Initial import

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

5 files changed, 126 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+/target
+Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
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+++ b/Cargo.toml
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+[package]
+name = "water-levels"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-web  = "3.3"
+env_logger = "0.9"
+maud       = { version = "0.22", features = ["actix-web"] }
+serde      = "1"
diff --git a/src/backend.rs b/src/backend.rs
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+++ b/src/backend.rs
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+// Empty for now
diff --git a/src/frontend.rs b/src/frontend.rs
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+++ b/src/frontend.rs
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+use actix_web::Result;
+use actix_web::get;
+use actix_web::post;
+use actix_web::web;
+
+#[get("/")]
+pub async fn index() -> Result<maud::Markup> {
+    Ok(maud::html! {
+        html {
+            body {
+                h1 { "Hello World!" }
+
+                form action="/make_landscape" method="post" {
+                    label { "Elements" }
+                    input type="number" name="elements" checked;
+
+                    input type="submit";
+                }
+            }
+        }
+    })
+}
+
+
+#[derive(serde::Deserialize)]
+pub struct LandscapeSize {
+    elements: usize,
+}
+
+#[post("/make_landscape")]
+pub async fn make_landscape(form: web::Form<LandscapeSize>) -> Result<maud::Markup> {
+    if form.elements > 100 {
+        return Ok(maud::html! {
+            html {
+                body {
+                    p { "For runtime reasons, this application only supports landscapes up to 100 elements" }
+                }
+            }
+        })
+    }
+
+    Ok(maud::html! {
+        html {
+            body {
+                h1 { "Hello World!" }
+
+                p { "Please fill in the landscape values" }
+                form action="/calculate" method="post" {
+                    @for _n in 0..form.elements {
+                        p {
+                            input type="number" name="levels[]" checked;
+                        }
+                    }
+
+                    input type="number" name="hours" checked;
+                    label for="hours" { "Hours of Rain" }
+
+                    input type="submit";
+                }
+            }
+        }
+    })
+}
+
+#[derive(serde::Deserialize)]
+pub struct Landscape {
+    levels: Vec<usize>,
+    hours: usize,
+}
+
+#[post("/calculate")]
+pub async fn calculate(form: web::Form<Landscape>) -> Result<maud::Markup> {
+    Ok(maud::html! {
+        html {
+            body {
+                h1 { "Landscape!" }
+
+                p { "Filling in " (form.hours) " hours" }
+
+                @for value in &form.levels {
+                    p { (value) }
+                }
+            }
+        }
+    })
+}
+
diff --git a/src/main.rs b/src/main.rs
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+++ b/src/main.rs
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+use actix_web::App;
+use actix_web::HttpServer;
+use actix_web::middleware::Logger;
+
+mod frontend;
+mod backend;
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    std::env::set_var("RUST_LOG", "actix_web=info");
+    env_logger::init();
+
+    HttpServer::new(|| {
+        App::new()
+            .wrap(Logger::default())
+            .wrap(Logger::new("%a %{User-Agent}i"))
+            .service(crate::frontend::index)
+            .service(crate::frontend::make_landscape)
+            .service(crate::frontend::calculate)
+    })
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
+}