package configread

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

func TestReadTaskTrunkConcurrency(t *testing.T) {
	for _, tc := range []struct {
		name, trunks string
		valid        bool
	}{
		{"objects", `[{"trunk_id":"12","concurrency":5},{"trunk_id":"15","concurrency":5}]`, true},
		{"disabled", `[{"trunk_id":"12","concurrency":0}]`, true},
		{"old strings", `["12"]`, false},
		{"missing concurrency", `[{"trunk_id":"12"}]`, false},
		{"negative", `[{"trunk_id":"12","concurrency":-1}]`, false},
		{"duplicate IDs", `[{"trunk_id":"12","concurrency":1},{"trunk_id":"12","concurrency":2}]`, false},
	} {
		t.Run(tc.name, func(t *testing.T) {
			var task map[string]json.RawMessage
			if err := json.Unmarshal(example(t, "config-read-task-asr"), &task); err != nil {
				t.Fatal(err)
			}
			task["allowed_trunk_ids"] = json.RawMessage(tc.trunks)
			body, err := json.Marshal(task)
			if err != nil {
				t.Fatal(err)
			}
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				w.Header().Set("Content-Type", "application/json")
				switch r.URL.Path {
				case "/internal/v1/dispatcher/task/task-asr":
					_, _ = w.Write(body)
				case "/internal/v1/dispatcher/tenant/1001/quota":
					_, _ = w.Write(example(t, "config-read-quota"))
				case "/internal/v1/dispatcher/ai-providers":
					_, _ = w.Write(example(t, "config-read-providers"))
				default:
					http.NotFound(w, r)
				}
			}))
			defer server.Close()
			client, err := NewClient(server.URL, "c046b893-8628-4589-ae50-619d049248a6", "isolated-secret", server.Client())
			if err != nil {
				t.Fatal(err)
			}
			providers, err := client.ReadProviders(context.Background())
			if err != nil {
				t.Fatal(err)
			}
			snapshot, err := client.ReadTask(context.Background(), "task-asr", 1001, approvedSIP(t), providers)
			if (err == nil) != tc.valid {
				t.Fatalf("accepted=%t, want %t: %v", err == nil, tc.valid, err)
			}
			if !tc.valid {
				return
			}
			encoded, err := json.Marshal(snapshot.Task)
			if err != nil {
				t.Fatal(err)
			}
			var roundTrip map[string]json.RawMessage
			if err := json.Unmarshal(encoded, &roundTrip); err != nil {
				t.Fatal(err)
			}
			if string(roundTrip["allowed_trunk_ids"]) != tc.trunks {
				t.Fatalf("trunk limits changed: %s", roundTrip["allowed_trunk_ids"])
			}
		})
	}
}