From 53a1e6026ad0e2e83360e7325fee361ff7ec0f07 Mon Sep 17 00:00:00 2001
From: Yoshua Wuyts <i@yoshuawuyts.com>
Date: Thu, 12 May 2016 14:45:20 +0700
Subject: [PATCH] choo: add href / history handling

---
 examples/http/client.js      |  7 ++--
 examples/http/models/sent.js | 15 ++++++++
 examples/http/views/main.js  |  3 +-
 index.js                     | 70 ++++++++++++++++++++----------------
 4 files changed, 61 insertions(+), 34 deletions(-)

diff --git a/examples/http/client.js b/examples/http/client.js
index 32c32cf..2bdb663 100644
--- a/examples/http/client.js
+++ b/examples/http/client.js
@@ -5,7 +5,7 @@ sf('css-wipe/dest/bundle')
 sf('tachyons')
 
 const mainView = require('./views/main')
-const navElement = require('./elements/nav')
+const nav = require('./elements/nav')
 
 const app = choo()
 
@@ -14,7 +14,10 @@ app.model('spam', require('./models/spam'))
 app.model('sent', require('./models/sent'))
 
 app.router((route) => [
-  route('/', mainView(navElement))
+  route('/', mainView(nav)),
+  route('/:mailbox', mainView(nav), [
+    route('/:message_id', mainView(nav))
+  ])
 ])
 
 const tree = app.start()
diff --git a/examples/http/models/sent.js b/examples/http/models/sent.js
index e69de29..75b7bb7 100644
--- a/examples/http/models/sent.js
+++ b/examples/http/models/sent.js
@@ -0,0 +1,15 @@
+module.exports = {
+  state: {
+    messages: [
+      {
+        id: 4,
+        subject: 'Should I use Ember',
+        from: 'user@example.com',
+        to: 'tomster@emberjs.com',
+        date: new Date(),
+        body: 'Ember looks pretty good, should I use it?'
+      }
+    ]
+  },
+  reducers: { }
+}
diff --git a/examples/http/views/main.js b/examples/http/views/main.js
index 7335529..c0bea4f 100644
--- a/examples/http/views/main.js
+++ b/examples/http/views/main.js
@@ -3,9 +3,10 @@ const choo = require('../../../')
 
 module.exports = function (nav) {
   return function (params, state, send) {
+    console.log(state)
     return choo.view`
       <main class="app">
-        <span>URL: ${pathname(state.location) || '/'}</span>
+        <span>URL: ${'/' + pathname(state.location)}</span>
         ${nav(params, state, send)}
         <section>
           <table>
diff --git a/index.js b/index.js
index add9550..755c4a7 100644
--- a/index.js
+++ b/index.js
@@ -1,9 +1,8 @@
-// const history = require('sheet-router/history')
+const history = require('sheet-router/history')
 const sheetRouter = require('sheet-router')
 const document = require('global/document')
-// const href = require('sheet-router/href')
+const href = require('sheet-router/href')
 const sendAction = require('send-action')
-const mutate = require('xtend/mutable')
 const xtend = require('xtend')
 const yo = require('yo-yo')
 
@@ -12,7 +11,9 @@ module.exports = choo
 
 // A framework for creating sturdy web applications
 // null -> fn
-function choo () {
+function choo (opts) {
+  opts = opts || {}
+  const name = opts.name || 'choo'
   var _router = null
   var _models = [ appInit() ]
 
@@ -27,20 +28,33 @@ function choo () {
   function start () {
     const events = bootstrap(_models)
     const send = sendAction({
-      onaction: events.middleware,
+      onaction: events.modifyState,
       onchange: onchange,
       state: events.state
     })
 
+    if (opts.href !== false) {
+      href(function (href) {
+        send('location', { location: href })
+      })
+    }
+
+    if (opts.history !== false) {
+      history(function (href) {
+        send('location', { location: href })
+      })
+    }
+
+    const rootId = name + '-root'
     const tree = _router(send.state().location, send.state(), send)
-    tree.setAttribute('id', 'choo-root')
+    tree.setAttribute('id', rootId)
     return tree
 
     // update on every change
     function onchange (action, state) {
-      const oldTree = document.querySelector('#choo-root')
+      const oldTree = document.querySelector('#' + rootId)
       const newTree = _router(state.location, state, send)
-      newTree.setAttribute('id', 'choo-root')
+      newTree.setAttribute('id', rootId)
       yo.update(oldTree, newTree)
     }
   }
@@ -60,6 +74,8 @@ function choo () {
   }
 }
 
+// initial application state model
+// null -> obj
 function appInit () {
   return {
     state: {
@@ -78,35 +94,18 @@ function appInit () {
 }
 
 function bootstrap (events) {
-  const initialState = { }
+  const initialState = {}
   const reducers = {}
   const effects = {}
 
-  events.forEach(function (event) {
-    const name = event.name
-    if (event.state) mutate(initialState, event.state)
-    if (event.reducers) {
-      Object.keys(event.reducers).forEach(function (key) {
-        if (name) {
-          reducers[name + ':' + key] = event.reducers[key]
-        } else {
-          reducers[key] = event.reducers[key]
-        }
-      })
-    }
-    if (event.effects) {
-      Object.keys(event.effects).forEach(function (key) {
-        if (name) {
-          effects[name + ':' + key] = event.effects[key]
-        } else {
-          effects[key] = event.effects[key]
-        }
-      })
-    }
+  events.forEach(function (model) {
+    if (model.state) apply(model.name, model.state, initialState)
+    if (model.reducers) apply(model.name, model.reducers, reducers)
+    if (model.effects) apply(model.name, model.effects, effects)
   })
 
   return {
-    middleware: modifyState,
+    modifyState: modifyState,
     state: initialState
   }
 
@@ -133,3 +132,12 @@ function bootstrap (events) {
     return newState
   }
 }
+
+// compose an object conditionally
+// (str, obj, obj) -> null
+function apply (name, source, target) {
+  Object.keys(source).forEach(function (key) {
+    if (name) target[name + ':' + key] = source[key]
+    else target[key] = source[key]
+  })
+}