import Testing
@testable import gitbay

@MainActor
struct ReadmeBadgeSourceTests {

    private func rewrite(_ content: String, host: String = "gitbay.org") -> String {
        ReadmeView.preferringPNGBadges(content, host: host)
    }

    @Test func aBadgeOnThisInstancePointsAtThePNG() {
        #expect(rewrite("[[https://gitbay.org/krz/gitbay/builds][file:https://gitbay.org/krz/gitbay/badge/build.svg]]")
            == "[[https://gitbay.org/krz/gitbay/builds][file:https://gitbay.org/krz/gitbay/badge/build.png]]")
    }

    @Test func aBadgeForAnotherRepoOnTheSameInstanceIsRewritten() {
        #expect(rewrite("file:https://gitbay.org/krz/orgo/badge/build.svg")
            == "file:https://gitbay.org/krz/orgo/badge/build.png")
    }

    /// Somewhere else's badge has no PNG to offer, so it is left as authored.
    @Test func aBadgeOnAnotherHostIsLeftAlone() {
        let shields = "file:https://img.shields.io/badge/build-passing.svg"
        #expect(rewrite(shields) == shields)
    }

    /// Only the badge path is rewritten; an SVG committed to the repo is not a badge.
    @Test func anSVGThatIsNotABadgeIsLeftAlone() {
        let diagram = "file:https://gitbay.org/krz/gitbay/raw/HEAD/docs/diagram.svg"
        #expect(rewrite(diagram) == diagram)
    }

    @Test func anEmptyHostRewritesNothing() {
        let badge = "file:https://gitbay.org/krz/gitbay/badge/build.svg"
        #expect(rewrite(badge, host: "") == badge)
    }

    /// The host is matched literally: its dots are not wildcards.
    @Test func theHostIsNotTreatedAsAPattern() {
        let impostor = "file:https://gitbayxorg/krz/gitbay/badge/build.svg"
        #expect(rewrite(impostor) == impostor)
    }
}