TEAMModelOS/TEAMModelOS.SDK/Models/Service/Common/TeacherService.cs

using Azure.Cosmos;
using Azure.Storage.Blobs.Models;
using Azure.Storage.Sas;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.IdentityModel.Tokens.Jwt;
using System.IO;
using System.Linq;
using System.Text.Json;
using System.Threading.Tasks;
using TEAMModelOS.Models;
using TEAMModelOS.SDK.Models;
using TEAMModelOS.SDK.DI;
using TEAMModelOS.SDK.Extension;
using TEAMModelOS.Filter;
using TEAMModelOS.SDK.Models.Cosmos;
using HTEXLib.COMM.Helpers;
using TEAMModelOS.SDK.Models.Service;
using Microsoft.Extensions.Configuration;
using System.Net.Http;
using TEAMModelOS.SDK;
using static TEAMModelOS.SDK.Models.Teacher;

namespace TEAMModelOS.Services
{
    public static class TeacherService
    {
        public static async Task<TeacherInfo> GetTeacherInfo (AzureCosmosFactory _azureCosmos,Teacher teacher,string name,string picture,string id , AzureStorageFactory _azureStorage, Option _option)
        {
            List<object> schools = new List<object>();
            List<AreaDto> areas = new List<AreaDto>();
            List<Area> areasd = new List<Area>();
            string defaultschool = null;
            //TODO 取得Teacher 個人相關數據(課程清單、虛擬教室清單、歷史紀錄清單等)，學校數據另外API處理，多校切換時不同
            var client = _azureCosmos.GetCosmosClient();
            int total = 0;
            int tsize = 0;
            try
            {
                if (teacher == null)
                {
                    teacher = await client.GetContainer(Constant.TEAMModelOS, "Teacher").ReadItemAsync<Teacher>(id, new PartitionKey("Base"));
                    teacher.name = $"{name}";
                    teacher.picture = $"{picture}";
                }
                else {
                    name = teacher.name;
                    picture = teacher.picture;
                    id = teacher.id;
                }
                ///教师的个人空间
                tsize = teacher.size;
                ///教师的总空间 包含 个人空间和学校赠送的空间累加
                total = teacher.size;
                //areas = teacher.areas;
                if (teacher.areas.IsNotEmpty())
                {
                    foreach (var areat in teacher.areas)
                    {
                        try
                        {
                            Area area = await client.GetContainer(Constant.TEAMModelOS, "Normal").ReadItemAsync<Area>($"{areat.areaId}", new PartitionKey("Base-Area"));
                            areasd.Add(area);
                            AreaSetting  setting= null;
                            try 
                            {
                                setting= await client.GetContainer(Constant.TEAMModelOS, "Normal").ReadItemAsync<AreaSetting>($"{areat.areaId}", new PartitionKey("AreaSetting"));
                            } catch (CosmosException ex) {
                                setting = null;
                            }
                            int access = 0;
                            if (setting != null && !string.IsNullOrWhiteSpace(setting.accessConfig)) {
                                access = 1;
                            }
                            if (setting != null) {
                                setting.accessConfig = null;
                            }
                            areas.Add(new AreaDto { areaId = area.id, name = area.name,standard= area.standard,standardName= area.standardName,setting=setting, access= access });
                        }
                        catch (CosmosException)
                        {
                            //数据库捞不到数据
                            continue;
                        }
                    }
                }
                //检查是否有加入学校，如果加入学校，则当个人空间size是0G的时候，则免费获得一个G空间，但无论加入多少个学校，只能获取一次 1G的免费空间。没有加入学校则默认0G空间,除非自己购买空间
                if (teacher.schools.IsNotEmpty())
                {
                    foreach (var sc in teacher.schools)
                    {
                        string statusNow = sc.status != null ? sc.status : "";
                        if (statusNow.Equals("join") || statusNow.Equals("invite") || statusNow.Equals("request"))
                        {
                            dynamic schoolExtobj = new ExpandoObject();
                            // var schoolJson = await client.GetContainer(Constant.TEAMModelOS, "School").ReadItemStreamAsync($"{sc.schoolId}", new PartitionKey("Base"));
                            //var school = await JsonDocument.ParseAsync(schoolJson.ContentStream);
                            schoolExtobj.schoolId = sc.schoolId;
                            schoolExtobj.name = sc.name;
                            schoolExtobj.status = sc.status;
                            schoolExtobj.time = sc.time;
                            schoolExtobj.picture = sc.picture;
                            schoolExtobj.areaId = $"{sc.areaId}";
                            Area area = null;
                            int access = 0;
                            if (!string.IsNullOrEmpty($"{sc.areaId}"))
                            {
                                
