pub const Contract = struct {
    id: []const u8,
    factionSymbol: []const u8,
    type: Type = .PROCUREMENT,
    terms: Terms = .{},
    accepted: bool = false,
    fullfilled: bool = false,
    deadlineToAccept: []const u8,
};

pub const Type = enum {
    PROCUREMENT,
    TRANSPORT,
    SHUTTLE,
};

pub const Terms = struct {
    deadline: []const u8 = "",
    payment: Payment = .{},
    deliver: []Deliver = &.{},
};

pub const Payment = struct {
    onAccepted: u64 = 0,
    onFulfilled: u64 = 0,
};

pub const Deliver = struct {
    tradeSymbol: []const u8,
    destinationSymbol: []const u8,
    unitsRequired: u64,
    unitsFulfilled: u64,
};