# golem15.feedback

The shared feedback-widget plugin for SummerCMS applications: an embeddable widget's public config and submit API behind a widget key and an Origin allow-list, a per-user "hide the widget" preference, the widget settings, and a job that files every submission as a G15Office task.

```go
import _ "git.golem15.com/golem15/sm-feedback-plugin"
```

Module `git.golem15.com/golem15/sm-feedback-plugin`, package `feedback`, plugin ID `golem15.feedback`.

## Overview

The plugin is a compiled SummerCMS plugin ported from the WinterCMS `Golem15.Feedback` plugin. Its `init` registers it with the framework, so an application loads it by listing it in `summer.yaml`; `summer build` then emits the blank import above into the application's `plugins.gen.go`. It requires `golem15.user`.

The widget routes are public. The widget key in the URL is a public identifier (it ships in the embed snippet), not a secret: the real gate is the Origin check against the operator's allowed-origins list, backed by per-IP rate limits.

The plugin ID, the table names, the config keys and the settings code are a contract shared by every application that mounts the plugin: change them only in a backwards-compatible way.

## Features

- **Widget config.** `GET /_feedback/api/v1/{key}/config` answers the widget's position, whether visitors may hide it, its colors and its labels (`?lang=en` selects the English labels, anything else the Polish ones). A disabled widget, an empty key or a key that differs (compared in constant time) is 404 `{"error":true,"message":"Not found"}`.
- **Origin gate.** A request without an `Origin` header passes. An `Origin` passes only when its URL host, lower-cased, is on the allowed-origins list (one entry per line; a line is reduced to its URL host when it has one). An empty list refuses every `Origin` with 403 `{"error":true,"message":"Origin not allowed"}`, so a widget that was never configured cannot be embedded anywhere.
- **Submissions.** `POST /_feedback/api/v1/{key}/submit` (multipart, from the widget) passes the same key and Origin gate, then validates the report as the WinterCMS plugin does: `message` (required, up to 5000 characters), `type` (`bug`, `feature` or `other`), `email` (optional, up to 255), `page_url` (required, up to 2000), `user_agent` (up to 500), `console_log` (up to 20000) and `screenshot` (an optional JPEG, PNG, GIF or WebP of up to 10240 KB). A failure is 422 `{"error":true,"message":"Validation failed","details":{...}}`. A screenshot whose bytes do not decode as one of those images (`classes.IsAllowedImage`) is 422 with `details.screenshot = ["The file is not a valid image."]`. The submission (status `pending`), its public screenshot (attachOne `screenshot`) and its G15Office job are written in one transaction, and the answer is 202 `{"success":true}`: the visitor never waits on G15Office.
- **Hiding the widget.** `PUT /_feedback/api/v1/me/hidden` (behind golem15.user's `jwt.auth`) stores the signed-in user's preference: `hidden` must be a Laravel boolean (`true`, `false`, `1`, `0`, `"1"`, `"0"`), else 422 `{"error":"Validation failed","errors":{...}}`. The answer is `{"hidden":bool}`. Every golem15.user payload (fetch, login, update) carries `feedback_widget_hidden` through a `GetApiArrayEvent` listener: the stored value, false without a row.
- **CORS.** The widget's preflights are answered by the framework's path-scoped CORS layer, so the plugin registers no `OPTIONS` route.
- **Rate limits.** The named buckets `feedback-config` (60 a minute) and `feedback-submit` (10 a minute) count per client IP behind the configured trusted proxies.
- **Settings.** `models.Settings` is the singleton row of `golem15_feedback_settings`. `models.Instance` creates it on first access with the WinterCMS defaults and a new widget key (`wk_` plus 32 random letters and digits).

## Usage

Mount the plugin in an application as a git submodule at `plugins/golem15/feedback`:

```sh
git submodule add git@git.golem15.com:golem15/sm-feedback-plugin.git plugins/golem15/feedback
```

Add it to the application's `go.work` and `go.mod`:

```text
use ./plugins/golem15/feedback

require git.golem15.com/golem15/sm-feedback-plugin v0.0.0

replace git.golem15.com/golem15/sm-feedback-plugin => ./plugins/golem15/feedback
```

List it in `summer.yaml` after `golem15.user` and run `summer build`:

```yaml
module: git.golem15.com/golem15/acme
binary: acme
plugins:
  - id: golem15.user
    module: git.golem15.com/golem15/sm-user-plugin
  - id: golem15.feedback
    module: git.golem15.com/golem15/sm-feedback-plugin
```

The application's `http.cors.paths` must list `_feedback/api/*`: the widget calls the API from other origins.

The plugin's own `go.mod` replaces the framework with `../../../../summercms.go` and the user plugin with `../user`, so it expects the framework checkout next to the application checkout and the user plugin mounted beside it.

## API reference

- `feedback`: `Plugin`, the `golem15.feedback` plugin (config, lang, migrations, models, routes, buckets); `BucketConfig`, `BucketSubmit`.
- `controllers/api`: `Config`, `Submit`, `SubmitRules`, `MeHidden`, `MeHiddenRules`, `KeyMatches`, `OriginAllowed`.
- `classes`: `IsAllowedImage`, `SniffImageMIME`, `AllowedImageMIMEs`; `Screenshot`, `StoreSubmission`, `ScreenshotOf`; the job contract `SyncG15OfficeArgs`, `SyncG15OfficeKind`, `SyncG15OfficeQueue`, `SyncG15OfficeLabel`, `SyncG15OfficeAttempts`.
- `models`: `Settings` (table `golem15_feedback_settings`), `SettingsID`, `SettingsCode`, `DefaultSettings`, `Instance`, `NewWidgetKey`, `Labels`, `URLHost`, `ASCIILower`; `Submission` (table `golem15_feedback_submissions`), `StatusPending`, `StatusSent`, `StatusFailed`, `TypeBug`, `TypeFeature`, `TypeOther`, `ScreenshotField`, `G15OfficeTypeMap`; `UserPreference` (table `golem15_feedback_user_preferences`), `IsWidgetHidden`, `SetWidgetHidden`; `Register`, `All`.
- `updates`: the migrations (`202610030201_create_feedback_submissions`, `202610030202_create_feedback_user_preferences`, `202610030203_create_feedback_settings`), `Register`, `All`.

## Configuration

Defaults live in `config/config.yaml` and are merged under `golem15.feedback.*`.

| Key | Default | Meaning |
|-----|---------|---------|
| `golem15.feedback.g15_office.base_url` | empty | The G15Office base URL submissions are filed under. |
| `golem15.feedback.g15_office.token` | empty | The G15Office API token. Never commit it. |
| `golem15.feedback.g15_office.project` | empty | The G15Office project the tasks are created in. |

Override them with `SUMMER_GOLEM15__FEEDBACK__G15_OFFICE__BASE_URL`, `SUMMER_GOLEM15__FEEDBACK__G15_OFFICE__TOKEN` and `SUMMER_GOLEM15__FEEDBACK__G15_OFFICE__PROJECT`.

## Dependencies

- The SummerCMS framework, `git.golem15.com/golem15/summercms` (modules `backpack`, `bouncer`, `compass`, `conga`, `lagoon`, `pact`, `party`, `phrasebook`, `surf`, `wire`).
- gocloud.dev blob storage for the screenshots, through the application's uploads bucket.
- The user plugin, `git.golem15.com/golem15/sm-user-plugin`.
- GORM and gormigrate, as pinned in `go.mod`.
- testcontainers-go for the Postgres-backed tests.

## Testing

```sh
go test ./...   # starts Postgres with testcontainers (needs Docker)
```