# packages
library(metaDigitise)
library(magrittr)
library(tibble)
library(dplyr)
library(lubridate)
library(dpeatdecomposition)
library(dm)
library(RMariaDB)

1 Preparations

Connect to database

# connect to database
con <-
  RMariaDB::dbConnect(
    drv = RMariaDB::MariaDB(),
    dbname = "dpeatdecomposition",
    default.file = "~/my.cnf"
  )

# get database as dm object
dm_dpeatdecomposition <-
  dpeatdecomposition::dp_get_dm(con, learn_keys = TRUE)

Get most current IDs

id_last <- 
  list(
    id_dataset = 
      dm_dpeatdecomposition %>%
      dm::pull_tbl(datasets) %>%
      dplyr::pull(id_dataset) %>%
      tail(1),
    id_sample = 
      dm_dpeatdecomposition %>%
      dm::pull_tbl(samples) %>%
      dplyr::pull(id_sample) %>%
      tail(1),
    id_measurement = 
      dm_dpeatdecomposition %>%
      dm::pull_tbl(data) %>%
      dplyr::pull(id_measurement) %>%
      tail(1)
    ) %>%
  purrr::map(function(.x) {
    if(length(.x) == 0) {
      0L
    } else {
      .x
    }
  })

Create directories

dir_name <- "d18"
dir_source <- "../raw_data/data/d18"
dir_target <- paste0("../derived_data/", id_last$id_dataset + 1L)

if(!dir.exists(dir_target)) {
  dir.create(dir_target)
}

2 Data wrangling

2.1 dataset

datasets <- 
  tibble::tibble(
    id_dataset = id_last$id_dataset + 1L
  )

2.2 citations_to_datasets

citations_to_datasets <- 
  dplyr::bind_rows(
    db_template_tables$citations_to_datasets,
    tibble::tibble(
      id_dataset = datasets$id_dataset,
      id_citation = c("Hiroki.1996") 
    )
  )

2.3 samples

## mass remaining
samples2 <- 
  tibble::tibble(
    id_dataset = datasets$id_dataset[[1]],
    sample_type = "cellulose",
    sample_type2 = "cellulose filter tips Advantec No. 514A and No. 526",
    id_site = c(2, 4, 6, 7, 13, 3, 8, 10, 12, 1, 5, 9, 11, 14),
    mass_relative_mass = 1 - c(NA_real_, 0.58, 0.27, 0.52, 0.34, 0.53, 0.43, 0.75, 0.59, 0.37, 0.33, 0.03, 0.64, 0.07),
    mass_absolute = NA_real_,
    sample_microhabitat = c(rep("hummock", 5), rep("hollow", 4), NA, NA, "hollow", NA, NA),
    experimental_design = as.character(id_site),
    sampling_date = as.Date("1992-11-27"),
    sampling_year = lubridate::year(sampling_date),
    sampling_month = lubridate::month(sampling_date),
    sampling_day = lubridate::day(sampling_date),
    sample_depth_upper = 5,
    sample_depth_lower = 5,
    sample_treatment = "control",
    is_incubated = TRUE,
    incubation_environment = "peat",
    incubation_duration = lubridate::time_length(as.Date("1992-11-27") - as.Date("1992-04-28"), unit = "days"),
    sampling_longitude =
      "139°35'E" %>%
      sp::char2dms(chd = "°", chm = "'", chs = "''") %>%
      as.numeric(),
    sampling_latitude =
      "37°15'N" %>%
      sp::char2dms(chd = "°", chm = "'", chs = "''") %>%
      as.numeric()
    ) %>%
  dplyr::mutate(
    comment_samples = "Coordinates are only the approximate location of the study site, but not sampling points.",
    comment_samples = 
      paste0(comment_samples,
             dplyr::case_when(
               id_site %in% c(1, 11) ~ " Cellulose strips buried in peat along a stream.",
               id_site %in% c(5, 14) ~ " Cellulose strips buried in peat in a stream.",
               TRUE ~ ""
             )
      )
  )

