ಮಾಡ್ಯೂಲ್:ConvertDigit

Source : bn:Module:ConvertDigit

---

-- Module:ConvertDigit
local p = {}

-- Kannada to English digit conversion
local kn_to_en = {
    ['೦'] = '0', ['೧'] = '1', ['೨'] = '2', ['೩'] = '3',
    ['೪'] = '4', ['೫'] = '5', ['೬'] = '6', ['೭'] = '7',
    ['೮'] = '8', ['೯'] = '9'
}

-- English to Kannada digit conversion
local en_to_kn = {
    ['0'] = '೦', ['1'] = '೧', ['2'] = '೨', ['3'] = '೩',
    ['4'] = '೪', ['5'] = '೫', ['6'] = '೬', ['7'] = '೭',
    ['8'] = '೮', ['9'] = '೯'
}

-- Month names
local month_numbers = {
    ['1'] = 'ಜನವರಿ', ['2'] = 'ಫೆಬ್ರವರಿ', ['3'] = 'ಮಾರ್ಚ್',
    ['4'] = 'ಏಪ್ರಿಲ್', ['5'] = 'ಮೇ', ['6'] = 'ಜೂನ್',
    ['7'] = 'ಜುಲೈ', ['8'] = 'ಆಗಸ್ಟ್', ['9'] = 'ಸೆಪ್ಟೆಂಬರ್',
    ['10'] = 'ಅಕ್ಟೋಬರ್', ['11'] = 'ನವೆಂಬರ್', ['12'] = 'ಡಿಸೆಂಬರ್'
}

local en_months = {
    ['January'] = 'ಜನವರಿ', ['january'] = 'ಜನವರಿ',
    ['February'] = 'ಫೆಬ್ರವರಿ', ['february'] = 'ಫೆಬ್ರವರಿ',
    ['March'] = 'ಮಾರ್ಚ್', ['march'] = 'ಮಾರ್ಚ್',
    ['April'] = 'ಏಪ್ರಿಲ್', ['april'] = 'ಏಪ್ರಿಲ್',
    ['May'] = 'ಮೇ', ['may'] = 'ಮೇ',
    ['June'] = 'ಜೂನ್', ['june'] = 'ಜೂನ್',
    ['July'] = 'ಜುಲೈ', ['july'] = 'ಜುಲೈ',
    ['August'] = 'ಆಗಸ್ಟ್', ['august'] = 'ಆಗಸ್ಟ್',
    ['September'] = 'ಸೆಪ್ಟೆಂಬರ್', ['september'] = 'ಸೆಪ್ಟೆಂಬರ್',
    ['October'] = 'ಅಕ್ಟೋಬರ್', ['october'] = 'ಅಕ್ಟೋಬರ್',
    ['November'] = 'ನವೆಂಬರ್', ['november'] = 'ನವೆಂಬರ್',
    ['December'] = 'ಡಿಸೆಂಬರ್', ['december'] = 'ಡಿಸೆಂಬರ್'
}

-- ============================================
-- Core conversion functions
-- ============================================

function p.toEnglish(input)
    if not input then return '' end
    input = tostring(input)
    local result = input
    for kn, en in pairs(kn_to_en) do
        result = result:gsub(kn, en)
    end
    return result
end

function p.toKannada(input)
    if not input then return '' end
    input = tostring(input)
    local result = input
    for en, kn in pairs(en_to_kn) do
        result = result:gsub(en, kn)
    end
    return result
end

function p.main(frame)
    local input = frame.args[1] or frame:getParent().args[1] or ''
    input = tostring(input)
    
    -- Check if input is a month number (1-12)
    local num = tonumber(input)
    if num and num >= 1 and num <= 12 then
        return month_numbers[tostring(num)]
    end
    
    -- Convert month names and digits
    local result = input
    for eng, kan in pairs(en_months) do
        result = result:gsub(eng, kan)
    end
    for eng, kan in pairs(en_to_kn) do
        result = result:gsub(eng, kan)
    end
    return result
end

