using Microsoft.Extensions.Configuration;

namespace Health.Infrastructure.Data;

/// <summary>
/// 开发环境测试数据填充。生产环境不要调用！
/// 开关：DEVDATA_ENABLED=true 才会执行
/// </summary>
public static class DevDataSeeder
{
    public static async Task SeedIfEnabled(AppDbContext db, IConfiguration config)
    {
        // 通过环境变量控制：DEVDATA_ENABLED=true 才填充测试数据
        var enabled = config["DEVDATA_ENABLED"]?.ToLowerInvariant();
        if (enabled != "true") return;

        // 检查是否已有测试用户（避免重复填充）
        if (db.Users.Any(u => u.Phone == "13800000001")) return;

        // ---- 创建测试患者 ----
        var user = new User
        {
            Id = Guid.NewGuid(), Phone = "13800000001", Name = "张三",
            Gender = "男", BirthDate = new DateOnly(1970, 3, 15),
            CreatedAt = DateTime.UtcNow, UpdatedAt = DateTime.UtcNow,
        };
        db.Users.Add(user);
        await db.SaveChangesAsync();

        // ---- 健康档案 ----
        db.HealthArchives.Add(new HealthArchive
        {
            Id = Guid.NewGuid(), UserId = user.Id,
            Diagnosis = "冠心病", SurgeryType = "PCI支架植入术",
            SurgeryDate = new DateOnly(2026, 3, 15),
            Allergies = ["青霉素"], DietRestrictions = ["低盐", "低脂"],
            ChronicDiseases = ["高血压", "高血脂"],
            FamilyHistory = "父亲冠心病",
            UpdatedAt = DateTime.UtcNow,
        });

        // ---- 健康数据（过去 7 天）----
        var random = new Random(42);
        for (int i = 7; i >= 0; i--)
        {
            var date = DateTime.UtcNow.AddDays(-i);
            // 血压
            db.HealthRecords.Add(new HealthRecord
            {
                Id = Guid.NewGuid(), UserId = user.Id, MetricType = HealthMetricType.BloodPressure,
                Systolic = 120 + random.Next(-5, 15), Diastolic = 75 + random.Next(-5, 10),
                Unit = "mmHg", Source = HealthRecordSource.AiEntry,
                IsAbnormal = false, RecordedAt = date,
            });
            // 心率
            db.HealthRecords.Add(new HealthRecord
            {
                Id = Guid.NewGuid(), UserId = user.Id, MetricType = HealthMetricType.HeartRate,
                Value = 68 + random.Next(-5, 10), Unit = "次/分",
                Source = HealthRecordSource.AiEntry,
                IsAbnormal = false, RecordedAt = date,
            });
            // 血糖
            db.HealthRecords.Add(new HealthRecord
            {
                Id = Guid.NewGuid(), UserId = user.Id, MetricType = HealthMetricType.Glucose,
                Value = 5.0m + (decimal)(random.NextDouble() * 1.5),
                Unit = "mmol/L", Source = HealthRecordSource.AiEntry,
                IsAbnormal = false, RecordedAt = date,
            });
            // 血氧
            db.HealthRecords.Add(new HealthRecord
            {
                Id = Guid.NewGuid(), UserId = user.Id, MetricType = HealthMetricType.SpO2,
                Value = 96 + random.Next(0, 3), Unit = "%",
                Source = HealthRecordSource.AiEntry,
                IsAbnormal = false, RecordedAt = date,
            });
        }
        // 一条异常血压
        db.HealthRecords.Add(new HealthRecord
        {
            Id = Guid.NewGuid(), UserId = user.Id, MetricType = HealthMetricType.BloodPressure,
            Systolic = 148, Diastolic = 92, Unit = "mmHg",
            Source = HealthRecordSource.AiEntry, IsAbnormal = true,
            RecordedAt = DateTime.UtcNow.AddDays(-1),
        });

        // ---- 用药计划 ----
        db.Medications.Add(new Medication
        {
            Id = Guid.NewGuid(), UserId = user.Id, Name = "阿司匹林", Dosage = "100mg",
            Frequency = MedicationFrequency.Daily, TimeOfDay = [new TimeOnly(8, 0)],
            Source = MedicationSource.Prescription, IsActive = true, StartDate = new DateOnly(2026, 4, 1),
        });
        db.Medications.Add(new Medication
        {
            Id = Guid.NewGuid(), UserId = user.Id, Name = "阿托伐他汀", Dosage = "20mg",
            Frequency = MedicationFrequency.Daily, TimeOfDay = [new TimeOnly(20, 0)],
            Source = MedicationSource.Prescription, IsActive = true, StartDate = new DateOnly(2026, 4, 1),
        });

        // ---- 运动计划 ----
        var monday = DateOnly.FromDateTime(DateTime.Now.AddDays(-(int)DateTime.Now.DayOfWeek + 1));
        var plan = new ExercisePlan { Id = Guid.NewGuid(), UserId = user.Id, WeekStartDate = monday };
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 0, ExerciseType = "散步", DurationMinutes = 30, IsCompleted = true, CompletedAt = DateTime.UtcNow.AddDays(-1) });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 1, ExerciseType = "慢跑", DurationMinutes = 20 });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 2, ExerciseType = "散步", DurationMinutes = 30 });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 3, IsRestDay = true });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 4, ExerciseType = "太极", DurationMinutes = 40 });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 5, IsRestDay = true });
        plan.Items.Add(new ExercisePlanItem { Id = Guid.NewGuid(), DayOfWeek = 6, ExerciseType = "散步", DurationMinutes = 30 });
        db.ExercisePlans.Add(plan);

        // ---- 饮食记录 ----
        var lunch = new DietRecord
        {
            Id = Guid.NewGuid(), UserId = user.Id, MealType = MealType.Lunch,
            TotalCalories = 644, HealthScore = 3, RecordedAt = DateOnly.FromDateTime(DateTime.Now),
        };
        lunch.FoodItems.Add(new DietFoodItem { Id = Guid.NewGuid(), Name = "米饭", Portion = "约1碗", Calories = 174, SortOrder = 1 });
        lunch.FoodItems.Add(new DietFoodItem { Id = Guid.NewGuid(), Name = "红烧肉", Portion = "约5块", Calories = 470, Warning = "脂肪含量偏高", SortOrder = 2 });
        db.DietRecords.Add(lunch);

        // ---- 复查计划 ----
        db.FollowUps.Add(new FollowUp
        {
            Id = Guid.NewGuid(), UserId = user.Id, Title = "心内科复查",
            DoctorName = "王建国", Department = "心血管内科",
            ScheduledAt = DateTime.UtcNow.AddDays(3), Status = FollowUpStatus.Upcoming,
        });
        db.FollowUps.Add(new FollowUp
        {
            Id = Guid.NewGuid(), UserId = user.Id, Title = "术后3周复查",
            DoctorName = "王建国", Department = "心血管内科",
            ScheduledAt = DateTime.UtcNow.AddDays(-14), Status = FollowUpStatus.Completed,
        });

        await db.SaveChangesAsync();
        Console.WriteLine($"[DEV] 测试数据已填充：用户 {user.Phone}");
    }
}
