.scalafmt.conf

version = "3.7.17"
runner.dialect = scala213
maxColumn = 300

// https://scalameta.org/scalafmt/docs/configuration.html#projectgit
project.git = true

fileOverride {
  "glob:**/project/**.scala" {
    runner.dialect = scala212
  }
  "glob:**/*.sbt" {
    runner.dialect = sbt1
  }
}

// ---------------------
// alignment
// ---------------------
align.preset = most
// align code behind -> e.g. in for ... yield
align.arrowEnumeratorGenerator = true
// multiline strings
align.stripMargin = true
assumeStandardLibraryStripMargin = true
// align also multiline statements
align.multiline = true
// don't break lines just because of alignment
align.allowOverflow = true
// align '='
align.tokens."+" = [
  {
    code = "="
    owners = [{
      parents = ["Template"]
    }]
  }
  {
    code = "="
    owners = [{
      regex = "Enumerator\\."
      parents = ["Term\\.ForYield"]
    }]
  }
]
// align vals and types equally
align.treeCategory."Defn.Val" = "given/val/var/def"
align.treeCategory."Defn.Type" = "given/val/var/def"

// ---------------------
// indentation
// ---------------------
// identation of function calls
indent.callSite = 2
// indentation of "if" and "while"
indent.ctrlSite = 2
// identation of definition of parameters in cls and fce
indent.defnSite = 2
// indentation of "extends" and "with"
indent.extendSite = 2
// indent nested match and infix expressions
// this causes issues with // comments, indents them
// indent.relativeToLhsLastLine = [match, infix]
// indentation of multiline nested parentheses
binPack.indentCallSiteOnce = false
binPack.indentCallSiteSingleArg = false


// ---------------------
// indent operator
// ---------------------
// apply indentation exempts only in some cases
//indentOperator.preset = "spray"
// exempt indentation of 2nd and additional lines in special cases
indentOperator.exemptScope = all


// ---------------------
// new lines
// ---------------------
// remove line breaks, leads to horizontal code
//newlines.source = fold
// newlines around statements
newlines.topLevelStatementBlankLines = [
  {
    blanks = 1
  }
  {
    minBreaks = 1
    blanks = 1
  }
]
// newlines after package, class, trait header if body is not trivial
newlines.topLevelBodyIfMinStatements = []
newlines.topLevelBodyMinStatements = 2
newlines.beforeTemplateBodyIfBreakInParentCtors = true
// force newline in case/if/while when the body is multiline
newlines.beforeMultiline = keep
newlines.alwaysBeforeElseAfterCurlyIf = false
// break when assignment is multiline
// newlines.forceBeforeMultilineAssign = any
// formatting of bounds of type parameters: upper <:, lower >:, view <%, and context : bounds
newlines.beforeTypeBounds = unfold
// newlines in { case ... => f() } lambdas
// newlines.beforeCurlyLambdaParams = never
// newlines.afterCurlyLambdaParams = squash
// spaces after implicit in fce parameter list
//newlines.implicitParamListModifierForce = [after]
//newlines.avoidForSimpleOverflow = [punct, tooLong, slc]
// skip newlines in the result type
newlines.avoidInResultType = true
// don't put newline before : of the result type if line overflows
newlines.sometimesBeforeColonInMethodReturnType = false
// chains of calls
newlines.selectChains = keep
// in interpolation
newlines.inInterpolation = avoid
// dangling parenteses
danglingParentheses.preset = true
danglingParentheses.exclude = []

// config style arguments
//optIn.configStyleArguments = true
//runner.optimizer.forceConfigStyleOnOffset = 80
//runner.optimizer.forceConfigStyleMinArgCount = 1


// rewrite rules
// - drop redundant braces like { } around a block
// - drop redundant parentheses like ( ) around a statement
// - sort implicit final private lazy
// - prefer for { } yield () over for (;) yield ()
// - organize imports
rewrite.rules = [RedundantBraces, RedundantParens, SortModifiers, PreferCurlyFors, Imports]
rewrite.redundantBraces.stringInterpolation = true
rewrite.imports.sort = scalastyle
rewrite.trailingCommas.style = always
// rewrite tokens to different characters
rewriteTokens = {
  "⇒": "=>"
  "→": "->"
  "←": "<-"
}

// vertical align a line breaks
verticalMultiline.atDefnSite = true
verticalMultiline.arityThreshold = 100
verticalMultiline.newlineAfterOpenParen = true

// wrap long standalone comments
comments.wrap = standalone
comments.wrapStandaloneSlcAsSlc = true

// javadoc formatting
docstrings.style = SpaceAsterisk
docstrings.blankFirstLine = yes
docstrings.removeEmpty = true
docstrings.oneline = fold
docstrings.wrapMaxColumn = 80

// all calls in chains start on a new line
includeNoParensInSelectChains = true
// keep chains on multiple lines if already multiline
optIn.breakChainOnFirstMethodDot = true

// scala 3 config
rewrite.scala3.convertToNewSyntax = true
//rewrite.trailingCommas.style = "multiple"