tiny.zen.SiteCatalogPlan

1pub const Plan = struct {2    pages: usize = 0,3    text_bytes: usize = 0,45    pub fn inspect(demand: Demand, limits: Limits) model.Error!Plan {6        var plan: Plan = .{};7        try plan.observe(demand, limits);8        std.debug.assert(plan.pages == 1);9        std.debug.assert(plan.text_bytes == try demand.textBytes());10        return plan;11    }1213    pub fn observe(self: *Plan, demand: Demand, limits: Limits) model.Error!void {14        const next_pages = try added(self.pages, 1);15        if (next_pages > limits.max_pages) return error.SiteCatalogPageCapacityExceeded;16        const next_text = try added(self.text_bytes, try demand.textBytes());17        if (next_text > limits.max_text_bytes) return error.SiteCatalogTextCapacityExceeded;18        self.pages = next_pages;19        self.text_bytes = next_text;20        std.debug.assert(self.pages <= limits.max_pages);21        std.debug.assert(self.text_bytes <= limits.max_text_bytes);22    }2324    pub fn exactLimits(self: Plan) Limits {25        const limits = Limits{ .max_pages = self.pages, .max_text_bytes = self.text_bytes };26        std.debug.assert(limits.max_pages == self.pages);27        std.debug.assert(limits.max_text_bytes == self.text_bytes);28        return limits;29    }30};

1/// Accumulates exact site catalog demand before storage acquisition.2pub const SiteCatalogPlan = site_catalog.Plan;