org.springframework.data.domain.Page;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Optional;


@RestController
@RequestMapping("api/coordenadas")
public class CoordenadasController {
    @Autowired

    CoordenadasService coordenadasService;

    @GetMapping("/ruta/{ruta}")
    public List<CoordenadasModel> GetxCoordenadas(@PathVariable Long ruta) {
        return coordenadasService.GetxRutas(ruta);
    }

    @GetMapping("/conteoPaginas/{id}")
    public Long countPages(@PathVariable Long id){
        return coordenadasService.countPages(id);
    }

    @GetMapping("/cxr/{ruta}")
    public Page<CoordenadasModel> obtenerCoordenadasPaginadas(
            @PathVariable Long ruta,
            @RequestParam(defaultValue = "1") int pageNumber,
            @RequestParam(defaultValue = "6") int pageSize
    ) {
        return coordenadasService.GetxRutasP(ruta, pageNumber, pageSize);
    }

    /***
     *
     * Warning:
     * No tocar ni editar nada de esta seccion
     *
     */
    /* Paginado TXT */
    @GetMapping("/cxrp/{ruta}")
    public Page<CoordenadasDTOtxt> obtenerCoordenadasPaginadastxt(
            @PathVariable Long ruta,
            @RequestParam(defaultValue = "1") int pageNumber,
            @RequestParam(defaultValue = "4") int pageSize
    ) {
        return coordenadasService.GetxRutasPtxt(ruta, pageNumber, pageSize);
    }
    /*
    Definitivo
     */
    @GetMapping("/cxrp/{dispositivo}/download")
    public ResponseEntity<Object> descargarCoordenadasTxt(
            @PathVariable Long dispositivo,
            @RequestParam(defaultValue = "1") int pageNumber,
            @RequestParam(defaultValue = "4") int pageSize
    ) {
        Page<CoordenadasDTOtxt> coordenadasPage = coordenadasService.GetxRutasPtxt(dispositivo, pageNumber, pageSize);

        // Convertir las coordenadas a un archivo de texto
        String contenidoTxt = convertirCoordenadasAString(coordenadasPage);

        InputStream inputStream = new ByteArrayInputStream(contenidoTxt.getBytes(StandardCharsets.UTF_8));

        InputStreamResource inputStreamResource = new InputStreamResource(inputStream);

        HttpHeaders headers = new HttpHeaders();
        headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=coordenadas.txt");

        return ResponseEntity.ok()
                .headers(headers)
                .contentType(MediaType.parseMediaType("text/plain"))
                .body(inputStreamResource);
    }

    private String convertirCoordenadasAString(Page<CoordenadasDTOtxt> coordenadasPage) {
        StringBuilder stringBuilder = new StringBuilder();
        coordenadasPage.forEach(coordenada -> {
            stringBuilder.append(coordenada.getCoordenadas()).append(", ");
            stringBuilder.append(coordenada.getRdo()).append(", ");
            stringBuilder.append(coordenada.getNsv()).append(", ");
            stringBuilder.append(coordenada.getCodv()).append(", ");
            stringBuilder.append(coordenada.getCods()).append("\n");
        });
        return stringBuilder.toString();
    }
    /* --- FIN  -- */
    /* */

    /*  http download chunk */

    /***
     *
     * End Warning:
     *
     *
     */

    // CRUD

    @GetMapping
    public List<CoordenadasModel> GetAll (){
        return coordenadasService.Get();
    }

    @GetMapping("/{id}")
    public ResponseEntity<CoordenadasModel> GetById(@PathVariable Long id){
        Optional<CoordenadasModel> paises = coordenadasService.GetById(id);
        return new ResponseEntity<>(paises.get(), HttpStatus.OK);
    }

    @PostMapping
    public ResponseEntity<CoordenadasModel> Save(@RequestBody CoordenadasModel coordenadasModel){
        CoordenadasModel ccoordenadas = coordenadasService.Save(coordenadasModel);
        return new ResponseEntity<>(ccoordenadas, HttpStatus.CREATED);
    }

    @PutMapping("/{id}")
    public ResponseEntity<CoordenadasModel> Edit(@PathVariable Long id, @RequestBody CoordenadasModel coordenadasModel){
        CoordenadasModel ecoordenada = coordenadasService.Edit(id, coordenadasModel);
        if (ecoordenada!=null){
            return new ResponseEntity<>(ecoordenada, HttpStatus.OK);
        }
        return new ResponseEntity<>(HttpStatus.NOT_FOUND);
    }

    @DeleteMapping("/{id}")
    public ResponseEntity<CoordenadasModel> Delete(@PathVariable Long id){
        coordenadasService.Delete(id);
        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
    }
}