import { FeedItem } from "@/components/ExpandableItem";
import { Category } from "@/components/CollapsibleCategory";



// random generated data to check the UI before I connect to the server and fetch data

// ── 1st Year Subjects ───────────────────────────────────────────────────────

const YEAR_1_SUBJECTS = [
    {
        id: "y1-maths",
        title: "Mathematics I",
        author: "Prof. John Doe",
        timestamp: "2 hours ago",
        tag: "Mathematics",
        paragraphs: [
            "Introduction to Calculus, Linear Algebra, and Differential Equations.",
            "Topics include Limits, Continuity, and Integration techniques."
        ]
    },
    {
        id: "y1-physics",
        title: "Physics I",
        author: "Prof. Jane Smith",
        timestamp: "5 hours ago",
        tag: "Physics",
        paragraphs: [
            "Fundamentals of Mechanics, Thermodynamics, and Waves.",
            "Topics include Newton’s Laws, Energy, and Thermodynamics."
        ]
    },
];

// ── 2nd Year Subjects ───────────────────────────────────────────────────────

const YEAR_2_SUBJECTS = [
    {
        id: "y2-maths",
        title: "Mathematics II",
        author: "Prof. Alan Walker",
        timestamp: "1 day ago",
        tag: "Mathematics",
        paragraphs: [
            "Advanced Calculus, Linear Algebra, and Complex Analysis.",
            "Topics include Eigenvalues, Eigenvectors, and Fourier Series."
        ]
    },
    {
        id: "y2-electronics",
        title: "Basic Electronics",
        author: "Prof. Emma Stone",
        timestamp: "Yesterday",
        tag: "Electronics",
        paragraphs: [
            "Introduction to basic electrical circuits, components, and semiconductor devices.",
            "Topics include Resistors, Capacitors, Diodes, and Transistors."
        ]
    },
];

// ── 3rd Year Subjects ───────────────────────────────────────────────────────

const YEAR_3_SUBJECTS = [
    {
        id: "y3-maths",
        title: "Mathematics III",
        author: "Prof. Robert Brown",
        timestamp: "3 days ago",
        tag: "Mathematics",
        paragraphs: [
            "Partial Differential Equations, Laplace Transforms, and Numerical Methods.",
            "Topics include PDEs, Laplace Transforms, and Optimization Techniques."
        ]
    },
    {
        id: "y3-physics",
        title: "Physics III",
        author: "Prof. Alice White",
        timestamp: "Yesterday",
        tag: "Physics",
        paragraphs: [
            "Quantum Mechanics, Relativity, and Solid-State Physics.",
            "Topics include Schrödinger’s Equation, Quantum States, and Relativity."
        ]
    },
];

// ── 4th Year Subjects ───────────────────────────────────────────────────────

const YEAR_4_SUBJECTS = [
    {
        id: "y4-electronics",
        title: "Electronics Engineering Design",
        author: "Prof. Kate Johnson",
        timestamp: "1 week ago",
        tag: "Electronics",
        paragraphs: [
            "Project-based learning and design of electronic systems.",
            "Topics include Embedded Systems, PCB Design, and Signal Processing."
        ]
    },
    {
        id: "y4-physics",
        title: "Physics IV",
        author: "Prof. Michael Harris",
        timestamp: "5 days ago",
        tag: "Physics",
        paragraphs: [
            "Advanced topics in Particle Physics, Astrophysics, and Nuclear Physics.",
            "Topics include Quantum Field Theory, Astrophysics, and Particle Accelerators."
        ]
    },
];

// ── Subscribed Feed ──────────────────────────────────────────────────────────

export const SUBSCRIBED_ITEMS: FeedItem[] = [
    {
        id: "s1",
        title: "Mathematics I",
        author: "Prof. John Doe",
        timestamp: "2 hours ago",
        tag: "Mathematics",
        paragraphs: YEAR_1_SUBJECTS[0].paragraphs,
    },
    {
        id: "s2",
        title: "Physics I",
        author: "Prof. Jane Smith",
        timestamp: "5 hours ago",
        tag: "Physics",
        paragraphs: YEAR_1_SUBJECTS[1].paragraphs,
    },
    {
        id: "s3",
        title: "Mathematics II",
        author: "Prof. Alan Walker",
        timestamp: "1 day ago",
        tag: "Mathematics",
        paragraphs: YEAR_2_SUBJECTS[0].paragraphs,
    },
    {
        id: "s4",
        title: "Basic Electronics",
        author: "Prof. Emma Stone",
        timestamp: "Yesterday",
        tag: "Electronics",
        paragraphs: YEAR_2_SUBJECTS[1].paragraphs,
    },
    {
        id: "s5",
        title: "Mathematics III",
        author: "Prof. Robert Brown",
        timestamp: "3 days ago",
        tag: "Mathematics",
        paragraphs: YEAR_3_SUBJECTS[0].paragraphs,
    },
];

// ── All Feed: Years & Subjects ──────────────────────────────────────────────

export const ALL_CATEGORIES: Category[] = [
    {
        id: "cat-year-1",
        label: "1st Year",
        icon: "book-outline",
        color: "#3B7DD8",
        darkColor: "#5E9EF4",
        items: YEAR_1_SUBJECTS,
    },
    {
        id: "cat-year-2",
        label: "2nd Year",
        icon: "book-outline",
        color: "#2E9E6B",
        darkColor: "#4EC992",
        items: YEAR_2_SUBJECTS,
    },
    {
        id: "cat-year-3",
        label: "3rd Year",
        icon: "book-outline",
        color: "#9B4FB8",
        darkColor: "#C47CE0",
        items: YEAR_3_SUBJECTS,
    },
    {
        id: "cat-year-4",
        label: "4th Year",
        icon: "book-outline",
        color: "#C4622D",
        darkColor: "#E07B45",
        items: YEAR_4_SUBJECTS,
    },
];