James Chapman
2c0f6f1cab
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81 lines
2.9 KiB
Plaintext
81 lines
2.9 KiB
Plaintext
@using Groceries.Data
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@using Humanizer
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@using Microsoft.EntityFrameworkCore
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@layout Layout
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@inject IDbContextFactory<AppDbContext> DbContextFactory
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@inject IHttpContextAccessor HttpContextAccessor
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<HeadContent>
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<meta name="turbo-cache-control" content="no-preview" />
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</HeadContent>
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<PageTitle>Groceries</PageTitle>
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<section class="card">
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<header class="card__header">
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<h2>Item Quantity (last 90 days)</h2>
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</header>
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<div class="card__content">
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@if (model != null)
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{
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if (model.IsDivisible)
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{
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var quantity = Convert.ToDouble(model.Quantity);
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var weekQuantity = Math.Round(quantity / 12);
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<strong>@(model.IsMetric ? quantity.ToMetric() : quantity)@model.Unit @model.Tag</strong>
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<small>(@(model.IsMetric ? weekQuantity.ToMetric() : weekQuantity)@model.Unit per week)</small>
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}
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else
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{
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var name = model.Unit != null ? $"{model.Tag} {model.Unit}" : model.Tag;
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var averageQuantity = model.Quantity / 12;
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var averagePeriod = "week";
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if (averageQuantity < 1)
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{
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averageQuantity *= 4;
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averagePeriod = "month";
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}
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<strong>@name.ToQuantity(Convert.ToInt32(model.Quantity))</strong>
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<small>(@name.ToQuantity(Convert.ToInt32(averageQuantity)) per @averagePeriod)</small>
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}
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}
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</div>
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</section>
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@code {
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private ItemTagQuantity? model;
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protected override async Task OnInitializedAsync()
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{
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using var dbContext = DbContextFactory.CreateDbContext();
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model = await dbContext.ItemTagQuantities
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.FromSqlRaw(@"
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SELECT tag, quantity, coalesce(unit_name, unit) AS unit, is_metric, is_divisible
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FROM (
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SELECT
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unnest(tags) AS tag,
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round(sum((item_quantity->'amount')::numeric * quantity), 1) AS quantity,
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item_quantity->>'unit' AS unit,
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(item_quantity->'is_metric')::boolean AS is_metric,
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(item_quantity->'is_divisible')::boolean AS is_divisible
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FROM item_purchases
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JOIN items USING (item_id)
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CROSS JOIN item_quantity(name)
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WHERE array_length(tags, 1) > 0
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AND age(created_at) <= '90 days'
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AND item_quantity IS NOT NULL
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GROUP BY tag, item_quantity->>'unit', item_quantity->'is_metric', item_quantity->'is_divisible'
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ORDER BY random()
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FETCH FIRST ROW ONLY
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) AS random_item_tag_quantity
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LEFT JOIN item_tags USING (tag)
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")
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.FirstOrDefaultAsync(HttpContextAccessor.HttpContext!.RequestAborted);
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}
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}
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