package api

import (
	"errors"
	"net/http"

	"git.fabledsword.com/bvandeusen/minstrel/internal/apierror"
	"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
)

// handleGetMe returns the authenticated user's profile shape — id,
// username, display_name, email, is_admin. Mirrors the response shape
// of PUT /api/me/profile so the Android Settings → Profile screen
// (and Flutter's equivalent) can read its starting state from a GET
// before the user has done a first save.
//
// Drift #578 fix: this previously emitted the narrower UserView
// (id, username, is_admin only). Android's MeApi.getProfile() deser-
// ialised into MyProfileWire and saw display_name=null, email=null
// on every read — wiping the form fields on every Settings open.
// Saving from that blank state then submitted empty strings, which
// handleUpdateMyProfile treats as "clear to NULL" — DESTROYING the
// user's stored display_name + email. Returning the full profile
// shape here closes the loop. Web (User type narrower than this
// response) keeps working via TypeScript structural typing — the
// extra fields are ignored.
func (h *handlers) handleGetMe(w http.ResponseWriter, r *http.Request) {
	user, ok := auth.UserFromContext(r.Context())
	if !ok {
		// Hitting /me without RequireUser in front of it is a routing bug;
		// it can't happen in real traffic.
		h.logger.Error("api: /me reached without authenticated user")
		writeErr(w, apierror.InternalMsg("missing auth context", errors.New("missing auth context")))
		return
	}
	writeJSON(w, http.StatusOK, profileViewFromUser(user))
}