// The testing setup has been derived from the actions/setup-go@bc6edb5 action.
// Check README.md for licence information.

import * as path from 'path'

import * as io from '@actions/io'
import * as semver from 'semver'

import nock = require('nock')

const testVersions = [
    '0.1.2',
    '0.2.0', '0.2.1',
    '0.3.0', '0.3.1', '0.3.10', '0.3.11', '0.3.12', '0.3.2', '0.3.3', '0.3.4', '0.3.5', '0.3.6', '0.3.7', '0.3.8', '0.3.9',
    '0.4.0', '0.4.0-rc1', '0.4.0-rc2', '0.4.0-rc3', '0.4.0-rc4', '0.4.1', '0.4.2', '0.4.3', '0.4.4', '0.4.5', '0.4.6', '0.4.7',
    '0.5.0', '0.5.0-rc0', '0.5.0-rc1', '0.5.0-rc2', '0.5.0-rc3', '0.5.0-rc4', '0.5.1', '0.5.2',
    '0.6.0', '0.6.0-pre.alpha', '0.6.0-pre.beta', '0.6.0-rc1', '0.6.0-rc2', '0.6.0-rc3', '0.6.1', '0.6.2', '0.6.3', '0.6.4',
    '0.7.0', '0.7.0-alpha', '0.7.0-beta', '0.7.0-beta2', '0.7.0-rc1', '0.7.0-rc2', '0.7.0-rc3',
    '1.0.0', '1.0.0-rc1', '1.0.1', '1.0.2', '1.0.3', '1.0.4', '1.0.5',
    '1.1.0', '1.1.0-rc1', '1.1.0-rc2', '1.1.1',
    '1.2.0', '1.2.0-rc1', '1.2.0-rc2', '1.2.0-rc3',
    '1.3.0', '1.3.0-alpha', '1.3.0-rc1', '1.3.0-rc2', '1.3.0-rc3', '1.3.0-rc4', '1.3.0-rc5', '1.3.1',
    '1.4.0', '1.4.0-rc1', '1.4.0-rc2', '1.4.1', '1.4.2',
    '1.5.0', '1.5.0-beta1', '1.5.0-rc1', '1.5.0-rc2', '1.5.1', '1.5.2', '1.5.3', '1.5.4',
    '1.6.0', '1.6.0-beta1', '1.6.0-rc1', '1.6.0-rc2', '1.6.0-rc3', '1.6.1', '1.6.2', '1.6.3', '1.6.4', '1.6.5', '1.6.6', '1.6.7',
    '1.7.0', '1.7.0-beta1', '1.7.0-beta2', '1.7.0-beta3', '1.7.0-beta4', '1.7.0-rc1', '1.7.0-rc2', '1.7.0-rc3', '1.7.1', '1.7.2', '1.7.3',
    '1.8.0', '1.8.0-beta1', '1.8.0-beta2', '1.8.0-beta3', '1.8.0-rc1', '1.8.0-rc2', '1.8.0-rc3', '1.8.0-rc4', '1.8.1', '1.8.2', '1.8.3', '1.8.4', '1.8.5',
    '1.9.0', '1.9.0-alpha1', '1.9.0-beta1', '1.9.0-beta2', '1.9.0-beta3', '1.9.0-beta4', '1.9.0-rc1', '1.9.0-rc2', '1.9.0-rc3', '1.9.1', '1.9.2', '1.9.3', '1.9.4',
    '1.10.0', '1.10.0-alpha1', '1.10.0-beta1', '1.10.0-beta2', '1.10.0-beta3', '1.10.0-rc1', '1.10.0-rc2', '1.10.0-rc3', '1.10.1', '1.10.2', '1.10.3', '1.10.4', '1.10.5',
    '1.11.0', '1.11.0-alpha1', '1.11.0-alpha2', '1.11.0-beta1', '1.11.0-beta2', '1.11.0-rc1', '1.11.0-rc2', '1.11.0-rc3', '1.11.0-rc4',
]

const toolDir = path.join(__dirname, 'runner', 'tools')
const tempDir = path.join(__dirname, 'runner', 'temp')
const fixtureDir = path.join(__dirname, 'fixtures')

process.env['RUNNER_TOOL_CACHE'] = toolDir
process.env['RUNNER_TEMP'] = tempDir

import * as installer from '../src/installer'
import exp from 'constants'

describe("getProjectFilePath tests", () => {
    let orgJuliaProject
    let orgWorkingDir

    beforeEach(() => {
        orgJuliaProject = process.env["JULIA_PROJECT"]
        orgWorkingDir = process.cwd()
        delete process.env["JULIA_PROJECT"]
    })

