[Verse 1] When building systems that can grow and change There's wisdom in five principles we need to arrange Each class should have one job to do Single Responsibility will see you through Don't mix the database with business rules Keep them separate like different tools [Chorus] S-O-L-I-D, build it right the first time Single job, Open closed, Liskov's way Interface split, Depend on what's high S-O-L-I-D, that's how systems stay alive [Verse 2] Open for extension, closed for modification Add new features without breaking the foundation When requirements shift and customers demand more Don't rewrite the code you wrote before Plugin architecture, strategy pattern too New behavior flows right on through [Chorus] S-O-L-I-D, build it right the first time Single job, Open closed, Liskov's way Interface split, Depend on what's high S-O-L-I-D, that's how systems stay alive [Verse 3] Substitution means your objects play nice Child classes work without thinking twice If it walks like a duck and talks the same Parent's contract must remain No surprises when you swap them out That's what Liskov is about [Bridge] Split those interfaces, keep them small and clean Don't force classes to implement what they've never seen Depend on abstractions, not concrete things High-level modules need stable wings [Verse 4] Interface segregation keeps it lean Many small contracts, focused and clean Dependency inversion flips the game High-level code stays just the same Inject what you need from the outside in That's how flexible systems begin [Chorus] S-O-L-I-D, build it right the first time Single job, Open closed, Liskov's way Interface split, Depend on what's high S-O-L-I-D, that's how systems stay alive [Outro] Five principles to guide your way Building systems that will last each day S-O-L-I-D foundations strong Your architecture can't go wrong
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