using System.Text.Json;
using Complyance.SDK;
using Complyance.SDK.Models;
using SysEnv = System.Environment;

class PurchaseInvoiceRetrieval
{
    static async Task Main(string[] args)
    {
        var sources = new List<Source>
        {
            new Source("my-source", "1.0.0", SourceType.FirstParty)
        };

        var config = new SDKConfig(
            SysEnv.GetEnvironmentVariable("COMPLYANCE_API_KEY") ?? "",
            Complyance.SDK.Models.Environment.Sandbox,
            sources
        );

        GETSUnifySDK.Configure(config);

        await GetSinglePurchaseInvoice();
        await PollPurchaseInvoicesByDateRange();
        await PollPurchaseInvoicesWithCursor();
    }

    static async Task GetSinglePurchaseInvoice()
    {
        string documentId = "01KT0SHAH3K21158AC72ZXVX4Z";
        var invoice = await GETSUnifySDK.GetPurchaseInvoiceAsync(documentId);

        Console.WriteLine("Document ID: " + invoice.DocumentId);
        Console.WriteLine("Country: " + invoice.Country);
        Console.WriteLine("State: " + invoice.State);
        Console.WriteLine("Is Terminal: " + invoice.IsTerminal);
        Console.WriteLine("Document Number: " + invoice.DocumentNumber);
        Console.WriteLine("Compliance UUID: " + invoice.Compliance?.Uuid);
    }

    static async Task PollPurchaseInvoicesByDateRange()
    {
        var filters = new Dictionary<string, string>
        {
            { "from", "2026-06-01" },
            { "to", "2026-06-08" },
            { "limit", "5" }
        };

        var result = await GETSUnifySDK.ListPurchaseInvoicesAsync(filters);

        if (result["data"] is not JsonElement data) return;

        var items = data.GetProperty("items");
        Console.WriteLine("Items found: " + items.GetArrayLength());
        Console.WriteLine("Has more: " + data.GetProperty("hasMore").GetBoolean());

        foreach (var item in items.EnumerateArray())
        {
            Console.WriteLine(
                "- " + item.GetProperty("documentId").GetString()
                + " " + item.GetProperty("invoiceNumber").GetString()
                + " " + item.GetProperty("supplierName").GetString()
            );
        }
    }

    static async Task PollPurchaseInvoicesWithCursor()
    {
        var filters = new Dictionary<string, string>
        {
            { "from", "2026-06-01" },
            { "limit", "100" }
        };

        var firstPage = await GETSUnifySDK.ListPurchaseInvoicesAsync(filters);

        if (firstPage["data"] is not JsonElement data) return;

        var items = data.GetProperty("items");
        var nextCursor = data.TryGetProperty("nextCursor", out var cursorProp)
            ? cursorProp.GetString()
            : null;

        Console.WriteLine("First page items: " + items.GetArrayLength());
        Console.WriteLine("Next cursor: " + nextCursor);

        if (!string.IsNullOrEmpty(nextCursor))
        {
            var cursorFilters = new Dictionary<string, string>
            {
                { "from", "2026-06-01" },
                { "limit", "100" },
                { "cursor", nextCursor }
            };

            var nextPage = await GETSUnifySDK.ListPurchaseInvoicesAsync(cursorFilters);

            if (nextPage["data"] is not JsonElement nextData) return;

            var nextItems = nextData.GetProperty("items");
            Console.WriteLine("Next page items: " + nextItems.GetArrayLength());
            Console.WriteLine("Has more: " + nextData.GetProperty("hasMore").GetBoolean());
        }
    }
}