-- ============================================
-- Inflation calculation
-- ============================================

function p.inflation(frame)
    local args = frame.args
    local value = p.toEnglish(args.value or args[2] or '')
    local start_year = p.toEnglish(args.start_year or args[3] or '')
    local end_year = p.toEnglish(args.end_year or args[4] or '')
    local index = args.index or args[1] or ''
    local r = tonumber(p.toEnglish(args.r or '0')) or 0
    local fmt = args.fmt or 'raw'
    
    -- Validate inputs
    local num_value = tonumber(value)
    local num_start = tonumber(start_year)
    local num_end = tonumber(end_year) or num_start or os.date('%Y')
    
    if not num_value then
        return '<span class="error">Error: Invalid value "' .. args.value .. '"</span>'
    end
    
    if not num_start then
        return '<span class="error">Error: Invalid start_year "' .. args.start_year .. '"</span>'
    end
    
    -- Calculate inflation
    -- This would ideally load data from Template:Inflation/ subpages
    -- For now, using a simple placeholder calculation
    local factor = 1.0
    
    -- Placeholder inflation factors
    if index == 'US' or index == 'US-GDP' then
        -- US inflation approximation
        if num_start < 1914 then factor = 30.0
        elseif num_start < 1950 then factor = 15.0
        elseif num_start < 1980 then factor = 5.0
        elseif num_start < 2000 then factor = 2.5
        else factor = 1.3
        end
    elseif index == 'UK' then
        if num_start < 1900 then factor = 25.0
        elseif num_start < 1950 then factor = 12.0
        elseif num_start < 1980 then factor = 4.0
        else factor = 1.5
        end
    elseif index == 'IN' then
        if num_start < 1950 then factor = 80.0
        elseif num_start < 1970 then factor = 40.0
        elseif num_start < 1990 then factor = 20.0
        elseif num_start < 2000 then factor = 10.0
        elseif num_start < 2010 then factor = 5.0
        else factor = 1.8
        end
    else
        -- Default factor
        if num_start < 2000 then factor = 2.0
        else factor = 1.2
        end
    end
    
    -- Adjust for end_year
    if num_end and num_end > num_start then
        local years = num_end - num_start
        factor = factor ^ (1 + years / 10)
    end
    
    local result = num_value * factor
    result = math.floor(result * 10^r + 0.5) / 10^r
    
    -- Format output
    if fmt == 'raw' then
        return p.toKannada(tostring(result))
    elseif fmt == 'eq' then
        return 'equivalent to ' .. p.toKannada(tostring(result)) .. ' in ' .. p.toKannada(tostring(num_end))
    else
        return p.toKannada(tostring(result))
    end
end

-- ============================================
-- Advanced inflation with data loading
-- ============================================

function p.inflationAdvanced(frame)
    local args = frame.args
    local value = p.toEnglish(args.value or args[2] or '')
    local start_year = p.toEnglish(args.start_year or args[3] or '')
    local end_year = p.toEnglish(args.end_year or args[4] or '')
    local index = args.index or args[1] or ''
    local r = tonumber(p.toEnglish(args.r or '0')) or 0
    local fmt = args.fmt or 'raw'
    
    local num_value = tonumber(value)
    local num_start = tonumber(start_year)
    local num_end = tonumber(end_year) or num_start or os.date('%Y')
    
    if not num_value then
        return '<span class="error">Error: Invalid value</span>'
    end
    
    if not num_start then
        return '<span class="error">Error: Invalid start_year</span>'
    end
    
    -- Simple compound interest calculation
    -- 3% annual inflation rate
    local rate = 0.03
    local years = num_end - num_start
    local factor = (1 + rate) ^ years
    
    local result = num_value * factor
    result = math.floor(result * 10^r + 0.5) / 10^r
    
    if fmt == 'raw' then
        return p.toKannada(tostring(result))
    else
        return p.toKannada(tostring(result))
    end
end

-- ============================================
-- Utility: IsNumeric with Kannada support
-- ============================================

function p.isNumeric(frame)
    local input = p.toEnglish(frame.args[1] or '')
    local num = tonumber(input)
    return num ~= nil
end

return p