Seek Emails -Tableau Jobs

library(tidyverse)
library(gmailr)

# authorise gmailr

search_term <- "from:([email protected]) new jobs for tableau in Melbourne"
messageIDs <- messages(search = search_term, num_results = 5)

my_messages <- tibble(messageIDs) %>% 
  mutate(downloaded_data = map(messageIDs, ~.x$messages %>%
                                   modify_depth(1, "id") %>%
                                   as.vector() %>%
                                   map(message))) %>% 
  unnest(downloaded_data)
  
write_rds(my_messages, "rds files/downloaded emails.rds")
  
##################################
  
my_messages <- readRDS("rds files/downloaded emails.rds")


key_info <- my_messages %>% 
  mutate(id = map_chr(downloaded_data, ~gmailr::id(.x)),
         date = map_chr(downloaded_data, ~gmailr::date(.x)),
         date = lubridate::dmy_hms(date) %>% as.Date(),
         subject = map_chr(downloaded_data, ~gmailr::subject(.x)))


# from the downloaded data we also, most importantly, want to parse out the body of the email
# to see if we can possibly organise that into some kind of useful Excel table.

with_body_content <- key_info %>% 
  mutate(body_content = map(downloaded_data, ~.x$payload$parts[[1]]$parts[[1]]$body$data %>% 
                              RCurl::base64Decode(txt = .) %>% 
                              str_split("\r\n|\t") %>% 
                              unlist() %>% 
                              tibble %>% 
                              rename(text = 1) %>% 
                              filter(text != ""))) %>% 
  select(-downloaded_data)


header_cells <- c("SEEK Job Mail", 
                  "Hi Julian", 
                  "tableau in Melbourne",
                  "posted yesterday match your Saved Search:", 
                  "new jobs. Update your SEEK Profile",
                  "Manage your Saved Searches and subscription preferences", 
                  "https://www.seek.com.au/my-activity/saved-search",
                  "SEEK Profile Link",
                  "Update your SEEK Profile")


tidy_data_frame <- with_body_content %>% 
  mutate(body_content = map(body_content, ~filter(.x, !str_detect(text, paste(header_cells, collapse = "|"))))) %>% 
  unnest(body_content)


final_tidy <- tidy_data_frame %>% 
  separate_rows(text, sep = "Suburb: ") %>% 
  
  mutate(cell_content = case_when(str_detect(text, "Location:") ~ "Location",
                                  str_detect(text, "Advertiser:") ~ "Advertiser",
                                  str_detect(text, "Salary:") ~ "Salary",
                                  str_detect(text, "View this job at:") ~ "Link",
                                  str_detect(text, "Jobs you may have missed") ~ "Missed Jobs Start",
                                  TRUE ~ "Other")) %>% 
  
  mutate(cell_content = case_when(lead(cell_content) == "Location" ~ "Position",
                                  lead(cell_content) == "Advertiser" ~ "Location",
                                  lead(cell_content, 2) == "Advertiser" ~ "Position",
                                  TRUE ~ cell_content)) %>% 
  filter(cell_content != "Other") %>% 

  mutate(previous_email_jobs = if_else(str_detect(cell_content, "Missed Jobs Start"), 1L, NA_integer_)) %>% 
  group_by(id) %>% 
  fill(previous_email_jobs) %>% 
  filter(cell_content != "Missed Jobs Start") %>% 
  mutate(text = if_else(cell_content != "Position", 
                        str_replace(text, paste0(cell_content, ": "), ""), 
                        text)) %>% 
  mutate(position_row = if_else(cell_content == "Position", row_number(), NA_integer_),
         rank_of_position = if_else(!is.na(position_row), rank(position_row), NA_real_)) %>% 
  fill(rank_of_position) %>% 
  select(-position_row) %>% 
  spread(cell_content, text)


final_tidy %>% 
  writexl::write_xlsx("output/data.xlsx")