const std = @import("std");
const mime = @import("../mime.zig");
const Context = @import("context.zig");

const log = std.log.scoped(.fallback);

pub const access = .everyone;

pub fn get(ctx: *Context) anyerror![]const u8 {
    var static = try std.fs.cwd().openDir("static", .{});
    defer static.close();

    if (static.openFile(ctx.request.head.target[1..], .{})) |file| {
        defer file.close();
        const content = file.readToEndAlloc(ctx.allocator, std.math.maxInt(usize));
        const mime_type = mime.get_type(ctx.request.head.target);
        ctx.response.headers.content_type = mime_type;
        return content;
    } else |_| {
        var subdir = if (ctx.request.head.target.len == 1) static
            else (static.openDir(ctx.request.head.target[1..], .{}) catch {
                return error.NotFound;
            });
        defer if (ctx.request.head.target.len > 1) subdir.close();

        if (subdir.openFile("index.html", .{})) |file| {
            defer file.close();
            const content = file.readToEndAlloc(ctx.allocator, std.math.maxInt(usize));
            ctx.response.headers.content_type = "text/html";
            return content;
        } else |_| {
            log.warn("File '{s}' Not Found", .{ ctx.request.head.target });
            return error.NotFound;
        }
    }
}