[feature] Stub conversations endpoint (#2853)

4 files changed, 178 insertions, 9 deletions

diff --git a/internal/api/client.go b/internal/api/client.go
index 78c2eacea..d30f82e7b 100644
--- a/internal/api/client.go
+++ b/internal/api/client.go
@@ -26,6 +26,7 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/apps"
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/blocks"
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/bookmarks"
+	"github.com/superseriousbusiness/gotosocial/internal/api/client/conversations"
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/customemojis"
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/favourites"
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/featuredtags"
@@ -60,6 +61,7 @@ type Client struct {
 	apps           *apps.Module           // api/v1/apps
 	blocks         *blocks.Module         // api/v1/blocks
 	bookmarks      *bookmarks.Module      // api/v1/bookmarks
+	conversations  *conversations.Module  // api/v1/conversations
 	customEmojis   *customemojis.Module   // api/v1/custom_emojis
 	favourites     *favourites.Module     // api/v1/favourites
 	featuredTags   *featuredtags.Module   // api/v1/featured_tags
@@ -103,6 +105,7 @@ func (c *Client) Route(r *router.Router, m ...gin.HandlerFunc) {
 	c.apps.Route(h)
 	c.blocks.Route(h)
 	c.bookmarks.Route(h)
+	c.conversations.Route(h)
 	c.customEmojis.Route(h)
 	c.favourites.Route(h)
 	c.featuredTags.Route(h)
@@ -134,6 +137,7 @@ func NewClient(db db.DB, p *processing.Processor) *Client {
 		apps:           apps.New(p),
 		blocks:         blocks.New(p),
 		bookmarks:      bookmarks.New(p),
+		conversations:  conversations.New(p),
 		customEmojis:   customemojis.New(p),
 		favourites:     favourites.New(p),
 		featuredTags:   featuredtags.New(p),
diff --git a/internal/api/client/conversations/conversations.go b/internal/api/client/conversations/conversations.go
new file mode 100644
index 000000000..be19a9cdc
--- /dev/null
+++ b/internal/api/client/conversations/conversations.go
@@ -0,0 +1,45 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package conversations
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/superseriousbusiness/gotosocial/internal/processing"
+)
+
+const (
+	// BasePath is the base URI path for serving
+	// conversations, minus the api prefix.
+	BasePath = "/v1/conversations"
+)
+
+type Module struct {
+	processor *processing.Processor
+}
+
+func New(processor *processing.Processor) *Module {
+	return &Module{
+		processor: processor,
+	}
+}
+
+func (m *Module) Route(attachHandler func(method string, path string, f ...gin.HandlerFunc) gin.IRoutes) {
+	attachHandler(http.MethodGet, BasePath, m.ConversationsGETHandler)
+}
diff --git a/internal/api/client/conversations/conversationsget.go b/internal/api/client/conversations/conversationsget.go
new file mode 100644
index 000000000..11bddb1ce
--- /dev/null
+++ b/internal/api/client/conversations/conversationsget.go
@@ -0,0 +1,122 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package conversations
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+// ConversationsGETHandler swagger:operation GET /api/v1/conversations conversationsGet
+//
+// Get an array of (direct message) conversations that requesting account is involved in.
+//
+// NOT IMPLEMENTED YET: Will currently always return an array of length 0.
+//
+// The next and previous queries can be parsed from the returned Link header.
+// Example:
+//
+// ```
+// <https://example.org/api/v1/conversations?limit=80&max_id=01FC0SKA48HNSVR6YKZCQGS2V8>; rel="next", <https://example.org/api/v1/conversations?limit=80&min_id=01FC0SKW5JK2Q4EVAV2B462YY0>; rel="prev"
+// ````
+//
+//	---
+//	tags:
+//	- conversations
+//
+//	produces:
+//	- application/json
+//
+//	parameters:
+//	-
+//		name: max_id
+//		type: string
+//		description: >-
+//			Return only conversations *OLDER* than the given max ID.
+//			The conversation with the specified ID will not be included in the response.
+//			NOTE: the ID is of the internal conversation, use the Link header for pagination.
+//		in: query
+//		required: false
+//	-
+//		name: since_id
+//		type: string
+//		description: >-
+//			Return only conversations *NEWER* than the given since ID.
+//			The conversation with the specified ID will not be included in the response.
+//			NOTE: the ID is of the internal conversation, use the Link header for pagination.
+//		in: query
+//	-
+//		name: min_id
+//		type: string
+//		description: >-
+//			Return only conversations *IMMEDIATELY NEWER* than the given min ID.
+//			The conversation with the specified ID will not be included in the response.
+//			NOTE: the ID is of the internal conversation, use the Link header for pagination.
+//		in: query
+//		required: false
+//	-
+//		name: limit
+//		type: integer
+//		description: Number of conversations to return.
+//		default: 40
+//		minimum: 1
+//		maximum: 80
+//		in: query
+//		required: false
+//
+//	security:
+//	- OAuth2 Bearer:
+//		- read:statuses
+//
+//	responses:
+//		'200':
+//			headers:
+//				Link:
+//					type: string
+//					description: Links to the next and previous queries.
+//			schema:
+//				type: array
+//				items:
+//					"$ref": "#/definitions/conversation"
+//		'400':
+//			description: bad request
+//		'401':
+//			description: unauthorized
+//		'404':
+//			description: not found
+//		'406':
+//			description: not acceptable
+//		'500':
+//			description: internal server error
+func (m *Module) ConversationsGETHandler(c *gin.Context) {
+	if _, err := oauth.Authed(c, true, true, true, true); err != nil {
+		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	if _, err := apiutil.NegotiateAccept(c, apiutil.JSONAcceptHeaders...); err != nil {
+		apiutil.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	apiutil.Data(c, http.StatusOK, apiutil.AppJSON, apiutil.EmptyJSONArray)
+}
diff --git a/internal/api/model/conversation.go b/internal/api/model/conversation.go
index 76299b32f..ba961cecb 100644
--- a/internal/api/model/conversation.go
+++ b/internal/api/model/conversation.go
@@ -17,19 +17,17 @@
 
 package model
 
-// Conversation represents a conversation with "direct message" visibility.
+// Conversation represents a conversation
+// with "direct message" visibility.
+//
+// swagger:model conversation
 type Conversation struct {
-	// REQUIRED
-
 	// Local database ID of the conversation.
 	ID string `json:"id"`
-	// Participants in the conversation.
-	Accounts []Account `json:"accounts"`
 	// Is the conversation currently marked as unread?
 	Unread bool `json:"unread"`
-
-	// OPTIONAL
-
-	// The last status in the conversation, to be used for optional display.
+	// Participants in the conversation.
+	Accounts []Account `json:"accounts"`
+	// The last status in the conversation. May be `null`.
 	LastStatus *Status `json:"last_status"`
 }