using System.Text.Json.Serialization;

namespace TikTokApi.Models;

#region Campaign Payloads

/// <summary>
/// Create a TikTok campaign.
/// TikTok hierarchy: Campaign → Ad Group → Ad (same as Google, unlike Meta's Ad Set).
/// Campaign sets the objective and budget type.
/// </summary>
public sealed class CreateCampaignPayload
{
    public string Name { get; set; } = string.Empty;
    public TikTokObjective Objective { get; set; } = TikTokObjective.Traffic;

    /// <summary>
    /// Budget mode. TikTok supports BUDGET_MODE_DAY and BUDGET_MODE_TOTAL at campaign level.
    /// </summary>
    public TikTokBudgetMode BudgetMode { get; set; } = TikTokBudgetMode.Day;

    /// <summary>
    /// Budget amount in account currency (float, e.g., 50.00).
    /// Minimum varies by country (typically $50/day for campaign-level budget).
    /// Null = no campaign budget (budget set at ad group level).
    /// </summary>
    public decimal? Budget { get; set; }

    /// <summary>
    /// Special industry categories: HOUSING, CREDIT, EMPLOYMENT.
    /// Empty = none (most campaigns).
    /// </summary>
    public List<string> SpecialIndustries { get; set; } = new();

    public TikTokCampaignStatus Status { get; set; } = TikTokCampaignStatus.Disable;
}

public sealed class GetCampaignPayload
{
    public string CampaignId { get; set; } = string.Empty;
}

public sealed class UpdateCampaignPayload
{
    public string CampaignId { get; set; } = string.Empty;
    public string? Name { get; set; }
    public TikTokCampaignStatus? Status { get; set; }
    public decimal? Budget { get; set; }
}

public sealed class ListCampaignsPayload
{
    /// <summary>
    /// Filter by status. Null = return all.
    /// TikTok supports filtering by multiple statuses.
    /// </summary>
    public TikTokCampaignStatus? StatusFilter { get; set; }

    public int PageSize { get; set; } = 50;
    public int Page { get; set; } = 1;
}

#endregion

#region Ad Group Payloads

/// <summary>
/// Create a TikTok Ad Group (equivalent to Google Ad Group / Meta Ad Set).
/// Ad Groups define targeting, budget, schedule, placement, and bid strategy.
/// </summary>
public sealed class CreateAdGroupPayload
{
    public string CampaignId { get; set; } = string.Empty;
    public string Name { get; set; } = string.Empty;

    /// <summary>Budget amount in account currency (float).</summary>
    public decimal Budget { get; set; }

    public TikTokBudgetMode BudgetMode { get; set; } = TikTokBudgetMode.Day;

    /// <summary>Schedule start time in UTC (ISO 8601 / "yyyy-MM-dd HH:mm:ss").</summary>
    public string? ScheduleStartTime { get; set; }

    /// <summary>Schedule end time in UTC. Null = no end date.</summary>
    public string? ScheduleEndTime { get; set; }

    public TikTokOptimizationGoal OptimizationGoal { get; set; } = TikTokOptimizationGoal.Click;

    public TikTokBillingEvent BillingEvent { get; set; } = TikTokBillingEvent.CPC;

    /// <summary>Bid amount in account currency. Required for non-auto-bid strategies.</summary>
    public decimal? BidPrice { get; set; }

    /// <summary>
    /// Placement: list of placements. Default = automatic (PLACEMENT_TYPE_AUTOMATIC).
    /// Options: PLACEMENT_TIKTOK, PLACEMENT_PANGLE, PLACEMENT_GLOBALAPP_BUNDLE
    /// </summary>
    public List<string> Placements { get; set; } = new();

    /// <summary>Target location codes (country/region codes).</summary>
    public List<string> LocationIds { get; set; } = new();

    public TikTokCampaignStatus Status { get; set; } = TikTokCampaignStatus.Disable;
}

#endregion

#region Ad Account (Advertiser) Payloads

/// <summary>
/// Create a new advertiser account under USIM's Business Center.
/// Endpoint: POST /bc/advertiser/create
/// Requires BC admin access.
/// </summary>
public sealed class CreateAdvertiserPayload
{
    /// <summary>Display name for the new advertiser account.</summary>
    public string Name { get; set; } = string.Empty;

    /// <summary>Currency code (e.g. "USD"). ISO 4217.</summary>
    public string Currency { get; set; } = "USD";

    /// <summary>
    /// Timezone string. TikTok uses Olson/IANA format.
    /// e.g., "America/Los_Angeles", "UTC", "Europe/London"
    /// </summary>
    public string Timezone { get; set; } = "America/Los_Angeles";

    /// <summary>Advertiser's company name.</summary>
    public string Company { get; set; } = string.Empty;

    /// <summary>Industry ID. Use /tool/industry/ endpoint to get valid IDs.</summary>
    public string? IndustryId { get; set; }

    /// <summary>Advertiser's contact email.</summary>
    public string? ContactEmail { get; set; }

    /// <summary>Advertiser's contact phone number.</summary>
    public string? ContactPhone { get; set; }
}

/// <summary>
/// List advertiser accounts under the Business Center.
/// Endpoint: GET /bc/advertiser/get
/// </summary>
public sealed class ListAdvertisersPayload
{
    public int PageSize { get; set; } = 50;
    public int Page { get; set; } = 1;
}

