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path: root/internal/api/stories_test.go
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package api

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/thepeterstone/claudomator/internal/task"
)

func TestCreateStory_API(t *testing.T) {
	srv, _ := testServer(t)

	body := `{"name":"My Story","project_id":"proj-1"}`
	req := httptest.NewRequest("POST", "/api/stories", bytes.NewBufferString(body))
	req.Header.Set("Content-Type", "application/json")
	w := httptest.NewRecorder()
	srv.mux.ServeHTTP(w, req)

	if w.Code != http.StatusCreated {
		t.Fatalf("expected 201, got %d: %s", w.Code, w.Body.String())
	}
	var st task.Story
	if err := json.NewDecoder(w.Body).Decode(&st); err != nil {
		t.Fatalf("decode response: %v", err)
	}
	if st.Name != "My Story" {
		t.Errorf("Name: want 'My Story', got %q", st.Name)
	}
	if st.ID == "" {
		t.Error("ID should be auto-generated")
	}
	if st.Status != task.StoryPending {
		t.Errorf("Status: want PENDING, got %q", st.Status)
	}
}

func TestGetStory_API(t *testing.T) {
	srv, _ := testServer(t)

	// Create a story first.
	body := `{"name":"Get Me"}`
	req := httptest.NewRequest("POST", "/api/stories", bytes.NewBufferString(body))
	req.Header.Set("Content-Type", "application/json")
	w := httptest.NewRecorder()
	srv.mux.ServeHTTP(w, req)
	if w.Code != http.StatusCreated {
		t.Fatalf("create story: expected 201, got %d", w.Code)
	}
	var created task.Story
	json.NewDecoder(w.Body).Decode(&created)

	// Fetch it.
	req2 := httptest.NewRequest("GET", "/api/stories/"+created.ID, nil)
	w2 := httptest.NewRecorder()
	srv.mux.ServeHTTP(w2, req2)

	if w2.Code != http.StatusOK {
		t.Fatalf("get story: expected 200, got %d: %s", w2.Code, w2.Body.String())
	}
	var got task.Story
	if err := json.NewDecoder(w2.Body).Decode(&got); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if got.ID != created.ID {
		t.Errorf("ID: want %q, got %q", created.ID, got.ID)
	}
	if got.Name != "Get Me" {
		t.Errorf("Name: want 'Get Me', got %q", got.Name)
	}
}

func TestAddTaskToStory_AutoWiresDependsOn(t *testing.T) {
	srv, _ := testServer(t)

	// Create a story.
	storyBody := `{"name":"Story For Tasks"}`
	req := httptest.NewRequest("POST", "/api/stories", bytes.NewBufferString(storyBody))
	req.Header.Set("Content-Type", "application/json")
	w := httptest.NewRecorder()
	srv.mux.ServeHTTP(w, req)
	if w.Code != http.StatusCreated {
		t.Fatalf("create story: %d %s", w.Code, w.Body.String())
	}
	var story task.Story
	json.NewDecoder(w.Body).Decode(&story)

	addTask := func(name string) *task.Task {
		body := `{"name":"` + name + `","agent":{"type":"claude","instructions":"do it"}}`
		r := httptest.NewRequest("POST", "/api/stories/"+story.ID+"/tasks", bytes.NewBufferString(body))
		r.Header.Set("Content-Type", "application/json")
		wr := httptest.NewRecorder()
		srv.mux.ServeHTTP(wr, r)
		if wr.Code != http.StatusCreated {
			t.Fatalf("add task %s: expected 201, got %d: %s", name, wr.Code, wr.Body.String())
		}
		var tk task.Task
		json.NewDecoder(wr.Body).Decode(&tk)
		return &tk
	}

	task1 := addTask("Task 1")
	task2 := addTask("Task 2")
	task3 := addTask("Task 3")

	// task1 has no dependencies.
	if len(task1.DependsOn) != 0 {
		t.Errorf("task1.DependsOn: want [], got %v", task1.DependsOn)
	}
	// task2 depends on task1.
	if len(task2.DependsOn) != 1 || task2.DependsOn[0] != task1.ID {
		t.Errorf("task2.DependsOn: want [%s], got %v", task1.ID, task2.DependsOn)
	}
	// task3 depends on task2.
	if len(task3.DependsOn) != 1 || task3.DependsOn[0] != task2.ID {
		t.Errorf("task3.DependsOn: want [%s], got %v", task2.ID, task3.DependsOn)
	}
}

func TestBuildStoryElaboratePrompt(t *testing.T) {
	prompt := buildStoryElaboratePrompt()
	checks := []struct {
		label string
		want  string
	}{
		{"schema: name field", `"name"`},
		{"schema: branch_name field", `"branch_name"`},
		{"schema: tasks field", `"tasks"`},
		{"schema: validation field", `"validation"`},
		{"rule: git push", "git push origin"},
		{"rule: sequential subtasks", "sequentially"},
		{"rule: specific file paths", "file paths"},
	}
	for _, c := range checks {
		if !strings.Contains(prompt, c.want) {
			t.Errorf("%s: prompt should contain %q", c.label, c.want)
		}
	}
}

func TestHandleStoryApprove_WiresDepends(t *testing.T) {
	srv, _ := testServer(t)

	body := `{
		"name": "My Story",
		"branch_name": "story/my-story",
		"tasks": [
			{"name": "Task 1", "instructions": "do task 1", "subtasks": []},
			{"name": "Task 2", "instructions": "do task 2", "subtasks": []},
			{"name": "Task 3", "instructions": "do task 3", "subtasks": []}
		],
		"validation": {"type": "build", "steps": ["go build ./..."], "success_criteria": "compiles"}
	}`
	req := httptest.NewRequest("POST", "/api/stories/approve", bytes.NewBufferString(body))
	req.Header.Set("Content-Type", "application/json")
	w := httptest.NewRecorder()
	srv.mux.ServeHTTP(w, req)

	if w.Code != http.StatusCreated {
		t.Fatalf("expected 201, got %d: %s", w.Code, w.Body.String())
	}

	var resp struct {
		Story   task.Story `json:"story"`
		TaskIDs []string   `json:"task_ids"`
	}
	if err := json.NewDecoder(w.Body).Decode(&resp); err != nil {
		t.Fatalf("decode response: %v", err)
	}
	if len(resp.TaskIDs) != 3 {
		t.Fatalf("expected 3 task IDs, got %d", len(resp.TaskIDs))
	}
	if resp.Story.Name != "My Story" {
		t.Errorf("story name: want 'My Story', got %q", resp.Story.Name)
	}

	// Verify depends_on chain via the store.
	store := srv.store
	task1, err := store.GetTask(resp.TaskIDs[0])
	if err != nil {
		t.Fatalf("GetTask[0]: %v", err)
	}
	task2, err := store.GetTask(resp.TaskIDs[1])
	if err != nil {
		t.Fatalf("GetTask[1]: %v", err)
	}
	task3, err := store.GetTask(resp.TaskIDs[2])
	if err != nil {
		t.Fatalf("GetTask[2]: %v", err)
	}

	if len(task1.DependsOn) != 0 {
		t.Errorf("task1.DependsOn: want [], got %v", task1.DependsOn)
	}
	if len(task2.DependsOn) != 1 || task2.DependsOn[0] != task1.ID {
		t.Errorf("task2.DependsOn: want [%s], got %v", task1.ID, task2.DependsOn)
	}
	if len(task3.DependsOn) != 1 || task3.DependsOn[0] != task2.ID {
		t.Errorf("task3.DependsOn: want [%s], got %v", task2.ID, task3.DependsOn)
	}
}