# initial samples
samples1 <- 
  samples2 %>%
  dplyr::mutate(
    id_sample = seq_len(nrow(.)) + id_last$id_sample,
    id_sample_origin = id_sample,
    id_sample_parent = id_sample,
    id_sample_incubation_start = id_sample,
    mass_relative_mass = 1,
    incubation_duration = 0,
    sampling_date = as.Date("1992-04-28"),
    sampling_year = lubridate::year(sampling_date),
    sampling_month = lubridate::month(sampling_date),
    sampling_day = lubridate::day(sampling_date)
  )

# assign ids
samples2 <-
  samples2 %>%
  dplyr::mutate(
    id_sample = seq_len(nrow(.)) + max(samples1$id_sample),
    id_sample_origin = 
      dplyr::left_join(
        samples2 %>% dplyr::select(id_site),
        samples1 %>% dplyr::select(id_sample, id_site),
        by = "id_site"
      ) %>%
      dplyr::pull(id_sample),
    id_sample_parent = id_sample_origin,
    id_sample_incubation_start = id_sample_origin
  )


## peat properties

# order of id_site in plot x axes
id_sites <- c(2, 4, 6, 7, 13, 3, 8, 10, 12, 1, 5, 9, 11, 14)

samples3 <- 
  dplyr::bind_cols(
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig2a"))$processed_data %>%
      dplyr::select(y) %>%
      dplyr::rename(
        pH = "y"
      ),
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig2c"))$processed_data %>%
      dplyr::select(y) %>%
      dplyr::rename(
        C_relative_mass = "y"
      ),
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig2d"))$processed_data %>%
      dplyr::select(y) %>%
      dplyr::rename(
        N_relative_mass = "y"
      ),
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig2f"))$processed_data %>%
      dplyr::select(y) %>%
      dplyr::rename(
        ash_mass_relative_mass = "y"
      )
  ) %>%
  dplyr::mutate(
    C_absolute = NA_real_,
    N_absolute = NA_real_,
    ash_mass_absolute = NA_real_,
    id_site = id_sites,
    sampling_date = as.Date("1992-08-24"), #---note: the paper mentions two pH measurement dates in the text, but does not clarify what values in the plot represent. I here assume these are values from the first sampling date.
    sample_depth_upper = 0,
    sample_depth_lower = 5
  )

# water content
samples3 <- 
  dplyr::bind_rows(
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig3a"))$processed_data,
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig3b"))$processed_data,
    readRDS(paste0(dir_source, "/raw/caldat/Hiroki.1996-Fig3c"))$processed_data
  ) %>%
  dplyr::select(id, x, y) %>%
  dplyr::mutate(
    id_site = 
      id %>% 
      stringr::str_extract(pattern = "\\d+$") %>% 
      as.numeric(),
    x = as.Date(c(rep(c("1992-04-28", "1992-06-22", "1992-08-24", "1992-10-27"), 2), c("1992-04-28", "1992-06-22", "1992-10-27"), rep(c("1992-04-28", "1992-06-22", "1992-08-24", "1992-10-27"), 11))),
    y = y/(y + 1)
  ) %>%
  dplyr::rename(
    sampling_date = "x",
    water_mass_relative_mass = "y"
  ) %>% 
  dplyr::mutate(
    water_mass_absolute = NA_real_,
    mass_absolute = NA_real_,
    sample_depth_upper = 0, #---note: the text says only that a 5 cm deep layer was sampled.
    sample_depth_lower = 5, #---note: the text says only that a 5 cm deep layer was sampled.
  ) %>%
  dplyr::full_join(
    samples3,
    by = c("id_site", "sample_depth_upper", "sample_depth_lower", "sampling_date")
  ) %>%
  dplyr::arrange(sampling_date) %>%
  dplyr::mutate(
    sample_wet_mass_absolute = NA_real_,
    id_dataset = datasets$id_dataset[[1]],
    id_sample = seq_len(nrow(.)) + max(samples2$id_sample),
    id_sample_origin = id_sample,
    id_sample_parent = id_sample,
    sampling_year = lubridate::year(sampling_date),
    sampling_month = lubridate::month(sampling_date),
    sampling_day = lubridate::day(sampling_date),
    sample_type = "peat",
    is_incubated = FALSE,
    incubation_duration = 0,
    sample_treatment = "control",
    comment_samples = "Coordinates are only the approximate location of the study site, but not sampling points.",
    comment_samples = 
      paste0(comment_samples,
             dplyr::case_when(
               id_site %in% c(1, 11) ~ " Sampling point: along a stream.",
               id_site %in% c(5, 14) ~ " Sampling point: in a stream.",
               TRUE ~ ""
             )
      )
  ) %>%
  dplyr::full_join(
    samples1 %>%
      dplyr::select(id_site, sample_microhabitat, sampling_longitude, sampling_latitude, experimental_design),
    by = "id_site"
  )


