fix: increased test coverage and improved filter query perf

[Akalanka47000]

Summary by Sourcery

Optimize filter query parsing, extend filter syntax support, refactor core query and soft-delete APIs, remove obsolete utilities, and significantly expand test coverage across plugins, sentinel, transactions, scheduling, deletion, and read operations.

New Features:

• Support map-based and variadic field projections in Model.Select
• Introduce experimental UseCluster method on Model
• Extend filter query syntax with boolean, ObjectID, time, regex modifiers, and logical operators (and/or)

Bug Fixes:

• Fix filter query parsing for values containing '='
• Ensure correct casting of numeric, ObjectId, and time values in filter queries

Enhancements:

• Simplify and optimize parseOperatorValue logic in filterquery util
• Refactor Model.EnableSoftDelete and DisableSoftDelete to use pointer receivers
• Remove deprecated utility functions (SetDefaults, setField, CastSlice)

Tests:

• Expand plugin filter query tests for new operators and types
• Add sentinel validation tests for equals rule
• Add basic and client transaction tests
• Add scheduling tests for unscheduling all queries
• Add core delete tests for soft delete behavior
• Add core read tests for GreaterThan, LessThan, Has, FindByID pointer, and variadic Select arguments

[sourcery-ai]

Reviewer's Guide

This PR refactors core query and projection logic for greater flexibility, optimizes filter query parsing for accurate type casting, cleans up legacy utility functions, and significantly expands test coverage across filtering, validation, transactions, scheduling, soft deletes, and read operations.

Sequence Diagram for Updated filterquery.parseOperatorValue Type Casting

sequenceDiagram
    participant Caller
    participant FQUtil as filterquery.util
    participant CastLib as cast
    participant MongoLib as primitive

    Caller->>FQUtil: parseOperatorValue(value, operator)
    FQUtil->>FQUtil: strVal = cast.ToString(value)
    FQUtil->>FQUtil: strVal = replaceOperator(strVal, operator)

    FQUtil->>CastLib: ToFloat64E(strVal)
    alt CastLib returns float64_val (no error)
        FQUtil-->>Caller: float64_val
    else CastLib returns error
        FQUtil->>MongoLib: ObjectIDFromHex(strVal)
        alt MongoLib returns objectId_val (no error)
            FQUtil-->>Caller: objectId_val
        else MongoLib returns error
            FQUtil->>CastLib: ToTimeE(strVal)
            alt CastLib returns time_val (no error)
                FQUtil-->>Caller: time_val
            else CastLib returns error
                FQUtil-->>Caller: strVal (as string)
            end
        end
    end

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Updated Class Diagram for Model[T]

classDiagram
    class Model~T~ {
        +Select(fields ...any) Model~T~
        +EnableSoftDelete() void
        +DisableSoftDelete() void
        +softDeletePayload() primitive.M
        +UseCluster(connection *string) ClusterOp~T~
    }

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Class Diagram: Removed Functions from utils Package

classDiagram
  class `utils.struct` {
    <<Module>>
    -setField(field reflect.Value, val string) error
    -SetDefaults(ptr any) error
  }
  class `utils.slice` {
    <<Module>>
    -CastSlice~T any~(slice []any) []T
  }

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File-Level Changes

Change	Details	Files
Improved filter query parsing and type handling	Simplified parseOperatorValue to attempt float, ObjectID, then time conversions before defaulting to string Fixed multi-‘=’ splitting in filterquery.Parse by joining value segments	plugins/filterquery/util.go plugins/filterquery/filterquery.go
Refactor Model.Select to handle map, slice, and variadic inputs	Detect map argument and project fields directly Use reflect.Type and cast.ToStringSlice for slice and variadic string support Removed old slice/map branching and utils.CastSlice dependency	core/model.go
Adjust soft-delete methods to use pointer receivers	Change EnableSoftDelete and DisableSoftDelete to pointer receivers Drop return values and streamline deletedAtFieldName assignment	core/model_query_delete.go
Clean up legacy utility functions	Remove SetDefaults and its helper setField from struct utils Delete generic CastSlice in utils/slice.go	utils/struct.go utils/slice.go
Reintroduce experimental UseCluster method	Add Model.UseCluster with pointer receiver in core/cluster.go	core/cluster.go
Expand test coverage across modules	Add boolean, ObjectID, time, regex, and complex operator cases in filter query tests Introduce document-equals sentinel validation tests Add basic and client transaction tests Add unschedule, soft-delete, 'has' read-op, pointer-ID find, and variadic Select tests	tests/plugin_filter_query_test.go tests/plugin_sentinel_test.go tests/transaction_test.go tests/core_schedule_test.go tests/core_delete_test.go tests/core_read_ops_test.go tests/core_read_test.go tests/core_read_select_test.go

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

📢 Thoughts on this report? Let us know!

[sourcery-ai]

Hey @Akalanka47000 - I've reviewed your changes - here's some feedback:

• The new parseOperatorValue drops boolean handling, so you should explicitly parse "true"/"false" into booleans instead of leaving them as strings.
• Your Select method assumes at least one argument, so add a guard for len(fields) == 0 to avoid a panic when no projection fields are passed.
• EnableSoftDelete and DisableSoftDelete now use pointer receivers but other mutating methods use value receivers—consider standardizing on pointer receivers for all stateful model methods to avoid unexpected behavior.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Testing: all looks good
• 🟢 Documentation: all looks good

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