#!/usr/bin/env just
# * Light project scripts, without file dependendencies, using https://github.com/casey/just.
# https://docs.rs/regex/1.5.4/regex/#syntax Regexps
# https://just.systems/man/en/chapter_31.html Functions
# See also Makefile, Shake.hs

@help:
    just -lu

@_check:
    just --fmt --unstable --check

@_fmt:
    just -q _check || just --fmt --unstable

# ** dev

# push to github CI branch, wait for CI tests to pass, then push to master
@push *INTERVALSECS:
    tools/push {{ INTERVALSECS }}

# ** releasing

# Symlink/copy important files temporarily in .relfiles/.
relfiles:
    #!/usr/bin/env bash
    echo "linking/copying important release files in .relfiles/ for convenient access..."
    mkdir -p .relfiles
    cd .relfiles
    for f in \
        ../stack.yaml \
        ../Shake.hs \
        ../hledger-install/hledger-install.sh \
        ../CHANGES.md \
        ../hledger/CHANGES.md \
        ../hledger-ui/CHANGES.md \
        ../hledger-web/CHANGES.md \
        ../hledger-lib/CHANGES.md \
        ../doc/github-release.md \
        ../doc/ANNOUNCE \
        ../doc/ANNOUNCE.masto \
        ../site/src/release-notes.md \
        ../site/src/install.md \
    ; do ln -sf $f .; done
    cp ../doc/RELEASING.md ./RELEASING2.md   # temp copy which can be edited without disruption

# Prepare to release today, creating/switching to release branch, updating versions, manuals, changelogs etc.
relprep VER:
    #!/usr/bin/env bash
    [[ -z {{ VER }} ]] && usage
    BRANCH=$(just _versionReleaseBranch {{ VER }})
    COMMIT="-c"
    echo "Switching to $BRANCH, auto-creating it if needed..."
    _gitSwitchAutoCreate "$BRANCH"
    echo "Bumping all version strings to {{ VER }} ..."
    ./Shake setversion {{ VER }} $COMMIT
    echo "Updating all command help texts for embedding..."
    ./Shake cmdhelp $COMMIT
    echo "Updating all dates in man pages..."
    ./Shake mandates
    echo "Generating all the manuals in all formats...."
    ./Shake manuals $COMMIT
    echo "Updating CHANGES.md files with latest commits..."
    ./Shake changelogs $COMMIT

# Push the current branch to github to generate release binaries.
@relbin:
    # assumes the github remote is named "github"
    git push -f github HEAD:binaries

# *** hledger version numbers
# See doc/RELEASING.md > Glossary.

# First 0-2 parts of a dotted version number.
@_versionMajorPart VER:
    echo {{ replace_regex(VER, '(\d+(\.\d+)?).*', '$1') }}

# Third part of a dotted version number, if any.
@_versionMinorPart VER:
    echo {{ if VER =~ '\d+(\.\d+){2,}' { replace_regex(VER, '\d+\.\d+\.(\d+).*', '$1') } else { '' } }}

# Fourth part of a dotted version number, if any.
@_versionFourthPart VER:
    echo {{ if VER =~ '\d+(\.\d+){3,}' { replace_regex(VER, '\d+(\.\d+){2}\.(\d+).*', '$2') } else { '' } }}

# Does this dotted version number have a .99 third part and no fourth part ?
@_versionIsDev VER:
    echo {{ if VER =~ '(\d+\.){2}99$' { 'y' } else { '' } }}

# Does this dotted version number have a .99 third part and a fourth part ?
@_versionIsPreview VER:
    echo {{ if VER =~ '(\d+\.){2}99\.\d+' { 'y' } else { '' } }}

# Increment a major version number to the next.
# @majorVersionIncrement MAJORVER:
#     python3 -c "print({{MAJORVER}} + 0.01)"

# Appropriate release branch name for the given version number.
_versionReleaseBranch VER:
    #!/usr/bin/env bash
    MAJOR=$(just _versionMajorPart {{ VER }})
    if [[ $(just _versionIsDev {{ VER }}) == y ]] then
      echo "{{ VER }} is not a releasable version" >&2
      exit 1
    elif [[ $(just _versionIsPreview {{ VER }}) == y ]] then
      # echo "$(just majorVersionIncrement "$MAJOR")-branch"
      echo "{{ VER }} is not a releasable version" >&2
      exit 1
    else
      echo "$MAJOR-branch"
    fi

# *** git

# Does the named branch exist in this git repo ?
@_gitBranchExists BRANCH:
    git branch -l {{ BRANCH }} | grep -q {{ BRANCH }}

# Switch to the named git branch, creating it if it doesn't exist.
_gitSwitchAutoCreate BRANCH:
    #!/usr/bin/env bash
    if just _gitBranchExists {{ BRANCH }}; then
      git switch {{ BRANCH }}
    else
      git switch -c {{ BRANCH }}
    fi

# ** misc

# Show last week's activity, for TWIH
@lastweek:
    echo "hledger time last 7 days including today (this should be run on a Friday):"
    tt bal hledger -DTS -b '6 days ago' --drop 2
    echo
    echo "By activity type, percentage:"
    tt bal hledger -DTS -b '6 days ago' --pivot t -% -c 1% | tail +1
    echo
    echo "Time log details:"
    tt print hledger -b '6 days ago' | grep -E '^[^ ]|hledger'
    echo
    echo "main repo:"
    git log --format='%C(yellow)%cd %ad %Cred%h%Creset %s %Cgreen(%an)%Creset%C(bold blue)%d%Creset' --date=short --since="6 days ago" --reverse
    echo
    echo "site repo:"
    git -C site log --format='%C(yellow)%cd %ad %Cred%h%Creset %s %Cgreen(%an)%Creset%C(bold blue)%d%Creset' --date=short --since="6 days ago" --reverse
    echo
    echo "finance repo:"
    git -C finance log --format='%C(yellow)%cd %ad %Cred%h%Creset %s %Cgreen(%an)%Creset%C(bold blue)%d%Creset' --date=short --since="6 days ago" --reverse
    echo

# Show a bunch of debug messages.
@_dbgmsgs:
    rg --sort path -t hs 'dbg.*?(".*")' -r '$1' -o

# # Extract Hledger.hs examples to jargon.j.
# @_jargon:
#   rg '^ *> (.*)' -or '$1' hledger-lib/Hledger.hs > jargon.j
#   echo "wrote jargon.j"

# Extract ledger/hledger/beancount commit stats to project-commits.j.
@_projectcommits:
    # https://hledger.org/reporting-version-control-stats.html
    printf "account ledger\naccount hledger\naccount beancount\n\n" >project-commits.j
    for p in ledger hledger beancount; do git -C ../$p log --format="%cd (%h) %s%n  ($p)  1%n" --date=short --reverse >> project-commits.j; done
    echo "wrote project-commits.j"