Import & export views

src/routes/features/groups/[id]/export/+page.svelte

@@ -0,0 +1,50 @@
+<script>
+    import { goto } from "$app/navigation";
+    import { page } from "$app/stores";
+    import FormContainer from "$components/ui/forms/FormContainer.svelte";
+    import FormControl from "$components/ui/forms/FormControl.svelte";
+    import Menu from "$components/ui/menu/Menu.svelte";
+    import MenuItem from "$components/ui/menu/MenuItem.svelte";
+    import TagGroup from "$entities/TagGroup.ts";
+    import EntitiesTransporter from "$lib/extension/EntitiesTransporter.ts";
+    import { tagGroupsStore } from "$stores/tag-groups-store.js";
+
+    const groupId = $page.params.id;
+    const groupTransporter = new EntitiesTransporter(TagGroup);
+    const group = $tagGroupsStore.find(group => group.id===groupId);
+
+    /** @type {string} */
+    let rawExportedGroup;
+    /** @type {string} */
+    let encodedExportedGroup;
+
+    if (!group) {
+        goto('/features/groups');
+    } else {
+        rawExportedGroup = groupTransporter.exportToJSON(group);
+        encodedExportedGroup = groupTransporter.exportToCompressedJSON(group);
+    }
+
+    let isEncodedGroupShown = true;
+</script>
+
+<Menu>
+    <MenuItem href="/features/groups/{groupId}" icon="arrow-left">Back</MenuItem>
+    <hr>
+</Menu>
+<FormContainer>
+    <FormControl label="Export string">
+        <textarea readonly rows="6">{isEncodedGroupShown ? encodedExportedGroup : rawExportedGroup}</textarea>
+    </FormControl>
+</FormContainer>
+<Menu>
+    <hr>
+    <MenuItem on:click={() => isEncodedGroupShown = !isEncodedGroupShown}>
+        Switch Format:
+        {#if isEncodedGroupShown}
+            Base64-Encoded
+        {:else}
+            Raw JSON
+        {/if}
+    </MenuItem>
+</Menu>

src/routes/features/groups/import/+page.svelte

@@ -0,0 +1,134 @@
+<script>
+    import { goto } from "$app/navigation";
+    import GroupView from "$components/features/GroupView.svelte";
+    import FormContainer from "$components/ui/forms/FormContainer.svelte";
+    import FormControl from "$components/ui/forms/FormControl.svelte";
+    import Menu from "$components/ui/menu/Menu.svelte";
+    import MenuItem from "$components/ui/menu/MenuItem.svelte";
+    import TagGroup from "$entities/TagGroup.ts";
+    import EntitiesTransporter from "$lib/extension/EntitiesTransporter.ts";
+    import { tagGroupsStore } from "$stores/tag-groups-store.js";
+
+    const groupTransporter = new EntitiesTransporter(TagGroup);
+
+    /** @type {string} */
+    let importedString = '';
+    /** @type {string} */
+    let errorMessage = '';
+
+    /** @type {TagGroup|null} */
+    let candidateGroup = null;
+    /** @type {TagGroup|null} */
+    let existingGroup = null;
+
+    function tryImportingGroup() {
+        candidateGroup = null;
+        existingGroup = null;
+
+        errorMessage = '';
+        importedString = importedString.trim();
+
+        if (!importedString) {
+            errorMessage = 'Nothing to import.';
+            return;
+        }
+
+        try {
+            if (importedString.trim().startsWith('{')) {
+                candidateGroup = groupTransporter.importFromJSON(importedString);
+            }
+
+            candidateGroup = groupTransporter.importFromCompressedJSON(importedString);
+        } catch (error) {
+            errorMessage = error instanceof Error
+                    ? error.message
+                    :'Unknown error';
+        }
+
+        if (candidateGroup) {
+            existingGroup = $tagGroupsStore.find(group => group.id===candidateGroup?.id) ?? null;
+        }
+    }
+
+    function saveGroup() {
+        if (!candidateGroup) {
+            return;
+        }
+
+        candidateGroup.save().then(() => {
+            goto(`/features/groups`);
+        });
+    }
+
+    function cloneAndSaveGroup() {
+        if (!candidateGroup) {
+            return;
+        }
+
+        const clonedProfile = new TagGroup(crypto.randomUUID(), candidateGroup.settings);
+        clonedProfile.settings.name += ` (Clone ${ new Date().toISOString() })`;
+        clonedProfile.save().then(() => {
+            goto(`/features/groups`);
+        });
+    }
+</script>
+
+<Menu>
+    <MenuItem icon="arrow-left" href="/features/groups">Back</MenuItem>
+    <hr>
+</Menu>
+{#if errorMessage}
+    <p class="error">Failed to import: {errorMessage}</p>
+    <Menu>
+        <hr>
+    </Menu>
+{/if}
+{#if !candidateGroup}
+    <FormContainer>
+        <FormControl label="Import string">
+            <textarea bind:value={importedString} rows="6"></textarea>
+        </FormControl>
+    </FormContainer>
+    <Menu>
+        <hr>
+        <MenuItem on:click={tryImportingGroup}>Import</MenuItem>
+    </Menu>
+{:else}
+    {#if existingGroup}
+        <p class="warning">
+            This group will replace the existing "{existingGroup.settings.name}" group, since it have the same ID.
+        </p>
+    {/if}
+    <GroupView group="{candidateGroup}"></GroupView>
+    <Menu>
+        <hr>
+        {#if existingGroup}
+            <MenuItem on:click={saveGroup}>Replace Existing Group</MenuItem>
+            <MenuItem on:click={cloneAndSaveGroup}>Save as New Group</MenuItem>
+        {:else}
+            <MenuItem on:click={saveGroup}>Import New Group</MenuItem>
+        {/if}
+        <MenuItem on:click={() => candidateGroup = null}>Cancel</MenuItem>
+    </Menu>
+{/if}
+
+<style lang="scss">
+    @use '../../../../styles/colors';
+
+    .error, .warning {
+        padding: 5px 24px;
+        margin: {
+            left: -24px;
+            right: -24px;
+        }
+    }
+
+    .error {
+        background: colors.$error-background;
+    }
+
+    .warning {
+        background: colors.$warning-background;
+        margin-bottom: .5em;
+    }
+</style>