    afterEach(() => {
        process.env["JULIA_PROJECT"] = orgJuliaProject
        process.chdir(orgWorkingDir)
    })

    it("Can determine project file is missing", () => {
        expect(() => installer.getProjectFilePath("DNE.toml")).toThrow("Unable to locate project file")
        expect(() => installer.getProjectFilePath(fixtureDir)).toThrow("Unable to locate project file")
        expect(() => installer.getProjectFilePath()).toThrow("Unable to locate project file")
    })

    it('Can determine project file from a directory', () => {
        expect(installer.getProjectFilePath(path.join(fixtureDir, "PkgA"))).toEqual(path.join(fixtureDir, "PkgA", "Project.toml"))
        expect(installer.getProjectFilePath(path.join(fixtureDir, "PkgB"))).toEqual(path.join(fixtureDir, "PkgB", "JuliaProject.toml"))
    })

    it("Prefers using JuliaProject.toml over Project.toml", () => {
        expect(installer.getProjectFilePath(path.join(fixtureDir, "PkgC"))).toEqual(path.join(fixtureDir, "PkgC", "JuliaProject.toml"))
    })

    it("Can determine project from JULIA_PROJECT", () => {
        process.env["JULIA_PROJECT"] = path.join(fixtureDir, "PkgA")
        expect(installer.getProjectFilePath()).toEqual(path.join(fixtureDir, "PkgA", "Project.toml"))
    })

    it("Can determine project from the current working directory", () => {
        process.chdir(path.join(fixtureDir, "PkgA"));
        expect(installer.getProjectFilePath()).toEqual("Project.toml")
    })

    it("Ignores JULIA_PROJECT when argument is used", () => {
        process.env["JULIA_PROJECT"] = path.join(fixtureDir, "PkgB")
        expect(installer.getProjectFilePath(path.join(fixtureDir, "PkgA"))).toEqual(path.join(fixtureDir, "PkgA", "Project.toml"))
    })
})

describe("validJuliaCompatRange tests", () => {
    it('Handles default caret specifier', () => {
        expect(installer.validJuliaCompatRange("1")).toEqual(semver.validRange("^1"))
        expect(installer.validJuliaCompatRange("1.2")).toEqual(semver.validRange("^1.2"))
        expect(installer.validJuliaCompatRange("1.2.3")).toEqual(semver.validRange("^1.2.3"))

        // TODO: Pkg.jl currently does not support pre-release entries in compat so ideally this would fail
        expect(installer.validJuliaCompatRange("1.2.3-rc1")).toEqual(semver.validRange("^1.2.3-rc1"))
    })

    it('Handle surrounding whitespace', () => {
        expect(installer.validJuliaCompatRange(" 1")).toEqual(semver.validRange("^1"))
        expect(installer.validJuliaCompatRange("1 ")).toEqual(semver.validRange("^1"))
        expect(installer.validJuliaCompatRange(" 1 ")).toEqual(semver.validRange("^1"))
    })

    it('Handles version ranges with specifiers', () => {
        expect(installer.validJuliaCompatRange("^1.2.3")).toEqual(semver.validRange("^1.2.3"))
        expect(installer.validJuliaCompatRange("~1.2.3")).toEqual(semver.validRange("~1.2.3"))
        expect(installer.validJuliaCompatRange("=1.2.3")).toEqual(semver.validRange("=1.2.3"))
        expect(installer.validJuliaCompatRange(">=1.2.3")).toEqual(">=1.2.3")
        expect(installer.validJuliaCompatRange("≥1.2.3")).toEqual(">=1.2.3")
        expect(installer.validJuliaCompatRange("<1.2.3")).toEqual("<1.2.3")
    })

    it('Handles whitespace after specifiers', () => {
        expect(installer.validJuliaCompatRange("^ 1.2.3")).toBeNull()
        expect(installer.validJuliaCompatRange("~ 1.2.3")).toBeNull()
        expect(installer.validJuliaCompatRange("= 1.2.3")).toBeNull()
        expect(installer.validJuliaCompatRange(">= 1.2.3")).toEqual(">=1.2.3")
        expect(installer.validJuliaCompatRange("≥ 1.2.3")).toEqual(">=1.2.3")
        expect(installer.validJuliaCompatRange("< 1.2.3")).toEqual("<1.2.3")
    })

