#' Teeregistri WFS ja maaameti andmete 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).
#' 4. Polügoniseerime riigiteedevõrgu.
#' 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
#' @export
#' @examples
#' \dontrun{
#'
#' conf <- ruut::get_config()
#' minu_teed_loomine(conf = conf)
#' }
minu_teed_loomine <- function(conf = NULL) {
  ## ------------- muutujad ja teisendused ---------------
  # source("R/ajutised_muutujad.R")
  vars <- ajutised_muutujad(conf = conf)
  conf <- vars$conf

  # conf$schema <- "minu_teed"
  # conf$table <- "zzz"
  # output <- ruut::construct_to_gpkg_output_postgres_str(conf = conf, geometry_field = "geom")
  # conf$schema <- "eesti"
  # conf$table <- "e_501_tee_j"
  # cat(paste(paste0('"', ruut::db_table_colnames(conf = conf)$column_name, '"'), collapse = ","))


  ## -------- 1.1 Kontrollime andmebaasis vajalike tabelite olemasolu ----------
  conf$schema <- "minu_teed"
  tbl_names <- ruut::db_schema_tablenames(conf = conf)
  if (!all(c("teedevork_riigiteed_osadena", "eesti", "teedevork") %in% tbl_names)) {
    cat("\n------------------\nPuuduvad vajalikud andmebaasitabelid.\n")
    return(NULL)
  }

  ## -------------------- 1.1 Loeme eesti kontuurjoone -------------------------
  # ruut::qgis_algorithm_search_by_word("lines")
  algorithm <- "native:polygonstolines"
  # ruut::qgis_show_help(algorithm = algorithm)
  conf$schema <- "minu_teed"
  conf$table <- "eesti"
  input <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, geometry_type = "Polygon", srid = 3301,
    checkPrimaryKeyUnicity = TRUE, key = "fid", geometry_field = "geom"
  )
  output <- vars$tmp_gpkg_file_output_1
  str <- sprintf("{ 'INPUT' : '%s', 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", output))

  ## ------------------------- 1.2 Riigi teed osadena ---------------------------
  ## 4.2 Eemaldame riigiteedest rambid.
  algorithm <- "native:extractbyattribute"
  # ruut::qgis_show_help(algorithm = algorithm)
  conf$schema <- "minu_teed"
  conf$table <- "teedevork_riigiteed_osadena"
  input <- ruut::construct_to_gpkg_output_postgres_str(
    conf = conf, geometry_type = "MultiLineString", srid = 3301,
    checkPrimaryKeyUnicity = TRUE, key = "id", geometry_field = "geom"
  )
  output <- vars$tmp_gpkg_file_output_2
  str <- sprintf("{ 'FIELD' : 'tyyp', 'INPUT' : '%s', 'OPERATOR' : 5, 'OUTPUT' : '%s', 'VALUE' : '30' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", output))


  ## ------------- 1.3 Riigiteede ja eesti kontuuri ühendamine -----------------
  ## 4.3 Enne polügoniseerimist ühendame eesti kontuuri ja teedevõrgu üheks.
  # ruut::qgis_algorithm_search_by_word("merge")
  algorithm <- "native:mergevectorlayers"
  # ruut::qgis_show_help(algorithm = algorithm)
  vars$layer_1 <- vars$tmp_gpkg_file_input_1
  vars$layer_2 <- vars$tmp_gpkg_file_input_2
  output <- vars$tmp_gpkg_file_output_3
  cmd <- sprintf(
    "qgis_process run native:mergevectorlayers --CRS='epsg:3301' --LAYERS='%s' --LAYERS='%s' --OUTPUT='%s' ",
    vars$layer_1, vars$layer_2, output
  )
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", output))

  ## -------------------- 1.4 Teeme veergude valiku ----------------------------
  # cat(paste(paste0('--FIELDS=\'', ruut::db_table_colnames(conf = conf)$column_name, '\''), collapse = " "))
  # cat(paste(paste0('--COLUMN=\'', ruut::db_table_colnames(conf = conf)$column_name, '\''), collapse = " "))
  # ruut::qgis_algorithm_search_by_word("retain")
  # algorithm <- "native:deletecolumn"
  algorithm <- "native:retainfields"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- vars$tmp_gpkg_file_input_3
  output <- vars$tmp_gpkg_file_output_4
  cmd <- sprintf("qgis_process run %s --FIELDS='fid' --INPUT='%s' --OUTPUT='%s' ", algorithm, input, output)
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", output))

  ## ----------------------- 1.5 Polügoniseerimine -----------------------------
  ## 4.4 Polügoniseerime saadud riigiteedevõrgu. Tekib teedega piiratud polügoonid.
  # ruut::qgis_algorithm_search_by_word("Polygonize")
  algorithm <- "native:polygonize"
  # ruut::qgis_show_help(algorithm = algorithm)
  input <- vars$tmp_gpkg_file_input_4
  output <- vars$tmp_gpkg_file_output_5
  str <- sprintf("{ 'INPUT' : '%s', 'KEEP_FIELDS' : False, 'OUTPUT' : '%s' }", input, output)
  cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  system(cmd)

