Find components with state vars and allow user to select

packages/builder/src/pages/builder/app/[application]/design/[screenId]/_components/StatePanel.svelte

@@ -1,14 +1,151 @@
-<script>
-  import { ActionButton, Modal, ModalContent } from "@budibase/bbui"
+<script lang="ts">
+  import { ActionButton, Modal, ModalContent, Combobox } from "@budibase/bbui"
+  import { getAllStateVariables } from "@/dataBinding"
+  import { appStore, selectedComponent, componentStore } from "@/stores/builder"
+  import {
+    decodeJSBinding,
+    findHBSBlocks,
+    isJSBinding,
+  } from "@budibase/string-templates"
 
-  let visible = false
-  let modal
+  let modal: Modal
+  let selectedKey = ""
+  let stateValue = ""
+  let componentsUsingState: Array<{ id: string; name: string }> = []
+  const keyOptions = getAllStateVariables()
+
+  function findComponentsUsingState(
+    component: any,
+    stateKey: string
+  ): Array<{ id: string; name: string }> {
+    let componentsUsingState: Array<{ id: string; name: string }> = []
+
+    const { _children, ...componentWithoutChildren } = component
+    const componentStr = JSON.stringify(componentWithoutChildren)
+
+    const bindings = findHBSBlocks(componentStr).map(binding => {
+      let sanitizedBinding = binding.replace(/\\"/g, '"')
+      if (isJSBinding(sanitizedBinding)) {
+        return decodeJSBinding(sanitizedBinding)
+      } else {
+        return sanitizedBinding
+      }
+    })
+    const bindingString = bindings.join(" ")
+
+    if (bindingString.includes(stateKey)) {
+      componentsUsingState.push({
+        id: component._id,
+        name: component._instanceName || "Unnamed Component",
+      })
+    }
+
+    if (_children) {
+      for (let child of _children) {
+        componentsUsingState = [
+          ...componentsUsingState,
+          ...findComponentsUsingState(child, stateKey),
+        ]
+      }
+    }
+
+    return componentsUsingState
+  }
+
+  function handleKeySelect(event: CustomEvent) {
+    selectedKey = event.detail
+    const localStorageKey = `${$appStore.appId}.state`
+    const state = JSON.parse(localStorage.getItem(localStorageKey) || "{}")
+    stateValue = state[selectedKey]
+
+    if ($selectedComponent) {
+      componentsUsingState = findComponentsUsingState(
+        $selectedComponent,
+        selectedKey
+      )
+    }
+  }
 </script>
 
 <ActionButton on:click={modal.show}>State</ActionButton>
 
 <Modal bind:this={modal}>
   <ModalContent title="State" showConfirmButton={false} cancelText="Close">
-    Some awesome state content.
+    <Combobox options={keyOptions} on:change={handleKeySelect} />
+    <div class="state-value helper">
+      <!-- eslint-disable-next-line svelte/no-at-html-tags -->
+      <pre>{@html JSON.stringify(stateValue, null, 2)}</pre>
+    </div>
+    {#if componentsUsingState.length > 0}
+      <div class="components-list">
+        <h4>Components using this state:</h4>
+        {#each componentsUsingState as component}
+          <button
+            class="component-link"
+            on:click={() => componentStore.select(component.id)}
+          >
+            {component.name}
+          </button>
+        {/each}
+      </div>
+    {/if}
   </ModalContent>
 </Modal>
+
+<style>
+  .state-value {
+    display: flex;
+    flex-direction: column;
+    gap: var(--spacing-m);
+    padding: var(--spacing-m);
+    background-color: var(--spectrum-global-color-gray-50);
+  }
+  .state-value pre {
+    padding: 0;
+    margin: 0;
+    font-size: 12px;
+    white-space: pre;
+    text-overflow: ellipsis;
+    overflow: hidden;
+  }
+  .state-value.helper pre {
+    color: var(--spectrum-global-color-blue-700);
+  }
+  .state-value pre :global(span) {
+    overflow: hidden !important;
+    text-overflow: ellipsis !important;
+    white-space: nowrap !important;
+  }
+  .state-value :global(p) {
+    padding: 0;
+    margin: 0;
+  }
+  .state-value.helper :global(code) {
+    font-size: 12px;
+  }
+  .components-list {
+    margin-top: var(--spacing-m);
+    padding: var(--spacing-m);
+    background-color: var(--spectrum-global-color-gray-50);
+  }
+  .components-list h4 {
+    margin: 0 0 var(--spacing-s) 0;
+    font-size: 14px;
+  }
+  .component-link {
+    display: block;
+    width: 100%;
+    text-align: left;
+    padding: var(--spacing-xs) var(--spacing-s);
+    margin: 2px 0;
+    border: none;
+    background: none;
+    color: var(--spectrum-global-color-blue-700);
+    cursor: pointer;
+    font-size: 12px;
+  }
+  .component-link:hover {
+    background-color: var(--spectrum-global-color-gray-200);
+    border-radius: 4px;
+  }
+</style>