    it('Handles hypen ranges', () => {
        expect(installer.validJuliaCompatRange("1.2.3 - 4.5.6")).toEqual(semver.validRange("1.2.3 - 4.5.6"))
        expect(installer.validJuliaCompatRange("1.2.3-rc1 - 4.5.6")).toEqual(semver.validRange("1.2.3-rc1 - 4.5.6"))
        expect(installer.validJuliaCompatRange("1.2.3-rc1-4.5.6")).toEqual(semver.validRange("^1.2.3-rc1-4.5.6"))  // A version number and not a hypen range
        expect(installer.validJuliaCompatRange("1.2.3-rc1 -4.5.6")).toBeNull()
        expect(installer.validJuliaCompatRange("1.2.3-rc1- 4.5.6")).toBeNull()  // Whitespace separate version ranges
    })

    it("Returns null AND operator on version ranges", () => {
        expect(installer.validJuliaCompatRange("")).toBeNull()
        expect(installer.validJuliaCompatRange("1 2 3")).toBeNull()
        expect(installer.validJuliaCompatRange("1- 2")).toBeNull()
        expect(installer.validJuliaCompatRange("<1 <1")).toBeNull()
        expect(installer.validJuliaCompatRange("< 1 < 1")).toBeNull()
        expect(installer.validJuliaCompatRange("<  1 <  1")).toBeNull()
    })

    it('Returns null with invalid specifiers', () => {
        expect(installer.validJuliaCompatRange("<=1.2.3")).toBeNull()
        expect(installer.validJuliaCompatRange("≤1.2.3")).toBeNull()
        expect(installer.validJuliaCompatRange("*")).toBeNull()
    })

    it("Handles OR operator on version ranges", () => {
        expect(installer.validJuliaCompatRange("1, 2, 3")).toEqual(semver.validRange("^1 || ^2 || ^3"))
        expect(installer.validJuliaCompatRange("1, 2 - 3, ≥ 4")).toEqual(semver.validRange("^1 || >=2 <=3 || >=4"))
        expect(installer.validJuliaCompatRange(",")).toBeNull()
    })
})

describe("readJuliaCompatRange tests", () => {
    it('Can determine Julia compat entries', () => {
        const toml = '[compat]\njulia = "1, ^1.1, ~1.2, >=1.3, 1.4 - 1.5"'
        expect(installer.readJuliaCompatRange(toml)).toEqual(semver.validRange("^1 || ^1.1 || ~1.2 || >=1.3 || 1.4 - 1.5"))
    })

    it('Throws with invalid version ranges', () => {
        expect(() => installer.readJuliaCompatRange('[compat]\njulia = ""')).toThrow("Invalid version range")
        expect(() => installer.readJuliaCompatRange('[compat]\njulia = "1 2 3"')).toThrow("Invalid version range")
    })

    it('Handle missing compat entries', () => {
        expect(installer.readJuliaCompatRange("")).toEqual("*")
        expect(installer.readJuliaCompatRange("[compat]")).toEqual("*")

    })
})

describe('version matching tests', () => {
    describe('specific versions', () => {
        it('Doesn\'t change the version when given a valid semver version', () => {
            expect(installer.getJuliaVersion([], '1.0.5')).toEqual('1.0.5')
            expect(installer.getJuliaVersion(['v1.0.5', 'v1.0.6'], '1.0.5')).toEqual('1.0.5')
            expect(installer.getJuliaVersion(['v1.0.4', 'v1.0.5'], '1.0.5')).toEqual('1.0.5')
            expect(installer.getJuliaVersion(['v1.0.4'], '1.0.5')).toEqual('1.0.5')
            expect(installer.getJuliaVersion([], '1.3.0-alpha')).toEqual('1.3.0-alpha')
            expect(installer.getJuliaVersion(['v1.2.0', 'v1.3.0-alpha', 'v1.3.0-rc1', 'v1.3.0'], '1.3.0-alpha')).toEqual('1.3.0-alpha')
            expect(installer.getJuliaVersion([], '1.3.0-rc2')).toEqual('1.3.0-rc2')
        })

        it('Doesn\'t change the version when given `nightly`', () => {
            expect(installer.getJuliaVersion([], 'nightly')).toEqual('nightly')
            expect(installer.getJuliaVersion(testVersions, 'nightly')).toEqual('nightly')
        })

        it('LTS', () => {
            // Update test when LTS is updated
            expect(installer.getJuliaVersion(testVersions, 'lts')).toEqual(installer.getJuliaVersion(testVersions, '1.10'))
            expect(installer.getJuliaVersion(testVersions, 'lts')).toEqual('1.10.5')
        })

        it('pre', () => {
            expect(installer.getJuliaVersion(testVersions, 'pre')).toEqual('1.11.0')
        })
    })

