package contracts

import (
	"encoding/json"
	"testing"
)

func TestTaskScheduleOptionalFieldsSchema(t *testing.T) {
	schema, err := CompileCurrent("http-task-detail.schema.json")
	if err != nil {
		t.Fatal(err)
	}
	for _, mode := range []string{"asr", "full"} {
		fixture, err := Files.ReadFile("schema/examples/config-read-task-" + mode + ".json")
		if err != nil {
			t.Fatal(err)
		}
		for _, tc := range []struct {
			name  string
			omit  []string
			set   map[string]any
			valid bool
		}{
			{name: "explicit null end and empty exclusions", valid: true},
			{name: "omitted end", omit: []string{"ends_at"}, valid: true},
			{name: "omitted exclusions", omit: []string{"excluded_dates"}, valid: true},
			{name: "both omitted", omit: []string{"ends_at", "excluded_dates"}, valid: true},
			{name: "explicit end and exclusions", set: map[string]any{"ends_at": "2026-12-31T20:00:00+08:00", "excluded_dates": []any{"2026-10-01"}}, valid: true},
			{name: "missing start", omit: []string{"starts_at"}},
			{name: "missing time zone", omit: []string{"time_zone"}},
			{name: "missing weekly windows", omit: []string{"weekly_windows"}},
			{name: "null exclusions", set: map[string]any{"excluded_dates": nil}},
			{name: "wrong exclusions type", set: map[string]any{"excluded_dates": "2026-10-01"}},
			{name: "invalid excluded date", set: map[string]any{"excluded_dates": []any{"2026-02-30"}}},
			{name: "duplicate exclusions", set: map[string]any{"excluded_dates": []any{"2026-10-01", "2026-10-01"}}},
			{name: "invalid end", set: map[string]any{"ends_at": "not-a-time"}},
			{name: "empty end", set: map[string]any{"ends_at": ""}},
			{name: "numeric end", set: map[string]any{"ends_at": 123}},
			{name: "unknown schedule property", set: map[string]any{"unknown": true}},
		} {
			t.Run(mode+"/"+tc.name, func(t *testing.T) {
				var doc map[string]any
				if err := json.Unmarshal(fixture, &doc); err != nil {
					t.Fatal(err)
				}
				schedule := doc["schedule"].(map[string]any)
				for _, field := range tc.omit {
					delete(schedule, field)
				}
				for field, value := range tc.set {
					schedule[field] = value
				}
				if err := schema.Validate(doc); (err == nil) != tc.valid {
					t.Fatalf("valid=%t, want %t: %v", err == nil, tc.valid, err)
				}
			})
		}
	}
}