library functions for interpreting CMS data

1 files changed, 166 insertions, 0 deletions

diff --git a/themes/okadmin/public/js/okcms.js b/themes/okadmin/public/js/okcms.js
new file mode 100644
index 0000000..5a91a13
--- /dev/null
+++ b/themes/okadmin/public/js/okcms.js
@@ -0,0 +1,166 @@
+var OKCMS = (function(){
+  
+  var root = window.location.pathname.split("/")[1]
+  var dbPath = [ "", root, "index.json" ].join("/")
+  
+  var OKCMS = function(opt){
+    this.opt = Object.assign({
+      ready: function(){},
+    }, opt || {})
+    this.fetch()
+  }
+  OKCMS.prototype.fetch = function(){
+    var request = $.ajax({
+      url: dbPath,
+      type: "get",
+      success: this.load.bind(this)
+    })
+  }
+  OKCMS.prototype.load = function(data){
+    this.data = data
+    // data.meta
+    // data.resources by type
+    // data.resources[types].type
+    // data.resources[types].spec
+    // data.resources[types].groupBy
+    // data.resources[types].descending
+    // data.resources[types].data[]
+    // data.resources[types].data[0][groupBy][group]
+    var resources = this.resources = {}
+    this.types = Object.keys(data.resources)
+    this.types.forEach(function(type){
+      var resource = data.resources[type]
+      resources[resource.type] = resource
+      resource.lookup = {}
+      if (resource.groupBy) {
+        var group_lookup = resource.data[0][resource.groupBy]
+        var groups = Object.keys(group_lookup)
+        resource.index = []
+        groups.forEach(function(group){
+          var list = group_lookup[group]
+          list.forEach(function(record){
+            resource.lookup[record.id] = record
+            resource.index.push(record)
+          })
+        })
+      }
+      else {
+        resource.data.forEach(function(record){
+          resource.lookup[record.id] = record
+        })
+      }
+    })
+    this.opt.ready && this.opt.ready()
+  }
+  OKCMS.prototype.getResource = function(type){
+    var resource = this.resources[type]
+    if (! resource) throw new Error ("Resource not found: " + type)
+    return resource
+  }
+  OKCMS.prototype.index = function(type){
+    var resource = this.getResource(type)
+    return resource.index
+  }
+  OKCMS.prototype.groups = function(type){
+    var resource = this.getResource(type)
+    return resource.data[0][resource.groupBy]
+  }
+  OKCMS.prototype.keys = function(type){
+    var index = this.index(type)
+    var keys = index.map(function(rec){
+      return rec.id
+    })
+    return keys
+  }
+  OKCMS.prototype.spec = function(type){
+    var resource = this.getResource(type)
+    return resource.spec
+  }
+  OKCMS.prototype.get = function(type, id){
+    var resource = this.getResource(type)
+    if (id in resource.index) {
+      return resource.index[id]
+    }
+    throw new Error ("Key not found: " + type + ":" + id)
+  }
+  OKCMS.prototype.new = function(type){
+    var resource = this.resource(type)
+    var spec = this.spec(type)
+    var record = {}
+    Object.keys(spec).forEach(function(key){
+      var field = spec[key]
+      switch (field.type) {
+        case 'foreign-key':
+          record[key] = ""
+          break
+        
+        case 'enum':
+          record[key] = field.values[0]
+          break
+
+        case 'meta':
+          if (key === "__index") {
+            record[key] = resource.index.length
+          }
+          else if (key === "dateCreated") {
+            record[key] = (new Date ()).toUTCString()
+          }
+          else {
+            record[key] = "" // ???
+          }
+          break
+        
+        case 'date':
+          record[key] = new Date
+          break
+        
+        case 'flag':
+          record[key] = false
+          break
+        
+        case 'link-list':
+        case 'gallery':
+        case 'media':
+          record[key] = []
+          break
+
+        case 'image':
+        case 'video':
+          record[key] = {}
+          break
+
+        case 'number':
+          record[key] = 0
+          break
+
+        case 'string':
+        case 'text':
+        default:
+          record[key] = ""
+          break
+      }
+    })
+    return record
+  }
+  OKCMS.prototype.enum_keys = function(type, field){
+    var spec = this.spec(type)
+    var field = spec[field]
+    if (! field) throw new Error ("No such field: " + field)
+    if (field.type == "enum") {
+      return field.options
+    }
+    else if (field.type == "foreign-key") {
+      return this.keys(field.key)
+    }
+  }
+  OKCMS.prototype.save = function(type, data){
+  }
+  OKCMS.prototype.create = function(type, data){
+  }
+  OKCMS.prototype.update = function(type, data){
+    var id = data.id
+  }
+  OKCMS.prototype.destroy = function(type, id){
+  }
+
+})()
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