#' Teeregistri WFS ja maaameti oma teeandmete 'minu_teed' loomine
#'
#' 1. Põhi-, kõrval ja tugimaanteedest ning rambid moodustatakse uus andmebaas 'riigiteedevork'.
#' 2. Ilma teenumbrita kohalike teede andmebaasi 'numbrita_kohalik_tee' loomine.
#' 3. Eesti kaart ainult suurte saartega (üle 10km2).
#' Eesti avaandmete \url{https://avaandmed.eesti.ee/datasets?emsId=35} teabevärava kaudu teederegistri WFS (Web Feature Service) andmete eksportimine postgisandmebaasi. WFS andmestiku kirjeldus: \url{https://teeregister-api.mnt.ee/teenus/wfs?request=GetCapabilities&service=WFS}
#'
#' @param conf A list() of configuration variables. Default values \code{\link[ruut]{get_config}}.
#' @return No output.
#' @seealso [ruut::get_config()], [ruut::copy_shp_to_db()], [estmap::teeregister_wfs()]
#' @keywords postgis, maps, WFS, OSM
#' @export
#' @examples
#' \dontrun{
#'
#' conf <- ruut::get_config()
#' minu_teed_loomine(conf = conf)
#' }
minu_teed_loomine <- function(conf = NULL) {
  ## ------------- muutujad ja teisendused ---------------
  if (is.null(conf)) {
    conf <- ruut::get_config()
    conf$schema <- "teeregister_wfs"
  }
  ## Defineerime ajutised failid ja muutujad.
  tmp_dir <- tempdir() # ajutine kataloog
  obj <- "demo"
  tmp_gpkg_file <- sprintf("%s/%s.gpkg", tmp_dir, obj) # ajutine gpkg fail
  conf$gpkg_home <- tmp_dir
  conf$gpkg_file <- obj
  conf$primary_key <- "id"
  ## Loome lingid gpkg ajutistest tabelitest lugemiseks ja kirjutamiseks
  conf$gpkg_table <- "test_layer_3"
  tmp_gpkg_file_output_3 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = F)
  tmp_gpkg_file_input_3 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = T)
  conf$gpkg_table <- "test_layer_2"
  tmp_gpkg_file_output_2 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = F)
  tmp_gpkg_file_input_2 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = T)
  conf$gpkg_table <- "test_layer_1"
  tmp_gpkg_file_output_1 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = F)
  tmp_gpkg_file_input_1 <- ruut::construct_to_gpkg_output_file_str(conf = conf, is_input_str = T)


  ## =================== 1. 'riigiteedevõrk' =======================
  ## Teeregistri avaandmete kihtide lugemine
  # Loe instaleeritud tabelid andmebaasis
  installed_tables <- ruut::db_schema_tablenames(conf = conf)
  ## Kontrollime ühendatavate andmebaaside olemasolu.
  if (all(c("pohimaantee", "ramp", "tugimaantee", "korvalmaantee") %in% installed_tables)) {

    ## 1. Ühendame riigiteed üheks võrgustikuks
    # ruut::qgis_algorithm_search_by_word("merge")
    algorithm <- "native:mergevectorlayers"
    # ruut::qgis_show_help(algorithm = algorithm)
    conf$table <- "pohimaantee"
    layer_1 <- ruut::construct_to_gpkg_output_postgres_str(
      conf = conf, geometry_type = "MultiLineString", srid = 3301,
      checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geometry"
    )
    conf$table <- "ramp"
    layer_2 <- ruut::construct_to_gpkg_output_postgres_str(
      conf = conf, geometry_type = "MultiLineString", srid = 3301,
      checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geometry"
    )
    conf$table <- "tugimaantee"
    layer_3 <- ruut::construct_to_gpkg_output_postgres_str(
      conf = conf, geometry_type = "MultiLineString", srid = 3301,
      checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geometry"
    )
    conf$table <- "korvalmaantee"
    layer_4 <- ruut::construct_to_gpkg_output_postgres_str(
      conf = conf, geometry_type = "MultiLineString", srid = 3301,
      checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geometry"
    )
    conf$schema <- "minu_teed"
    # New schema
    ruut::db_create_new_schema(conf = conf)
    conf$table <- "riigiteedevork"
    output <- ruut::construct_to_gpkg_output_postgres_str(conf = conf, geometry_field = "geom", geometry_type = "MultiLineString", srid = 3301, checkPrimaryKeyUnicity = FALSE, key = "fid")
    cmd <- sprintf(
      "qgis_process run native:mergevectorlayers --CRS='epsg:3301' --LAYERS='%s' --LAYERS='%s' --LAYERS='%s' --LAYERS='%s' --OUTPUT='%s' ",
      layer_1, layer_2, layer_3, layer_4, output
    )
    system(cmd)
    cat(sprintf("\n%s\n-------------\n", "Loodi teedev\U00F5rgu andmebaas 'riigiteedevork'.\n"))
  }


