Add web timeline mockup, design doc, and show data model

lib/show/model.go

@@ -0,0 +1,38 @@
+package show
+
+type StateType string
+
+const (
+	Lighting StateType = "lighting"
+	Media    StateType = "media"
+)
+
+type State struct {
+	ID       string    `json:"id"`
+	Type     StateType `json:"type"`
+	Sequence int       `json:"sequence"`
+	Layer    int       `json:"layer"`
+
+	LightingParams *LightingParams `json:"lightingParams,omitempty"`
+	MediaParams    *MediaParams    `json:"mediaParams,omitempty"`
+}
+
+type LightingParams struct {
+	Fixtures []FixtureSetting `json:"fixtures"`
+}
+
+type FixtureSetting struct {
+	ID       string         `json:"id"`
+	Channels map[string]int `json:"channels"`
+}
+
+type MediaParams struct {
+	Source string `json:"source"`
+	Loop   bool   `json:"loop"`
+}
+
+type Cue struct {
+	ID       string `json:"id"`
+	Sequence int    `json:"sequence"`
+	Name     string `json:"name"`
+}