  ## ------------------ 1.4 Copy temp gpkg file to postgis ---------------------
  conf$schema <- "minu_teed"
  conf$table <- "teedevork_riigiteed_a"
  PG <- ruut::construct_ogr2ogr_PG_connect_str(conf = conf)
  cmd <- sprintf("ogr2ogr -progress --config PG_USE_COPY YES -f PostgreSQL %s -lco DIM=2 %s %s -overwrite -nlt %s -lco GEOMETRY_NAME=geom -lco FID=id -nln %s.%s -nlt PROMOTE_TO_MULTI", PG, vars$tmp_gpkg_file, vars$layer_5, "POLYGON", conf$schema, conf$table)
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", conf$table))








  ## ------------------ Teedevõrgu polügoniseerimine ------------------

  ## 4.5 Copy temp gpkg file to postgis.
  conf$schema <- "minu_teed"
  conf$table <- "teedevork_riigiteed_a"
  PG <- ruut::construct_ogr2ogr_PG_connect_str(conf = conf)
  cmd <- sprintf("ogr2ogr -progress --config PG_USE_COPY YES -f PostgreSQL %s -lco DIM=2 %s %s -overwrite -nlt %s -lco GEOMETRY_NAME=geom -lco FID=fid -nln %s.%s -nlt PROMOTE_TO_MULTI", PG, vars$tmp_gpkg_file, vars$layer_4, "MULTIPOLYGON", conf$schema, conf$table)
  system(cmd)
  cat(sprintf("\n-------------\nLoodi andmebaas '%s'.\n", conf$table))

  # ## =================== !!!!!!!!!!!!!! POOLELI !!!!!!!!!!!! =======================
  #
  # ## 4.2 Lõikame Eesti kaardist polügoniseerime riigiteedevõrgu välja.
  # ## Tekib ümber Eesti raam, mis tuleb jagada kuidagi transporditsoonideks.
  # # ruut::qgis_algorithm_search_by_word("Difference")
  # algorithm <- "native:difference"
  # # ruut::qgis_show_help(algorithm = algorithm)
  # conf$schema <- "minu_teed"
  # conf$table <- "eesti"
  # input <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_type = "Polygon", srid = 3301,
  #   checkPrimaryKeyUnicity = TRUE, key = "fid", geometry_field = "geom"
  # )
  # conf$schema <- "minu_teed"
  # conf$table <- "riigiteedevork_a"
  # overlay <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_type = "Polygon", srid = 3301,
  #   checkPrimaryKeyUnicity = TRUE, key = "fid", geometry_field = "geom"
  # )
  # conf$schema <- "minu_teed"
  # conf$table <- "riigiteedevork_xxx"
  # output <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_field = "geom", key = "fid"
  # )
  # str <- sprintf("{ 'INPUT' : '%s', 'OUTPUT' : '%s', 'OVERLAY' : '%s' }", input, output, overlay)
  # cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  # system(cmd)
  #
  #
  # ## 4.3 Kuna polügoniseeritud pinnad ei olnud täiuslikud, siis teostame
  # ## polügoniseeriist veelkorra. Selleks lõikame esmalt teedevõrgust
  # ## tekkinud raamiga need teed mis jäävad raamis sisse.
  # # ruut::qgis_algorithm_search_by_word("Intersection")
  # algorithm <- "native:intersection"
  # # ruut::qgis_show_help(algorithm = algorithm)
  # conf$schema <- "minu_teed"
  # conf$table <- "riigiteedevork"
  # input <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_type = "MultiLineString", srid = 3301,
  #   checkPrimaryKeyUnicity = TRUE, key = "fid", geometry_field = "geom"
  # )
  # conf$schema <- "minu_teed"
  # conf$table <- "riigiteedevork_xxx"
  # overlay <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_type = "MultiPolygon", srid = 3301,
  #   checkPrimaryKeyUnicity = TRUE, key = "fid", geometry_field = "geom"
  # )
  # conf$schema <- "minu_teed"
  # conf$table <- "riigiteedevork_xxx1"
  # output <- ruut::construct_to_gpkg_output_postgres_str(
  #   conf = conf, geometry_field = "geom"
  # )
  # str <- sprintf("{ 'INPUT' : '%s', 'INPUT_FIELDS' : [], 'OUTPUT' : '%s', 'OVERLAY' : '%s', 'OVERLAY_FIELDS' : [], 'OVERLAY_FIELDS_PREFIX' : '' }", input, output, overlay)
  # cmd <- ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
  # system(cmd)
}