package main

import (
	"context"
	"strings"
	"testing"

	"github.com/kami/maven/internal/router"
)

// The list she read at the mic is not the list a browser is looking at
// (Vikunja #45 step 3). The clarify store was keyed per reach in #466; the
// dialogue session was still one slot for the box, so "второй" typed on the web
// closed the second task she had recited out loud.
func TestCandidatesDoNotCrossReaches(t *testing.T) {
	h, st, _ := newClarifyHandler(t)
	voiceCtx := withDialogueID(context.Background(), dialogueIDFor(sourceVoice, ""))
	webCtx := withDialogueID(context.Background(), dialogueIDFor(sourceText, "web"))

	ids := seedTasks(t, st, "купить хлеб", "позвонить маме")
	putCandidates(h, voiceCtx, ids, "купить хлеб", "позвонить маме")

	if reply, handled := h.resolveCandidate(webCtx, "первую сделал", sourceText); handled {
		t.Fatalf("a web turn picked from the list she read aloud: %q", reply)
	}
	live, err := st.ListTasks(context.Background(), "live")
	if err != nil {
		t.Fatalf("list tasks: %v", err)
	}
	if len(live) != 2 {
		t.Fatalf("%d tasks live, want 2 — the web turn moved one", len(live))
	}
	// The reach that was offered the list still owns it.
	if _, handled := h.resolveCandidate(voiceCtx, "первую сделал", sourceVoice); !handled {
		t.Fatal("the mic lost its own list")
	}
}

// A selection writes a fact, so the fact must name the reach the words arrived
// on. It said "tap:voice" for a typed turn.
func TestCandidateProvenanceFollowsTheReach(t *testing.T) {
	h, st, _ := newClarifyHandler(t)
	ctx := withDialogueID(context.Background(), dialogueIDFor(sourceText, "web"))
	ids := seedTasks(t, st, "купить хлеб")
	putCandidates(h, ctx, ids, "купить хлеб")

	if _, handled := h.resolveCandidate(ctx, "первую сделал", sourceText); !handled {
		t.Fatal("the pick was not acted on")
	}
	done, err := st.ListTasks(context.Background(), "done")
	if err != nil {
		t.Fatalf("list tasks: %v", err)
	}
	if len(done) != 1 {
		t.Fatalf("%d tasks done, want 1", len(done))
	}
	if by := done[0].ResolvedBy; by != string(sourceText) {
		t.Errorf("resolved_by = %q, want %q", by, sourceText)
	}
}

// Anaphora is per reach too: an ellipsis typed on the web must not continue the
// question he asked at the mic. Both surfaces stay usable at once, which is the
// case a single-owner box actually hits — a phone open while he talks.
func TestAnaphoraDoesNotCrossReaches(t *testing.T) {
	h, _, _ := newClarifyHandler(t)
	voiceCtx := withDialogueID(context.Background(), dialogueIDFor(sourceVoice, ""))
	webCtx := withDialogueID(context.Background(), dialogueIDFor(sourceText, "web"))
	now := h.now()

	h.rememberTurn(voiceCtx, nil, router.Decision{
		Intent: router.IntentQuery, Utterance: "во сколько у меня встреча",
	}, now)

	if sess := h.dialogueSessions.Get(dialogueIDOf(webCtx), now); sess != nil {
		t.Fatalf("the web reach inherited the mic's turn: %+v", sess)
	}
	sess := h.dialogueSessions.Get(dialogueIDOf(voiceCtx), now)
	if sess == nil || !strings.Contains(sess.Slots.Text, "встреча") {
		t.Fatalf("the mic lost its own turn: %+v", sess)
	}
}