---
title: "Deaths and Births"
output:
  prettydoc::html_pretty:
    toc: true
    theme: architect
    highlight: github
    includes:
      # in_header: header.html
vignette: >
  %\VignetteIndexEntry{Deaths and Births} 
  %\VignetteEngine{knitr::rmarkdown} 
  %\VignetteEncoding{UTF-8}
  %\VignetteDepends{kableExtra,magrittr,htmltools}
---

```{r setup,echo=FALSE, include=FALSE}
# setup chunk
NOT_CRAN <- identical(tolower(Sys.getenv("NOT_CRAN")),"true")
knitr::opts_chunk$set(purl = NOT_CRAN)
library(insee)

embed_png <- function(path, dpi = NULL) {
  meta <- attr(png::readPNG(path, native = TRUE, info = TRUE), "info")
  if (!is.null(dpi)) meta$dpi <- rep(dpi, 2)
  knitr::asis_output(paste0(
    "<img src='", path, "'",
    " width=", round(meta$dim[1] / (meta$dpi[1] / 96)),
    " height=", round(meta$dim[2] / (meta$dpi[2] / 96)),
    " />"
  ))}
```

```{r message=FALSE, warning=FALSE, include=FALSE}
library(kableExtra)
library(htmltools)
library(prettydoc)
```

```{r, echo = FALSE}
embed_png("death_birth.png")
```

```{r message=FALSE, warning=FALSE,eval=FALSE}

library(insee)
library(ggplot2)
library(dplyr)
library(magrittr)

insee_dataset = get_dataset_list()

list_idbank_selected = 
  get_idbank_list("DECES-MORTALITE", "NAISSANCES-FECONDITE") %>% 
  filter(FREQ == "M") %>% #monthly
  filter(REF_AREA == "FM") %>% #metropolitan territory
  filter(DEMOGRAPHIE %in% c("NAISS", "DECES"))

idbank_selected = list_idbank_selected %>% pull(idbank)

data = 
  get_insee_idbank(idbank_selected) %>% 
  split_title() %>% 
  mutate(period = case_when(DATE < "1975-01-01" ~ "1948 - 1974",
                            DATE >= "1975-01-01" & DATE < "2000-01-01" ~ "1975 - 1999",
                            DATE >= "2000-01-01" ~ "2000 - today"
                            ))

x_dates = seq.Date(from = as.Date("1940-01-01"), to = Sys.Date(), by = "5 years")
last_date = data %>% pull(DATE) %>% max()

ggplot(data, aes(x = DATE, y = OBS_VALUE, colour = TITLE_EN2)) +
  facet_wrap(~period, scales = "free_x", ncol = 1) +
  geom_line() +
  geom_point(size = 0.9) +
  ggtitle("Deaths and Births in France since 1948") +
  labs(subtitle = sprintf("Last update : %s", last_date)) +
  scale_x_date(breaks = x_dates, date_labels = "%Y") +
  theme(
    legend.position = "bottom",
    legend.title = element_blank(),
    axis.title.x = element_blank(),
    axis.title.y = element_blank()
    )

  
  
```