using Microsoft.Extensions.Options;
using Serilog;
using System;
using System.Collections.Generic;
using System.Net.Http.Headers;
using System.Net.Http.Json;
using System.Text;
using TriliumMind.Data.Entities;
using TriliumMind.Models;

namespace TriliumMind.Services;

public class TriliumService
{
    private readonly Serilog.ILogger _log;
    private readonly AppConfigs _configs;
    public TriliumService(AppConfigs configs)
    {
        _log = Log.ForContext<TriliumService>();
        _configs = configs;
    }

    public async Task<IEnumerable<JiraIssue>> PublishNotesAsync(IEnumerable<JiraIssue> jiraIssues)
    {
        var issuesToPatch = new List<JiraIssue>();
        var issuesToPost = new List<JiraIssue>();
        foreach (var jiraIssue in jiraIssues)
        {
            if(jiraIssue.Published > DateTimeOffset.MinValue)
                issuesToPatch.Add(jiraIssue);
            else
                issuesToPost.Add(jiraIssue);
            break;
        }

        // Post note does not support attribute, so additional work is required.
        var postedNotes = await PostNotesAsync(issuesToPost);
        //issuesToPatch.AddRange(postedIssues);
        //var patchedIssues = await PatchNotesAsync(issuesToPatch);

        return issuesToPatch;
    }

    public async Task<IEnumerable<TriliumNote>> PostNotesAsync(IEnumerable<JiraIssue> jiraIssues)
    {
        var baseUrl = _configs.AppSettings.Trilium.EtapiBaseUrl;
        var token = _configs.AppSettings.Trilium.EtapiToken;
        var apiUrl = $"{baseUrl}/create-note";

        var triliumNotes = new List<TriliumNote>();
        var lastRequestTime = DateTimeOffset.MinValue;
        foreach (var jiraIssue in jiraIssues) 
        {
            var timeSinceLastRequest = DateTimeOffset.UtcNow - lastRequestTime;
            if (timeSinceLastRequest < TimeSpan.FromSeconds(1))
            {
                var delayTime = TimeSpan.FromSeconds(1) - timeSinceLastRequest;
                await Task.Delay(delayTime);
            }

            var note = new TriliumNote(jiraIssue, GetParentPageId(jiraIssue.Status));
            var request = new HttpRequestMessage(HttpMethod.Post, apiUrl);
            request.Headers.TryAddWithoutValidation("Authorization", token);

            request.Content = note.ToNoteContent();
            using var client = new HttpClient();
            var response = await client.SendAsync(request);
            response.EnsureSuccessStatusCode();
            
            // Deserialize to TriliumResponse
            var triliumResponse = await response.Content.ReadFromJsonAsync<TriliumResponse>();
            lastRequestTime = DateTimeOffset.UtcNow;
            note.ObjectId = triliumResponse?.note.noteId;
            note.Published = lastRequestTime;
            note.TriliumNoteData = triliumResponse;
            triliumNotes.Add(note);
        }

        return triliumNotes;
    }

    public Task<IEnumerable<JiraIssue>> PatchNotesAsync(IEnumerable<JiraIssue> jiraIssues)
    {
        throw new NotImplementedException();
        // Update attributes
    }

    public async Task<string> FetchPageContentsAsync(Issue issue)
    {
        var baseUrl = _configs.AppSettings.Trilium.EtapiBaseUrl;
        var pageId = "QxxFqCNAtIOy";
        var requstUrl = $"{baseUrl}/notes/{pageId}/content";

        var client = new HttpClient();
        var request = new HttpRequestMessage(HttpMethod.Get, requstUrl);
        request.Headers.Add("Authorization", "");
        var response = await client.SendAsync(request);
        response.EnsureSuccessStatusCode();
        Console.WriteLine(await response.Content.ReadAsStringAsync());

        // Return new page ID after creating a new page
        return "";
    }

    private string GetParentPageId(string issueStatus)
    {
        var readyPageId = _configs.AppSettings.Trilium.JiraOpenedIssuePageId;
        var workingPageId = _configs.AppSettings.Trilium.JiraWorkingIssuePageId;
        var resolvedPageId = _configs.AppSettings.Trilium.JiraResolvedIssuePageId;
        string pageId = string.Empty;
        if (issueStatus.Equals("Open", StringComparison.OrdinalIgnoreCase)
            || issueStatus.Equals("Reopend", StringComparison.OrdinalIgnoreCase))
        {
            pageId = readyPageId;
        }
        else if (issueStatus.Equals("In progress", StringComparison.OrdinalIgnoreCase))
        {
            pageId = workingPageId;
        }
        else
        {
            pageId = resolvedPageId;
        }
        return pageId;
    }
}