                                try
                                {
                                    
                                    area = await client.GetContainer(Constant.TEAMModelOS, "Normal").ReadItemAsync<Area>($"{sc.areaId}", new PartitionKey("Base-Area"));
                                    AreaSetting setting = null;
                                    try
                                    {
                                        setting = await client.GetContainer(Constant.TEAMModelOS, "Normal").ReadItemAsync<AreaSetting>($"{area.id}", new PartitionKey("AreaSetting"));
                                    }
                                    catch (CosmosException ex)
                                    {
                                        setting = null;
                                    }
                                      
                                    if (setting != null && !string.IsNullOrWhiteSpace(setting.accessConfig))
                                    {
                                        access = 1;
                                    }
                                    areasd.Add(area);
                                     
                                }
                                catch (CosmosException)
                                {
                                    area = null;
                                }
                            }
                            if (area != null)
                            {
                                schoolExtobj.area = new {area.name, area.id, area.institution, area.provName, area.code, area.cityCode, area.cityName, area.standard, area.provCode, area.pk, access };

                            }
                            else {
                                schoolExtobj.area = area;
                            }
                            var sctch = await client.GetContainer(Constant.TEAMModelOS, "School").ReadItemStreamAsync(id, new PartitionKey($"Teacher-{sc.schoolId}"));
                            if (sctch.Status == 200)
                            {
                                var jsonDoc = await JsonDocument.ParseAsync(sctch.ContentStream);
                                SchoolTeacher schoolTeacher = jsonDoc.RootElement.ToObject<SchoolTeacher>();
                                schoolTeacher.name = $"{name}";
                                schoolTeacher.picture = $"{picture}";
                                await client.GetContainer(Constant.TEAMModelOS, "School").ReplaceItemAsync(schoolTeacher, id, new PartitionKey($"Teacher-{sc.schoolId}"));
                                if (jsonDoc.RootElement.TryGetProperty("size", out JsonElement _size) && _size.ValueKind.Equals(JsonValueKind.Number))
                                {
                                    total += _size.GetInt32();
                                    schoolExtobj.size = _size.GetInt32();
                                }
                                else { schoolExtobj.size = 0; }
                            }
                            else
                            {
                                schoolExtobj.size = 0;
                            }
                            if (statusNow.Equals("join"))
                            {
                                //初始化
                                await TmdUserService.JoinSchool(client, teacher.id, teacher.picture, teacher.name, sc.schoolId, sc.name);
                            }
                            schools.Add(schoolExtobj);
                        }
                    }
                    //如果包含任何申请，邀请，加入学校的记录 且个人空间未分配2G  则默认分配个人空间至2G.
                    if (teacher.size < 2 && teacher.schools.Count > 0)
                    {
                        teacher.size = 2;
                    }
                    //如果未包含任何申请，邀请，加入学校的记录 且 个人空间没有分配1G 则默认赠送一个G 
                    if (teacher.schools.Count == 0 && teacher.size < 1)
                    {
                        teacher.size = 1;
                    }
                }
                if (string.IsNullOrEmpty(teacher.defaultSchool) && teacher.schools.IsNotEmpty())
                {
                    var tech = teacher.schools.FindAll(x => x.status.Equals("join"));
                    if (tech.IsNotEmpty())
                    {
                        teacher.defaultSchool = teacher.schools[0].schoolId;
                    }
                }
                await client.GetContainer(Constant.TEAMModelOS, "Teacher").ReplaceItemAsync<Teacher>(teacher, id, new PartitionKey("Base"));
                //預設學校ID
                defaultschool = teacher.defaultSchool;
            }
            catch (CosmosException ex)
            {
                if (ex.Status == 404)
                {
                    //如果沒有，則初始化Teacher基本資料到Cosmos
                      teacher = new Teacher
                    {
                        id = id,
                        pk = "Base",
                        code = "Base",
                        name = name?.ToString(),
                        picture = picture?.ToString(),
                        //创建账号并第一次登录IES5则默认赠送1G
                        size = 1,
                        defaultSchool = null,
                        schools = new List<Teacher.TeacherSchool>(),
                    };
                    var container = _azureStorage.GetBlobContainerClient(id);
                    await container.CreateIfNotExistsAsync(PublicAccessType.None); //嘗試創建Teacher私有容器，如存在則不做任何事，保障容器一定存在
                    teacher = await _azureCosmos.GetCosmosClient().GetContainer(Constant.TEAMModelOS, "Teacher").CreateItemAsync<Teacher>(teacher, new PartitionKey("Base"));
                    total = teacher.size;
                    tsize = teacher.size;
                }
            }
            //私人課程
            List<object> courses = new List<object>();
            await foreach (var item in client.GetContainer(Constant.TEAMModelOS, "Teacher").GetItemQueryStreamIterator(queryText: $"select value(c) from c ", requestOptions: new QueryRequestOptions() { PartitionKey = new PartitionKey($"Course-{id}") }))
            {
                using var json = await JsonDocument.ParseAsync(item.ContentStream);
                if (json.RootElement.TryGetProperty("_count", out JsonElement count) && count.GetUInt16() > 0)
                {
                    foreach (var obj in json.RootElement.GetProperty("Documents").EnumerateArray())
                    {
                        courses.Add(obj.ToObject<object>());
                    }
                }
            }