## combine
samples <- 
  dplyr::bind_rows(
    db_template_tables$samples,
    samples1 %>%
      dplyr::mutate(
        type = "samples1"
      ),
    samples2 %>%
      dplyr::mutate(
        type = "samples2"
      ),
    samples3 %>%
      dplyr::mutate(
        type = "samples3"
      )
  )

2.4 samples_to_samples

samples_to_samples <- 
  samples %>%
  dplyr::filter(! id_sample %in% id_sample_origin) %>%
  dplyr::mutate(
    transition_description =
      dplyr::case_when(
        type %in% c("samples2") ~ "wait",
        TRUE ~ NA_character_
      )
  ) %>%
  dplyr::select(id_sample_parent, id_sample, transition_description) %>%
  dplyr::rename(
    id_sample_child = "id_sample"
  )

2.5 data

d1 <- 
  samples1 %>%
  tidyr::pivot_longer(
    cols = dplyr::all_of(c("mass_absolute", "mass_relative_mass")),
    names_to = "attribute_name",
    values_to = "value"
  ) %>%
  dplyr::mutate(
    id_measurement = seq_len(nrow(.)) + id_last$id_measurement,
    id_measurement_numerator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "mass_absolute"]
          },
          "P_relative_mass" =,
          "N_relative_mass" =,  
          "K_relative_mass" =,
          "C_relative_mass" =,
          "ash_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == paste0(stringr::str_remove(attribute_name[[i]], "_relative_mass$"), "_absolute")]
          },
          NA_integer_
        )
      }),
    id_measurement_denominator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "mass_relative_mass" =,
          "P_relative_mass" =,
          "N_relative_mass" =,  
          "K_relative_mass" =,
          "C_relative_mass" =,
          "ash_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "mass_absolute"]
          },
          NA_integer_
        )
      }),
    value_type = "mean",
    sample_size = NA_integer_
  )

d2 <- 
  samples2 %>%
  tidyr::pivot_longer(
    cols = dplyr::all_of(c("mass_absolute", "mass_relative_mass")),
    names_to = "attribute_name",
    values_to = "value"
  ) %>%
  dplyr::mutate(
    id_measurement = seq_len(nrow(.)) + max(d1$id_measurement),
    id_measurement_numerator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "mass_absolute"]
          },
          NA_integer_
        )
      }),
    id_measurement_denominator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "mass_relative_mass" = {
            d1$id_measurement[d1$id_sample == id_sample_origin[[i]] & d1$attribute_name == "mass_absolute"]
          },
          NA_integer_
        )
      }),
    value_type = "mean",
    sample_size = NA_integer_
  )


