package client

import (

"encoding/json"

"net/http"

"testing"

)

func TestTextToSpeech_SendsCorrectRequest(t *testing.T) {

c, _ := newTestClient(t, func(w http.ResponseWriter, r *http.Request) {

if r.URL.Path != "/v1/text-to-speech" {

t.Errorf("unexpected path: %s", r.URL.Path)

}

if r.Method != http.MethodPost {

t.Errorf("expected POST, got %s", r.Method)

}

var body TTSRequest

if err := json.NewDecoder(r.Body).Decode(&body); err != nil {

t.Fatalf("failed to decode request body: %v", err)

}

if body.VoiceID != "voice-1" {

t.Errorf("expected voice_id=voice-1, got %q", body.VoiceID)

}

if body.Text != "hello" {

t.Errorf("expected text=hello, got %q", body.Text)

}

w.Write([]byte("audio-bytes"))

})

audio, err := c.TextToSpeech(TTSRequest{VoiceID: "voice-1", Text: "hello", Model: "ssfm-v30"})

if err != nil {

t.Fatalf("unexpected error: %v", err)

}

if string(audio) != "audio-bytes" {

t.Errorf("unexpected audio response: %s", audio)

}

}

func TestTextToSpeech_ReturnsErrorOnAPIFailure(t *testing.T) {

c, _ := newTestClient(t, func(w http.ResponseWriter, r *http.Request) {

w.WriteHeader(http.StatusBadRequest)

w.Write([]byte(`{"message":"invalid voice_id"}`))

})

_, err := c.TextToSpeech(TTSRequest{VoiceID: "bad-id", Text: "hello"})

if err == nil {

t.Fatal("expected error, got nil")

}

}

func TestTextToSpeech_SendsOptionalFields(t *testing.T) {

seed := 42

volume := 150

c, _ := newTestClient(t, func(w http.ResponseWriter, r *http.Request) {

var body TTSRequest

json.NewDecoder(r.Body).Decode(&body)

if body.Prompt == nil {

t.Fatal("expected prompt to be set")

}

if body.Prompt.EmotionType != "smart" {

t.Errorf("expected emotion=smart, got %q", body.Prompt.EmotionType)

}

if body.Output == nil {

t.Fatal("expected output to be set")

}

if body.Output.Volume == nil || *body.Output.Volume != 150 {

t.Errorf("expected volume=150, got %v", body.Output.Volume)

}

if body.Seed == nil || *body.Seed != 42 {

t.Errorf("expected seed=42, got %v", body.Seed)

}

w.Write([]byte("ok"))

})

c.TextToSpeech(TTSRequest{

VoiceID: "v1",

Text: "hi",

Prompt: &TTSPrompt{EmotionType: "smart"},

Output: &TTSOutput{Volume: &volume},

Seed: &seed,

})

}