             
            List<string> roles = new List<string>() { "teacher" };
            Area areaa = null;
            if (areas.Count > 0)
            {
                roles.Add("area");
                if (!string.IsNullOrEmpty($"{areas[0]}"))
                {

                    try
                    {
                        areaa = await client.GetContainer(Constant.TEAMModelOS, "Normal").ReadItemAsync<Area>($"{areas[0].areaId}", new PartitionKey("Base-Area"));
                    }
                    catch (CosmosException)
                    {
                        areaa = null;
                    }
                }
            }
            //換取AuthToken，提供給前端
            var auth_token = JwtAuthExtension.CreateAuthToken(_option.HostName, id, name?.ToString(), picture?.ToString(), _option.JwtSecretKey, Website: "IES", scope: Constant.ScopeTeacher, standard: areaa != null ? areaa.standard : "", roles: roles.ToArray());
            //取得Teacher Blob 容器位置及SAS 
            await _azureStorage.GetBlobContainerClient(id).CreateIfNotExistsAsync(PublicAccessType.None); //嘗試創建Teacher私有容器，如存在則不做任何事，保障容器一定存在
            var (blob_uri, blob_sas) = _azureStorage.GetBlobContainerSAS(id, BlobContainerSasPermissions.Write | BlobContainerSasPermissions.Read | BlobContainerSasPermissions.List | BlobContainerSasPermissions.Delete);
            var (osblob_uri, osblob_sas) = roles.Contains("area") ? _azureStorage.GetBlobContainerSAS("teammodelos", BlobContainerSasPermissions.Write | BlobContainerSasPermissions.Read | BlobContainerSasPermissions.List | BlobContainerSasPermissions.Delete) : _azureStorage.GetBlobContainerSAS("teammodelos", BlobContainerSasPermissions.Read | BlobContainerSasPermissions.List);
            return new TeacherInfo {
                auth_token = auth_token,
                blob_uri = blob_uri,
                blob_sas = blob_sas,
                schools = schools,
                defaultschool = defaultschool,
                courses = courses,
                total=total,
                osblob_sas=osblob_sas,
                osblob_uri = osblob_uri,
                tsize=tsize,
                areas= areas,
                teacher=teacher
            };
        }
    }
    public record AreaDto
    {
        //areaId = area.id, name = area.name, area.standard, area.standardName
        public string areaId { get; set; }
        public string name { get; set; }
        public string standard { get; set; }
        public string standardName { get; set; }
        //public string accessConfig { get; set; }
        public AreaSetting setting { get; set; }
        public int access { get; set; } = 0;
    }
    public record TeacherInfo { 
        public string auth_token { get; set; }
        public string blob_uri { get; set; }
        public string blob_sas { get; set; }
        public List<object> schools { get; set; }= new List<object> ();
        public string defaultschool { get; set; }
        public List<object> courses { get; set; }= new List<object>();
        public int total { get; set; }
        public string osblob_uri { get; set; }
        public string osblob_sas { get; set; }
        public int tsize { get; set; }
        public List<AreaDto> areas { get; set; } = new List<AreaDto>();
        public Teacher teacher { get; set; }
       
    }
}