Add create study and delete study

standalone_app/src/journalStorage.ts

@@ -1,5 +1,6 @@
 import { SetterOrUpdater } from "recoil"
 
+// JournalStorage
 enum JournalOperation {
   CREATE_STUDY = 0,
   DELETE_STUDY = 1,
@@ -13,10 +14,110 @@ enum JournalOperation {
   SET_TRIAL_SYSTEM_ATTR = 9,
 }
 
+interface JournalOpBase {
+  op_code: JournalOperation
+  workor_id: string
+}
+
+interface JournalOpCreateStudy extends JournalOpBase {
+  study_name: string
+  directions: number[] // TODO(gen740): introduce Study Direction enum
+}
+
+interface JournalOpDeleteStudy extends JournalOpBase {
+  study_id: number
+}
+
+interface JournalOpSetStudyUserAttr extends JournalOpBase {
+  study_id: number
+  user_attr: { [key: string]: any }
+}
+
+interface JournalOpCreateTrial extends JournalOpBase {
+  study_id: number
+  datetime_start: string
+  params: TrialParam[]
+}
+
 export const loadJournalStorage = (
   arrayBuffer: ArrayBuffer,
   setter: SetterOrUpdater<Study[]>
 ): void => {
   const decoder = new TextDecoder("utf-8")
-  console.log(decoder.decode(arrayBuffer))
+  const logs = decoder.decode(arrayBuffer).split("\n")
+  let studies: Study[] = []
+  let nextStudyId = 0
+  for (let log of logs) {
+    if (log === "") {
+      continue
+    }
+    let parsedLog: JournalOpBase = JSON.parse(log)
+    switch (parsedLog.op_code) {
+      case JournalOperation.CREATE_STUDY:
+        const createStudyLog = parsedLog as JournalOpCreateStudy
+        studies.push({
+          study_id: nextStudyId,
+          study_name: createStudyLog.study_name,
+          directions: [
+            createStudyLog.directions[0] === 1 ? "minimize" : "maximize",
+          ],
+          union_search_space: [],
+          intersection_search_space: [],
+          union_user_attrs: [],
+          trials: [],
+        })
+        nextStudyId++
+        break
+      case JournalOperation.DELETE_STUDY:
+        const deleteStudyLog = parsedLog as JournalOpDeleteStudy
+        studies = studies.filter(
+          (item) => item.study_id != deleteStudyLog.study_id
+        )
+        break
+      case JournalOperation.SET_STUDY_USER_ATTR:
+        // const setStudyUserAttrLog = parsedLog as JournalOpSetStudyUserAttr
+        // studies = studies.map((item) => {
+        //   if (item.study_id === setStudyUserAttrLog.study_id) {
+        //     return {
+        //       ...item,
+        //       union_user_attrs: Object.entries(
+        //         setStudyUserAttrLog.user_attr
+        //       ).map(([key, value]) => {
+        //         return {
+        //           key: key,
+        //           value: value,
+        //         }
+        //       }),
+        //     }
+        //   } else {
+        //     return item
+        //   }
+        // })
+        break
+      case JournalOperation.SET_STUDY_SYSTEM_ATTR:
+        break
+      case JournalOperation.CREATE_TRIAL:
+        const createTrialLog = parsedLog as JournalOpCreateTrial
+        let trials = studies.find(
+          (item) => item.study_id == createTrialLog.study_id
+        )?.trials
+        if (trials === undefined) {
+          return
+        }
+        trials.push({
+          trial_id: trials.length,
+          number: 0,
+          study_id: createTrialLog.study_id,
+          state: "Running",
+          values: [],
+          params: [],
+          intermediate_values: [],
+          user_attrs: [],
+          datetime_start: new Date(createTrialLog.datetime_start),
+        })
+        break
+    }
+  }
+
+  setter((prev) => [...prev, ...studies])
 }