  ## =================== 2. 'numbrita_kohalik_tee' =======================
  ## 1. Sorteerime välja ETAK andmebaasist "e_501_tee_j" kojalikud teed (s.o tyyp IN (50,60,))
  ## 1.1 Esmalt sorteerime >= 50
  # ruut::qgis_algorithm_search_by_word("extract")
  algorithm <- "native:extractbyattribute"
  # ruut::qgis_show_help(algorithm = algorithm)
  conf$schema <- "eesti"
  conf$table <- "e_501_tee_j"
  input <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, geometry_type = "MultiLineString", srid = 3301,
    checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geom"
  )
  output <- tmp_gpkg_file_output_1
  str <- sprintf("{ 'FIELD' : 'tyyp', 'INPUT' : '%s', 'OPERATOR' : 3, 'OUTPUT' : '%s', 'VALUE' : '50' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)
  ## 1.2 Seejärel sorteerime <= 60
  input <- tmp_gpkg_file_input_1
  output <- tmp_gpkg_file_output_2
  str <- sprintf("{ 'FIELD' : 'tyyp', 'INPUT' : '%s', 'OPERATOR' : 5, 'OUTPUT' : '%s', 'VALUE' : '60' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)
  ## 1.3 Seejärel sorteerime '<= 60'tee'=NULL (ilma teenumbrita ehk kvartalissisesed).
  ## Järelejäävad teed on tegelikult 'muud teed'.
  input <- tmp_gpkg_file_input_2
  conf$schema <- "minu_teed"
  # New schema
  ruut::db_create_new_schema(conf = conf)
  conf$table <- "numbrita_kohalik_tee"
  output <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, geometry_type = "MultiLineString", srid = 3301,
    checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geom"
  )
  str <- sprintf("{ 'FIELD' : 'tee', 'INPUT' : '%s', 'OPERATOR' : 8, 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)
  cat(sprintf("\n%s\n-------------\n", "Loodi andmebaas 'numbrita_kohalik_tee'.\n"))


  ## =================== 3. 'eesti' =======================
  ## 3.1 Maakondadest Eesti maismaapiir
  # ruut::qgis_algorithm_search_by_word("dissolve")
  algorithm <- "native:dissolve"
  # ruut::qgis_show_help(algorithm = algorithm)
  conf$schema <- "maaamet"
  conf$table <- "maakond"
  input <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, geometry_type = "MultiPolygon", srid = 3301,
    checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geom"
  )
  output <- tmp_gpkg_file_output_1
  str <- sprintf("{ 'FIELD' : [], 'INPUT' : '%s', 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)

  ## 3.2 Kustutame ebaolulised väljad
  # ruut::qgis_algorithm_search_by_word("delete")
  algorithm <- "native:deletecolumn"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- tmp_gpkg_file_input_1
  output <- tmp_gpkg_file_output_2
  cmd <- sprintf("qgis_process run %s  --COLUMN='mnimi' --COLUMN='mkood' --COLUMN='fid' --INPUT='%s' --OUTPUT='%s' ", algorithm, input, output)
  system(cmd)

  ## 3.3 Jaotame multipart polügooni singlepart polügoonideks.
  # ruut::qgis_algorithm_search_by_word("multipart")
  algorithm <- "native:multiparttosingleparts"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- tmp_gpkg_file_input_2
  output <- tmp_gpkg_file_output_3
  str <- sprintf("{ 'INPUT' : '%s', 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)

  ## 3.4 Lisame pindade pindalad ja perimeetri
  # ruut::qgis_algorithm_search_by_word("columns")
  algorithm <- "qgis:exportaddgeometrycolumns"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- tmp_gpkg_file_input_3
  output <- tmp_gpkg_file_output_1
  str <- sprintf("{ 'CALC_METHOD' : 0, 'INPUT' : '%s', 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)

  ## 3.5 Eemaldame objektid mille pindala on väiksem kui 10km2 (väikesaared)
  # ruut::qgis_algorithm_search_by_word("extract")
  algorithm <- "native:extractbyattribute"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- tmp_gpkg_file_input_1
  conf$schema <- "minu_teed"
  conf$table <- "eesti"
  output <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, key = "fid", geometry_field = "geom"
  )
  str <- sprintf("{ 'FIELD' : 'area', 'OPERATOR' : 2, 'VALUE' : '10000000', 'INPUT' : '%s', 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)



}