Results04.razor

@page "/Results04/{SearchTerm}"
@inject NavigationManager NavigationManager
@using MongoDB.Bson;
@using MongoDB.Driver;
@using AtlasSearchNYC.Datamodels;
@using System;

<PageTitle>Content</PageTitle>

<div class="row">
    <h1>Search Results</h1>
</div>

<div class="row">
    <div class="col-auto">
        <h2><label for="ddl" class="form-label">Sort By</label></h2>
    </div>

    <div class="col-auto">
        <div class="input-group">
            <select class="form-select form-select-lg sortbox" id="ddl" @onchange=ChangeSort>
                <option>Release Year</option>
                <option>Score</option>
            </select>
        </div>
    </div>
</div>

<div class="row">
    <SearchBarBasic SearchTerm="@SearchTerm" Redirect="Results04"  OnSearchCallback="@ChangeSearchTerm" />
</div>

<div class="row" style="margin-top:20px;">
    @if(movies != null) {
        @foreach (var t in movies)
        {
            <MovieTile SourceMovie=@t ShowSearchScore=true ShowMLT=true ChangeSearchCallback="@ChangeSearchTerm" />
        }
    }
</div>


@code {
    [Parameter]
    public string SearchTerm {get; set;}
    private List<Datamodels.Movie> movies = new List<Movie>();
    private string SortBy = "Release Year";

    protected async void ChangeSort(ChangeEventArgs e) {
        SortBy = e.Value.ToString();
        await RunSearch();
    }

    protected override async Task OnInitializedAsync()
    { 
        await RunSearch();

    }

    private async void ChangeSearchTerm(string term) {
        Console.WriteLine("R04 - ChangeSearchTerm " + term);
        SearchTerm = term;
        NavigationManager.NavigateTo("/Results04/" + SearchTerm);
        await RunSearch();
    }

    private async Task RunSearch() {
        var pipeline = new BsonDocument[] {
            new BsonDocument("$search", 
                new BsonDocument
                    {
                        { "index", "sort" }, 
                        { "text", 
                new BsonDocument
                        {
                            { "query", SearchTerm }, 
                            { "path", 
                new BsonArray
                            {
                                "title",
                                "fullplot"
                            } }
                        } }, 
                        { "sortBetaV1", 
                new BsonDocument("year", -1) }, 
                        { "highlight", 
                new BsonDocument("path", 
                new BsonArray
                            {
                                "fullplot",
                                "title"
                            }) }
                    }),
                new BsonDocument("$project", 
                new BsonDocument
                    {
                        { "title", 1 }, 
                        { "fullplot", 1 }, 
                        { "year", 1 }, 
                        { "genres", 1 }, 
                        { "poster", 1 }, 
                        { "score", 
                new BsonDocument("$meta", "searchScore") }, 
                        { "highlights", 
                new BsonDocument("$meta", "searchHighlights") }
                    }),
            new BsonDocument("$limit", 25)
        };
        
        @if(SortBy == "Score") {
             pipeline = new BsonDocument[] {
                new BsonDocument("$search", 
                    new BsonDocument
                        {
                            { "index", "sort" }, 
                            { "text", 
                    new BsonDocument
                            {
                                { "query", SearchTerm }, 
                                { "path", 
                    new BsonArray
                                {
                                    "title",
                                    "fullplot"
                                } }
                            } }, 
                            { "highlight", 
                    new BsonDocument("path", 
                    new BsonArray
                                {
                                    "fullplot",
                                    "title"
                                }) }
                        }),
                    new BsonDocument("$project", 
                    new BsonDocument
                        {
                            { "title", 1 }, 
                            { "fullplot", 1 }, 
                            { "year", 1 }, 
                            { "genres", 1 }, 
                            { "poster", 1 }, 
                            { "score", 
                    new BsonDocument("$meta", "searchScore") }, 
                            { "highlights", 
                    new BsonDocument("$meta", "searchHighlights") }
                        }),
            new BsonDocument("$limit", 25)
            };
        }

        string MDBCONNSTR = Environment.GetEnvironmentVariable("MDBCONNSTR");
        var settings = MongoClientSettings.FromConnectionString(MDBCONNSTR);
        settings.ServerApi = new ServerApi(ServerApiVersion.V1);
        var client = new MongoClient(settings);
        var database = client.GetDatabase("sample_mflix");
        var col = database.GetCollection<Datamodels.Movie>("movies"); 

        var result = await col.Aggregate<Datamodels.Movie>(pipeline).ToListAsync();
        movies = result;

    }
}