feat(webui): add state force unlock

Closes #13

pkg/database/locks.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 
+	"git.adyxax.org/adyxax/tfstated/pkg/model"
 	"go.n16f.net/uuid"
 )
 
@@ -83,4 +84,15 @@ func (db *DB) Unlock(path string, lock any) (bool, error) {
 	}
 	return n == 1, nil
 }
+
+func (db *DB) ForceUnlock(state *model.State) error {
+	_, err := db.Exec(
+		`UPDATE states
+           SET lock = NULL
+           WHERE id = ?;`,
+		state.Id)
+	if err != nil {
+		return fmt.Errorf("failed to update state: %w", err)
+	}
+	return nil
 }

pkg/webui/html/statesId.html

@@ -70,7 +70,8 @@
     <input name="csrf_token" type="hidden" value="{{ .Page.Session.Data.CsrfToken }}">
     <fieldset>
       <legend>Danger Zone</legend>
-      <button action="delete" type="submit" value="delete">Delete State</button>
+      <button name="action" type="submit" value="delete">Delete State</button>
+      <button {{ if eq .State.Lock nil }}disabled{{ end }} name="action" type="submit" value="unlock">Unlock State</button>
     </fieldset>
   </form>
 </div>

pkg/webui/statesId.go

@@ -66,7 +66,6 @@ func handleStatesIdPOST(db *database.DB) http.Handler {
 		if !verifyCSRFToken(w, r) {
 			return
 		}
-		action := r.FormValue("action")
 		var stateId uuid.UUID
 		if err := stateId.Parse(r.PathValue("id")); err != nil {
 			errorResponse(w, r, http.StatusBadRequest, err)
@@ -87,6 +86,7 @@ func handleStatesIdPOST(db *database.DB) http.Handler {
 			errorResponse(w, r, http.StatusInternalServerError, err)
 			return
 		}
+		action := r.FormValue("action")
 		switch action {
 		case "delete":
 			errorResponse(w, r, http.StatusNotImplemented, err)
@@ -121,6 +121,16 @@ func handleStatesIdPOST(db *database.DB) http.Handler {
 				})
 				return
 			}
+		case "unlock":
+			if err := db.ForceUnlock(state); err != nil {
+				errorResponse(w, r, http.StatusInternalServerError, err)
+				return
+			}
+			state.Lock = nil
+		default:
+			errorResponse(w, r, http.StatusBadRequest, err)
+			return
+		}
 		render(w, statesIdTemplate, http.StatusOK, StatesIdPage{
 			Page: makePage(r, &Page{
 				Section: "states",
@@ -130,8 +140,5 @@ func handleStatesIdPOST(db *database.DB) http.Handler {
 			Usernames: usernames,
 			Versions:  versions,
 		})
-		default:
-			errorResponse(w, r, http.StatusBadRequest, err)
-		}
 	})
 }