Echo Writes Code

handlers.rs

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use crate::errors::{ Result };
use crate::state::{ ServerState };
use axum::extract::{ Form, Path, State };
use axum::response::{ Html, Redirect };
use serde::{ Deserialize };
use std::sync::{ Arc };

#[derive(Debug, Deserialize)]
pub struct PageForm {
  slug: String,
  title: String,
  content: String,
  tags: String,

  #[serde(default, rename = "old-slug")]
  old_slug: String,
}

#[tracing::instrument]
pub async fn index(
  State(server_state): State<Arc<ServerState>>,
) -> Result<Html<String>> {
  let database = server_state.database();
  let response = server_state
    .renderer()
    .render_view_page(&database, "_index")?;

  Ok(Html(response))
}

#[tracing::instrument]
pub async fn new_page_form(
  State(server_state): State<Arc<ServerState>>,
  Form(form): Form<PageForm>,
) -> Result<Redirect> {
  let tags = form.tags.trim();

  let tags = if !tags.is_empty() {
    tags
      .trim()
      .split(",")
      .map(|tag| tag.trim())
      .map(|tag| tag.to_string())
      .collect::<Vec<_>>()
  } else {
    Vec::new()
  };

  server_state.database_mut()
    .save_page_content(&form.slug, &form.content)?
    .create_page_metadata(&form.slug, &form.title, &tags)?;

  let destination = format!("/page/view/{}", form.slug);
  let response = Redirect::to(&destination);
  Ok(response)
}

#[tracing::instrument]
pub async fn edit_page_form(
  State(server_state): State<Arc<ServerState>>,
  Path(slug): Path<String>,
  Form(form): Form<PageForm>,
) -> Result<Redirect> {
  let tags = form.tags.trim();

  let tags = if !tags.is_empty() {
    tags
      .split(",")
      .map(|tag| tag.trim())
      .map(|tag| tag.to_string())
      .collect::<Vec<_>>()
  } else {
    Vec::new()
  };

  server_state.database_mut()
    .save_page_content(&form.slug, &form.content)?
    .update_page_metadata(&form.old_slug, &form.slug, &form.title, &tags)?;

  let destination = format!("/page/view/{}", form.slug);
  let response = Redirect::to(&destination);
  Ok(response)
}

#[tracing::instrument]
pub async fn tagged_list(
  State(server_state): State<Arc<ServerState>>,
  Path(tag): Path<String>,
) -> Result<Html<String>> {
  let database = server_state.database();
  let response = server_state
    .renderer()
    .render_tagged_list(&database, &tag)?;

  Ok(Html(response))
}

#[tracing::instrument]
pub async fn tags_list(
  State(_server_state): State<Arc<ServerState>>,
) -> Result<Html<String>> {
  Ok(Html("".to_string()))
}

#[tracing::instrument]
pub async fn new_page(
  State(server_state): State<Arc<ServerState>>,
) -> Result<Html<String>> {
  let response = server_state
    .renderer()
    .render_new_page()?;

  Ok(Html(response))
}

#[tracing::instrument]
pub async fn edit_page(
  State(server_state): State<Arc<ServerState>>,
  Path(slug): Path<String>,
) -> Result<Html<String>> {
  let database = server_state.database();
  let response = server_state
    .renderer()
    .render_edit_page(&database, &slug)?;

  Ok(Html(response))
}

#[tracing::instrument]
pub async fn view_page(
  State(server_state): State<Arc<ServerState>>,
  Path(slug): Path<String>,
) -> Result<Html<String>> {
  let database = server_state.database();
  let response = server_state
    .renderer()
    .render_view_page(&database, &slug)?;

  Ok(Html(response))
}