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Lengkapi function generateBackupSchedule(config) yang menghitung jadwal 3 backup pertama sebuah database.
config berbentuk { dbName, frequency, retention, startHour }: frequency berisi "daily" atau "weekly", retention jumlah hari backup disimpan, startHour jam backup (0 sampai 23).
daily = 1 hari, weekly = 7 hari.1 + i * jarak: daily jadi Day 1, Day 2, Day 3; weekly jadi Day 1, Day 8, Day 15.database, time, deleteAfter:
database: config.dbName.time: "Day " + hari + spasi + jam 2 digit + ":00", misalnya "Day 1 02:00". Pakai String(startHour).padStart(2, "0").deleteAfter: "Day " + (hari + retention), misalnya "Day 31".Yang dicek:
generateBackupSchedule({ dbName: "myapp", frequency: "daily", retention: 30, startHour: 2 }) mengembalikan [{ database: "myapp", time: "Day 1 02:00", deleteAfter: "Day 31" }, { database: "myapp", time: "Day 2 02:00", deleteAfter: "Day 32" }, { database: "myapp", time: "Day 3 02:00", deleteAfter: "Day 33" }].generateBackupSchedule({ dbName: "prod", frequency: "weekly", retention: 90, startHour: 0 }) mengembalikan [{ database: "prod", time: "Day 1 00:00", deleteAfter: "Day 91" }, { database: "prod", time: "Day 8 00:00", deleteAfter: "Day 98" }, { database: "prod", time: "Day 15 00:00", deleteAfter: "Day 105" }].Baris console.log(...) di kode awal sudah ada, biarkan saja.
