92 lines
2.5 KiB
Text
92 lines
2.5 KiB
Text
@using Iceshrimp.Frontend.Core.Miscellaneous
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@using Iceshrimp.Frontend.Core.Services
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@using Iceshrimp.Frontend.Core.Services.StateServicePatterns
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@using Iceshrimp.Shared.Schemas
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@using Ljbc1994.Blazor.IntersectionObserver
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@using Ljbc1994.Blazor.IntersectionObserver.API
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@using Ljbc1994.Blazor.IntersectionObserver.Components
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@inject ApiService ApiService
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@inject StateService StateService
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@if (_init)
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{
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<VirtualScroller NoteResponseList="State.Timeline" ReachedEnd="FetchOlder" ReachedStart="FetchNewer" />
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}
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else
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{
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<div>Loading</div>
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}
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@code {
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private TimelineState State { get; set; } = new()
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{
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Timeline = [],
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MaxId = null,
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MinId = null
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};
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private bool _init = false;
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private bool LockFetch { get; set; }
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private async Task Initialize()
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{
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var pq = new PaginationQuery() { Limit = 30 };
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var res = await ApiService.Timelines.GetHomeTimeline(pq);
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State.MaxId = res[0].Id;
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State.MinId = res.Last().Id;
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State.Timeline = res;
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}
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private async Task FetchOlder()
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{
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if (LockFetch) return;
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LockFetch = true;
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var pq = new PaginationQuery() { Limit = 15, MaxId = State.MinId };
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var res = await ApiService.Timelines.GetHomeTimeline(pq);
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if (res.Count > 0)
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{
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State.MinId = res.Last().Id;
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State.Timeline.AddRange(res);
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}
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LockFetch = false;
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}
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private async Task FetchNewer()
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{
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if (LockFetch) return;
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LockFetch = true;
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var pq = new PaginationQuery() { Limit = 15, MinId = State.MaxId };
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var res = await ApiService.Timelines.GetHomeTimeline(pq);
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if (res.Count > 0)
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{
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State.MinId = res.Last().Id;
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State.Timeline.InsertRange(0, res);
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}
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LockFetch = false;
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}
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protected override async Task OnAfterRenderAsync(bool firstRender)
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{
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if (firstRender)
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{
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try
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{
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var timeline = StateService.Timeline.GetState("home");
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State = timeline;
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_init = true;
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StateHasChanged();
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}
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catch (ArgumentException)
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{
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await Initialize();
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_init = true;
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StateHasChanged();
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}
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}
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StateService.Timeline.SetState("home", State);
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}
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}
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