// SPDX-License-Identifier: AGPL-3.0-only
import { Application, Router, Response, Request } from "https://deno.land/x/oak@v10.1.0/mod.ts";
import { compile, compileTemplate } from "https://deno.land/x/pug@v0.1.3/mod.ts";


const app = new Application()
const router = new Router()

const renderEnv = {
    commit: Deno.readTextFileSync("./.git/refs/heads/main").toString().substr(0, 8)
}

const templates: Map<string, compileTemplate> = new Map()
async function render(response: Response, _request: Request, name: string) {
    const template = templates.get(name) ?? compile(await Deno.readTextFile(`./views/${name}.pug`), { filename: `./views/${name}.pug`, name: name })
    templates.set(name, template)
    response.body = template({ ...renderEnv })
}

router.get("/", ({ response }) => response.redirect("/about"))

router.get("/about", c => render(c.response, c.request, "about"))
router.get("/projects", c => render(c.response, c.request, "projects"))
router.get("/contact", c => render(c.response, c.request, "contact"))
router.get("/links", c => render(c.response, c.request, "links"))
router.get("/services", c => render(c.response, c.request, "services"))

router.get("/licence", async ({ response }) => {
    const content = await Deno.readTextFile("LICENCE")
    response.headers.set("content-type", "text/plain")
    response.body = content
})

router.get("/favicon.ico", ({ response }) => response.status = 204) // no content
router.get("/robots.txt", ({ response }) => {
    response.body = "User-Agent: *\nDisallow: /\n"
})

const port = parseInt(Deno.env.get("PORT") ?? "8080")
const hostname = Deno.env.get("HOST") || "127.0.0.1"

app.use(router.routes())
app.listen({ port, hostname })
console.log(`listening on http://${hostname}:${port}`);