package tools_test

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"gitea.d-ma.be/mathias/gitea-mcp/internal/allowlist"
	"gitea.d-ma.be/mathias/gitea-mcp/internal/gitea"
	"gitea.d-ma.be/mathias/gitea-mcp/internal/tools"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestWorkflowRunListTool(t *testing.T) {
	tests := []struct {
		name      string
		input     string
		wantQuery map[string]string
		notQuery  []string
		respBody  string
		assert    func(t *testing.T, out string)
	}{
		{
			name:      "happy path defaults",
			input:     `{"owner":"mathias","name":"gitea-mcp"}`,
			wantQuery: map[string]string{"page": "1", "limit": "10"},
			respBody:  `{"total_count":2,"workflow_runs":[{"id":823,"status":"completed","conclusion":"success","head_sha":"dc907fb"},{"id":822,"status":"completed","conclusion":"success","head_sha":"c4bd339"}]}`,
			assert: func(t *testing.T, out string) {
				assert.Contains(t, out, `"id":823`)
				assert.Contains(t, out, `"total":2`)
			},
		},
		{
			name:      "head_sha short filter",
			input:     `{"owner":"mathias","name":"gitea-mcp","head_sha":"dc907fb"}`,
			wantQuery: map[string]string{"head_sha": "dc907fb"},
			respBody:  `{"total_count":1,"workflow_runs":[{"id":823,"status":"completed","conclusion":"success","head_sha":"dc907fb"}]}`,
			assert: func(t *testing.T, out string) {
				assert.Contains(t, out, `"id":823`)
			},
		},
		{
			name:      "status filter",
			input:     `{"owner":"mathias","name":"gitea-mcp","status":"in_progress"}`,
			wantQuery: map[string]string{"status": "in_progress"},
			respBody:  `{"total_count":0,"workflow_runs":[]}`,
			assert: func(t *testing.T, out string) {
				assert.Contains(t, out, `"runs":[]`)
			},
		},
		{
			name:      "status=all is no-op",
			input:     `{"owner":"mathias","name":"gitea-mcp","status":"all"}`,
			notQuery:  []string{"status"},
			respBody:  `{"total_count":0,"workflow_runs":[]}`,
			assert:    func(t *testing.T, out string) {},
		},
		{
			name:      "branch filter",
			input:     `{"owner":"mathias","name":"gitea-mcp","branch":"main"}`,
			wantQuery: map[string]string{"branch": "main"},
			respBody:  `{"total_count":0,"workflow_runs":[]}`,
			assert:    func(t *testing.T, out string) {},
		},
	}
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				assert.Equal(t, http.MethodGet, r.Method)
				assert.Equal(t, "/api/v1/repos/mathias/gitea-mcp/actions/runs", r.URL.Path)
				q := r.URL.Query()
				for k, v := range tc.wantQuery {
					assert.Equal(t, v, q.Get(k), "query param %q", k)
				}
				for _, k := range tc.notQuery {
					assert.Equal(t, "", q.Get(k), "query param %q should be absent", k)
				}
				w.Header().Set("Content-Type", "application/json")
				_, _ = w.Write([]byte(tc.respBody))
			}))
			defer srv.Close()

			tool := tools.NewWorkflowRunList(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
			out, err := tool.Call(context.Background(), json.RawMessage(tc.input))
			require.NoError(t, err)
			tc.assert(t, string(out))
		})
	}
}

func TestWorkflowRunListAllowlistRejects(t *testing.T) {
	tool := tools.NewWorkflowRunList(gitea.NewClient("http://unused", ""), allowlist.New([]string{"mathias"}))
	_, err := tool.Call(context.Background(), json.RawMessage(`{"owner":"evil","name":"x"}`))
	require.Error(t, err)
}