d3 <- 
  samples3 %>%
  tidyr::pivot_longer(
    cols = dplyr::all_of(c("mass_absolute", "sample_wet_mass_absolute", "water_mass_relative_mass", "water_mass_absolute", "pH", "C_relative_mass", "N_relative_mass", "ash_mass_relative_mass", "C_absolute", "N_absolute", "ash_mass_absolute")),
    names_to = "attribute_name",
    values_to = "value"
  ) %>%
  dplyr::mutate(
    id_measurement = seq_len(nrow(.)) + max(d2$id_measurement),
    id_measurement_numerator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "N_relative_mass" =,  
          "C_relative_mass" =,
          "ash_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == paste0(stringr::str_remove(attribute_name[[i]], "_relative_mass$"), "_absolute")]
            },
          "water_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "water_mass_absolute"]
          },
          NA_integer_
        )
      }),
    id_measurement_denominator =
      purrr::map_int(seq_len(nrow(.)), function(i) {
        switch(
          attribute_name[[i]],
          "water_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "sample_wet_mass_absolute"]
          },
          "N_relative_mass" =,  
          "C_relative_mass" =,
          "ash_mass_relative_mass" = {
            id_measurement[id_sample == id_sample[[i]] & attribute_name == "mass_absolute"]
          },
          "mass_relative_mass" = {
            d1$id_measurement[d1$id_sample == id_sample_origin[[i]] & d1$attribute_name == "mass_absolute"]
          },
          NA_integer_
        )
      }),
    value_type = "mean",
    sample_size = NA_integer_
  )


# combine
d <- 
  dplyr::bind_rows(
    db_template_tables$data,
    d1,
    d2,
    d3
  ) %>%
  dplyr::select(dplyr::all_of(colnames(db_template_tables$data)))

2.6 experimental_design_format

experimental_design_format <- 
  tibble::tibble(
    id_dataset = datasets$id_dataset,
    file = paste0(id_last$id_dataset + 1L, "/experimental_design_format.csv"),
    experimental_design_description = "`id_site`: An identifier for the site."
  )

# csv file to export
experimental_design_format2 <- 
  samples %>%
  dplyr::filter(! is.na(experimental_design)) %>%
  dplyr::filter(! duplicated(experimental_design)) %>%
  dplyr::select(experimental_design, id_site)

# export
write.csv(experimental_design_format2, paste0(dir_target, "/experimental_design_format.csv"), row.names = FALSE)

3 Export to database

# list all tables
dm_insert_in <-
  list(
    datasets = 
      datasets %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$datasets))),
    samples = 
      samples %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$samples))),
    data = 
      d %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$data))),
    samples_to_samples = 
      samples_to_samples %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$samples_to_samples))),
    citations_to_datasets = 
      citations_to_datasets %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$citations_to_datasets))),
    experimental_design_format = 
      experimental_design_format %>% 
      dplyr::select(dplyr::all_of(colnames(dm_dpeatdecomposition$experimental_design_format)))
  )

# check whether all column names as present in table attributes
all_column_names <- 
  purrr::map(dm_insert_in, colnames) %>%
  unlist() %>%
  unique()

if(! all(all_column_names %in% (dm_dpeatdecomposition %>% dm::pull_tbl(attributes) %>% dplyr::pull(attribute_name)))) {
  cond <- purrr::map_lgl(all_column_names, function(.x) ! .x %in% (dm_dpeatdecomposition %>% dm::pull_tbl(attributes) %>% dplyr::pull(attribute_name)))
  RMariaDB::dbDisconnect(con)
  stop(paste0("New `attribute_name`s discovered: ", paste(all_column_names[cond], collapse = ", ")))
}

all_data_attributes <- unique(dm_insert_in$data$attribute_name)

if(! all(all_data_attributes %in% (dm_dpeatdecomposition %>% dm::pull_tbl(attributes) %>% dplyr::pull(attribute_name)))) {
  RMariaDB::dbDisconnect(con)
  cond <- purrr::map_lgl(all_data_attributes, function(.x) ! .x %in% (dm_dpeatdecomposition %>% dm::pull_tbl(attributes) %>% dplyr::pull(attribute_name)))
  stop(paste0("New `attribute_name`s discovered: ", paste(all_data_attributes[cond], collapse = ", ")))
}


# filter empty tables
dm_insert_in_check <-
  dm_insert_in[purrr::map_lgl(dm_insert_in, function(x) nrow(x) > 0)] %>%
  dm::as_dm() %>%
  dp_dm_add_keys(dm_dpeatdecomposition)

# copy into dm_pmird
for(i in seq_along(dm_insert_in)) {
  RMariaDB::dbAppendTable(con, name = names(dm_insert_in)[[i]], value = dm_insert_in[[i]])
}

RMariaDB::dbDisconnect(con)

4 Notes