    describe('version ranges', () => {
        it('Chooses the highest available version that matches the input', () => {
            expect(installer.getJuliaVersion(testVersions, '1')).toEqual('1.11.0')
            expect(installer.getJuliaVersion(testVersions, '1.0')).toEqual('1.0.5')
            expect(installer.getJuliaVersion(testVersions, '^1.3.0-rc1')).toEqual('1.11.0')
            expect(installer.getJuliaVersion(testVersions, '^1.2.0-rc1')).toEqual('1.11.0')
            expect(installer.getJuliaVersion(testVersions, '^1.10.0-rc1')).toEqual('1.11.0')
        })
    })

    describe('include-prereleases', () => {
        it('Chooses the highest available version that matches the input including prereleases', () => {
            expect(installer.getJuliaVersion(testVersions, '^1.2.0-0', true)).toEqual('1.11.0')
            expect(installer.getJuliaVersion(testVersions, '1', true)).toEqual('1.11.0')
            expect(installer.getJuliaVersion(testVersions, '^1.2.0-0', false)).toEqual('1.11.0')
        })
    })

    describe('node-semver behaviour', () => {
        describe('Windows installer change', () => {
            it('Correctly understands >1.4.0', () => {
                expect(semver.gtr('1.4.0-rc1', '1.3', {includePrerelease: true})).toBeTruthy()
                expect(semver.gtr('1.4.0-DEV', '1.3', {includePrerelease: true})).toBeTruthy()
                expect(semver.gtr('1.3.1', '1.3', {includePrerelease: true})).toBeFalsy()
                expect(semver.gtr('1.3.2-rc1', '1.3', {includePrerelease: true})).toBeFalsy()
            })
        })
    })

    describe('julia compat versions', () => {
        it('Understands "min"', () => {
            let versions = ["1.6.7", "1.7.1-rc1", "1.7.1-rc2", "1.7.1", "1.7.2", "1.8.0"]
            expect(installer.getJuliaVersion(versions, "min", false, "^1.7")).toEqual("1.7.1")
            expect(installer.getJuliaVersion(versions, "min", true, "^1.7")).toEqual("1.7.1-rc1")

            versions = ["1.6.7", "1.7.3-rc1", "1.7.3-rc2", "1.8.0"]
            expect(installer.getJuliaVersion(versions, "min", false, "^1.7")).toEqual("1.8.0")
            expect(installer.getJuliaVersion(versions, "min", true, "^1.7")).toEqual("1.7.3-rc1")

            expect(installer.getJuliaVersion(versions, "min", false, "~1.7 || ~1.8 || ~1.9")).toEqual("1.8.0")
            expect(installer.getJuliaVersion(versions, "min", true, "~1.7 || ~1.8 || ~1.9")).toEqual("1.7.3-rc1")
            expect(installer.getJuliaVersion(versions, "min", false, "~1.8 || ~1.7 || ~1.9")).toEqual("1.8.0")
            expect(installer.getJuliaVersion(versions, "min", true, "~1.8 || ~1.7 || ~1.9")).toEqual("1.7.3-rc1")

            expect(installer.getJuliaVersion(versions, "min", false, "1.7 - 1.9")).toEqual("1.8.0")
            expect(installer.getJuliaVersion(versions, "min", true, "1.7 - 1.9")).toEqual("1.7.3-rc1")

            expect(installer.getJuliaVersion(versions, "min", true, "< 1.9.0")).toEqual("1.6.7")
            expect(installer.getJuliaVersion(versions, "min", true, ">= 1.6.0")).toEqual("1.6.7")

            // NPM's semver package treats "1.7" as "~1.7" instead of "^1.7" like Julia
            expect(() => installer.getJuliaVersion(versions, "min", false, "1.7")).toThrow("Could not find a Julia version that matches")

            expect(() => installer.getJuliaVersion(versions, "min", true, "")).toThrow("Julia project file does not specify a compat for Julia")
        })
    })
})

describe('installer tests', () => {
    beforeAll(async () => {
        await io.rmRF(toolDir)
        await io.rmRF(tempDir)
    }, 100000)

    afterAll(async () => {
        try {
            await io.rmRF(toolDir)
            await io.rmRF(tempDir)
        } catch {
            console.log('Failed to remove test directories')
        }
    }, 100000)

    describe('versions.json parsing', () => {
        // Instead of downloading versions.json, use fixtures/versions.json
        beforeEach(() => {
            nock('https://julialang-s3.julialang.org').persist()
                .get('/bin/versions.json')
                .replyWithFile(200, path.join(fixtureDir, 'versions.json'))
        })

        afterEach(() => {
            nock.cleanAll()
            nock.enableNetConnect()
        })

        it('Extracts the list of available versions', async () => {
            expect(await (await installer.getJuliaVersions(await installer.getJuliaVersionInfo())).sort()).toEqual(testVersions.sort())
        })
    })
})