---
output: html_document
runtime: shiny
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)

pacman::p_load(
  tidyverse,
  gtrendsR,
  sf,
  leaflet
)
```

# Tendencias de México

```{r eruptions, echo=FALSE}

statesJSON <- st_read("mx-states.geo.json")

```

```{r}

inputPanel(
  textInput(
    inputId="keyword",
    label="Término de búsqueda:",
    value="Google I/O",
    placeholder="Bitcoin"
  )
)

```

```{r states}

colors <- colorNumeric("RdYlBu",domain=states$hits)

renderLeaflet({
  # 23.6345° N, 102.5528° W
  leaflet(states) %>%
    addTiles() %>%
    setView(lat=23.6345,lng=-102.5528,zoom=4) %>%
    addPolygons(
      weight=1,
      color="#232323",
      opacity=0.8,
      fillOpacity=0.8,
      fillColor=colors(states$hits)
    )
})
```

```{r statesJSON}

renderTable({
  trends <- gtrends(
    keyword=input$keyword,
    geo="MX",
    tz="America/Mexico_City",
    time="now 7-d"
  )
  trends <- trends$interest_by_region
  trends$name <- trends$location
  trends <- trends %>%
    mutate(
      name=case_when(
       name=="State of Mexico" ~ "Estado De Mexico",
       name=="Mexico City" ~ "Ciudad De Mexico",
       !is.na(name) ~ name
      )
    )
  states <- statesJSON %>% left_join(trends,by="name")
  trends %>% select(-name)
})
```