#endregion

#region Insights / Reporting Payloads

/// <summary>
/// Retrieve campaign/ad group/ad performance metrics.
/// TikTok Reporting API: POST /report/integrated/get/
/// </summary>
public sealed class ReportPayload
{
    /// <summary>
    /// Report type: BASIC, AUDIENCE, PLAYABLE_MATERIAL, CATALOG
    /// </summary>
    public string ReportType { get; set; } = "BASIC";

    /// <summary>
    /// Data level: AUCTION_CAMPAIGN, AUCTION_ADGROUP, AUCTION_AD
    /// </summary>
    public string DataLevel { get; set; } = "AUCTION_CAMPAIGN";

    /// <summary>
    /// Dimensions to group by (e.g., ["campaign_id", "stat_time_day"]).
    /// </summary>
    public List<string> Dimensions { get; set; } = new() { "campaign_id", "stat_time_day" };

    /// <summary>
    /// Metrics to query (e.g., ["spend", "impressions", "clicks", "cpc", "ctr"]).
    /// </summary>
    public List<string> Metrics { get; set; } = new() { "spend", "impressions", "clicks", "cpc", "ctr", "cpm" };

    /// <summary>Start date in format "YYYY-MM-DD".</summary>
    public string? StartDate { get; set; }

    /// <summary>End date in format "YYYY-MM-DD".</summary>
    public string? EndDate { get; set; }

    /// <summary>Use lifetime stats instead of date range.</summary>
    public bool Lifetime { get; set; } = false;

    /// <summary>
    /// Filters (e.g., [{"field_name":"campaign_ids","filter_type":"IN","filter_value":"[\"123\"]"}]).
    /// </summary>
    public List<ReportFilter>? Filters { get; set; }

    public int PageSize { get; set; } = 50;
    public int Page { get; set; } = 1;
}

public sealed class ReportFilter
{
    public string FieldName { get; set; } = string.Empty;
    public string FilterType { get; set; } = "IN";
    public string FilterValue { get; set; } = string.Empty;
}

#endregion

#region Fund Management Payloads

/// <summary>
/// Transfer funds to/from an advertiser account in the Business Center.
/// Endpoint: POST /bc/transfer/
/// This is a unique TikTok feature — direct fund management via API.
/// </summary>
public sealed class TransferFundsPayload
{
    /// <summary>Target advertiser account ID.</summary>
    public string AdvertiserId { get; set; } = string.Empty;

    /// <summary>Transfer type: "RECHARGE" (add funds) or "DEDUCT" (remove funds).</summary>
    public string TransferType { get; set; } = "RECHARGE";

    /// <summary>Amount to transfer in account currency.</summary>
    public decimal Amount { get; set; }
}

#endregion

#region Enums

/// <summary>
/// TikTok campaign objectives.
/// See: https://business-api.tiktok.com/portal/docs?id=1739381516454913
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum TikTokObjective
{
    /// <summary>REACH - Maximize ad reach</summary>
    Reach = 0,

    /// <summary>TRAFFIC - Drive traffic to website/app</summary>
    Traffic = 1,

    /// <summary>VIDEO_VIEWS - Maximize video views</summary>
    VideoViews = 2,

    /// <summary>LEAD_GENERATION - Collect leads via instant forms</summary>
    LeadGeneration = 3,

    /// <summary>COMMUNITY_INTERACTION - Grow followers and profile visits</summary>
    CommunityInteraction = 4,

    /// <summary>APP_PROMOTION - Drive app installs/re-engagement</summary>
    AppPromotion = 5,

    /// <summary>WEB_CONVERSIONS - Drive website conversions</summary>
    WebConversions = 6,

    /// <summary>PRODUCT_SALES - Drive catalog/shop sales</summary>
    ProductSales = 7
}

/// <summary>
/// TikTok campaign/ad group status values.
/// TikTok uses ENABLE/DISABLE rather than ACTIVE/PAUSED.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum TikTokCampaignStatus
{
    /// <summary>ENABLE - Running/active</summary>
    Enable = 0,

    /// <summary>DISABLE - Paused</summary>
    Disable = 1,

    /// <summary>DELETE - Soft-deleted</summary>
    Delete = 2
}

/// <summary>
/// TikTok budget modes.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum TikTokBudgetMode
{
    /// <summary>BUDGET_MODE_DAY - Daily budget</summary>
    Day = 0,

    /// <summary>BUDGET_MODE_TOTAL - Lifetime/total budget</summary>
    Total = 1,

    /// <summary>BUDGET_MODE_INFINITE - No budget limit (budget at ad group level)</summary>
    Infinite = 2
}

/// <summary>
/// TikTok billing events for ad groups.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum TikTokBillingEvent
{
    CPC = 0,
    CPM = 1,
    CPV = 2,
    OCPM = 3
}

/// <summary>
/// TikTok optimization goals for ad groups.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum TikTokOptimizationGoal
{
    Click = 0,
    Impression = 1,
    Reach = 2,
    VideoView = 3,
    Landing_Page_View = 4,
    Lead_Generation = 5,
    Convert = 6,
    Install = 7,
    Value = 8
}

#endregion