local fs = require("@lune/fs")
local serde = require("@lune/serde")

export type SPDXLicense =
    "MIT"
    | "Apache-2.0"
    | "BSD-2-Clause"
    | "BSD-3-Clause"
    | "GPL-2.0"
    | "GPL-3.0"
    | "LGPL-2.1"
    | "LGPL-3.0"
    | "MPL-2.0"
    | "ISC"
    | "Unlicense"
    | "WTFPL"
    | "Zlib"
    | "CC0-1.0"
    | "CC-BY-4.0"
    | "CC-BY-SA-4.0"
    | "BSL-1.0"
    | "EPL-2.0"
    | "AGPL-3.0"

export type DependencySpecifier = ((
    { name: string, version: string, index: string? }
    | { workspace: string, version: string }
    | { repo: string, rev: string, path: string? }
) & {
    target: string?,
}) | { wally: string, version: string, index: string? }

export type PackageTarget = {
    environment: "luau" | "lune" | "roblox" | "roblox_server",
    lib: string,
} | ({ environment: "luau" | "lune" } & ({
    bin: string,
} | {
    scripts: { [string]: string },
}))

export type PesdeManifest<T = {}> = {
    name: string,
    version: string,
    description: string?,
    license: SPDXLicense?,
    authors: { string }?,
    repository: string?,
    private: boolean?,
    includes: { string }?,
    pesde_version: string?,
    workspace_members: { string }?,
    target: PackageTarget,
    build_files: { string }?,
    scripts: { [string]: string }?,
    indices: { [string]: string },
    wally_indices: { [string]: string }?,
    overrides: { [string]: DependencySpecifier }?,
    patches: { [string]: { [string]: string } }?,
    place: { [string]: string }?,
    dependencies: { [string]: DependencySpecifier }?,
    peer_dependencies: { [string]: DependencySpecifier }?,
    dev_dependencies: { [string]: DependencySpecifier }?,
} & T

return function<T>(path: string?, _phantom: T): PesdeManifest<T>
    local manifestContents = fs.readFile(path or "pesde.toml")
    local decoded = serde.decode("toml", manifestContents)

    return decoded :: PesdeManifest<T>
end