1 files changed, 55 insertions, 0 deletions
diff --git a/src/router.ts b/src/router.ts
new file mode 100644
index 0000000..abbdc65
--- /dev/null
+++ b/src/router.ts
@@ -0,0 +1,55 @@
+import * as Config from 'config'
+
+export enum Kind {
+  Form,
+  Timer,
+}
+
+export interface Route {
+  kind: Kind,
+  config: Config.Config
+}
+
+export function from(location: Location): Route {
+  const hash = location.hash.slice(1)
+  const parts = hash.split('?')
+  const path = parts[0]
+  const search = parts.length > 1 ? parts[1] : ''
+
+  const kind = path.startsWith('/timer') ? Kind.Timer : Kind.Form
+  let config = Config.init()
+  if (search.length > 0) {
+    search.split('&').forEach(entry => {
+      const xs = entry.split('=')
+      if (xs.length === 2) {
+        const key = xs[0]
+        const value = parseInt(xs[1])
+        if (key == 'prepare') config.prepare = value
+        else if (key == 'tabatas') config.tabatas = value
+        else if (key == 'cycles') config.cycles = value
+        else if (key == 'work') config.work = value
+        else if (key == 'rest') config.rest = value
+      }
+    })
+    const params = search.split('&')
+  }
+
+  return { kind, config }
+}
+
+export function toString(route: Route): string {
+  const path = route.kind === Kind.Form ? '/' : '/timer'
+  let query = ''
+  if (route.config !== undefined) {
+    const { prepare, tabatas, cycles, work, rest } = route.config
+    const params = [
+      `prepare=${prepare}`,
+      `tabatas=${tabatas}`,
+      `cycles=${cycles}`,
+      `work=${work}`,
+      `rest=${rest}`,
+    ].join('&')
+    query = `?${params}`
+  }
+  return `#${path}${query}`
+}