param(
    [string]$Root = (Join-Path $env:LOCALAPPDATA 'SSPCTester\Projects')
)

$ErrorActionPreference = 'Stop'

function New-ProjectData {
    param(
        [string]$Name,
        [string]$Serial,
        [string]$Model,
        [string]$Manufacturer,
        [string]$Tester,
        [int]$DaysAgo,
        [int]$Seed,
        [double]$TemperatureC,
        [double]$HumidityPct,
        [double]$PressureKpa,
        [string]$Remark
    )

    $rng = [System.Random]::new($Seed)
    $createdAt = (Get-Date).Date.AddDays(-$DaysAgo).AddHours(9).AddMinutes($rng.Next(0, 45))
    $lastTestedAt = $createdAt.AddHours(1).AddMinutes($rng.Next(10, 35))

    $basicResults = @()
    $curveResults = @()
    $powerResults = @()

    for ($ch = 1; $ch -le 24; $ch++) {
        $basicResults += [ordered]@{
            Channel = $ch
            VoltageOn = [Math]::Round(27.78 + $rng.NextDouble() * 0.38, 3)
            CurrentOn = [Math]::Round(0.96 + $rng.NextDouble() * 0.055, 3)
            VoltageOff = [Math]::Round($rng.NextDouble() * 0.012, 3)
            Status = 2
        }

        $curveResults += [ordered]@{
            Channel = $ch
            OnTimeMs = [Math]::Round(1.05 + $rng.NextDouble() * 0.25, 3)
            RiseTimeMs = [Math]::Round(0.95 + $rng.NextDouble() * 0.20, 3)
            OffTimeMs = [Math]::Round(1.08 + $rng.NextDouble() * 0.22, 3)
            FallTimeMs = [Math]::Round(0.98 + $rng.NextDouble() * 0.18, 3)
            RisingWaveformPath = $null
            FallingWaveformPath = $null
            Status = 2
        }

        $powerResults += [ordered]@{
            Channel = $ch
            Vin = [Math]::Round(28.0 + ($rng.NextDouble() - 0.5) * 0.06, 3)
            Iin = [Math]::Round(1.000 + ($rng.NextDouble() - 0.5) * 0.012, 3)
            Vout = [Math]::Round(27.55 + ($rng.NextDouble() - 0.5) * 0.06, 3)
            Iout = [Math]::Round(0.998 + ($rng.NextDouble() - 0.5) * 0.012, 3)
            Status = 2
        }
    }

    $protects = @(
        @{ ProtectType = '跳闸'; Trigger = '1.5x额定电流' },
        @{ ProtectType = '短路'; Trigger = '输出短路' },
        @{ ProtectType = '过温'; Trigger = '>=85 ℃' },
        @{ ProtectType = '过压'; Trigger = '>=32 V' },
        @{ ProtectType = '欠压'; Trigger = '<=22 V' },
        @{ ProtectType = '限流'; Trigger = '>=1.2 A' }
    )

    $protectResults = @()
    for ($i = 0; $i -lt $protects.Count; $i++) {
        $protectResults += [ordered]@{
            ProtectType = $protects[$i].ProtectType
            Trigger = $protects[$i].Trigger
            TripTimeMs = [Math]::Round(2.0 + $i * 0.3 + $rng.NextDouble() * 0.2, 2)
            Status = 2
        }
    }

    [ordered]@{
        Name = $Name
        CreatedAt = $createdAt
        LastTestedAt = $lastTestedAt
        Dut = [ordered]@{
            ProductName = '固态功率控制器'
            Model = $Model
            SerialNumber = $Serial
            Manufacturer = $Manufacturer
        }
        Site = [ordered]@{
            Tester = $Tester
            TestDate = (Get-Date).Date.AddDays(-$DaysAgo)
            TemperatureC = $TemperatureC
            HumidityPct = $HumidityPct
            PressureKpa = $PressureKpa
            Remark = $Remark
        }
        Selection = [ordered]@{ Basic = $true; Curve = $true; Power = $true; Protect = $true }
        Report = [ordered]@{ Cover = $true; Basic = $true; Curve = $true; Power = $true; Protect = $true; FileName = 'report.pdf' }
        TestFunction = [ordered]@{
            Basic = '逐通道验证开合状态、导通电压、负载电流与关断残压。'
            Curve = '采集通道开启及关断动态曲线，统计开启、上升、关断、下降时间。'
            Power = '采集输入输出电压电流，计算压降、损耗功率与效率。'
            Protect = '执行跳闸、短路、过温、过压、欠压及限流保护功能验证。'
        }
        CurveThresholds = [ordered]@{ MaxOnTimeMs = 5.0; MaxRiseTimeMs = 3.0; MaxOffTimeMs = 5.0; MaxFallTimeMs = 3.0 }
        BasicResults = $basicResults
        CurveResults = $curveResults
        PowerResults = $powerResults
        ProtectResults = $protectResults
    }
}

function Get-SafeName([string]$Name) {
    $invalid = [IO.Path]::GetInvalidFileNameChars()
    -join ($Name.ToCharArray() | ForEach-Object {
        if ($invalid -contains $_) { '_' } else { $_ }
    })
}

$projects = @(
    New-ProjectData `
        -Name '合格样机-常温功能验证 A' `
        -Serial 'SSPC-QA-2026-0001' `
        -Model 'SSPC-24CH-28V-1A' `
        -Manufacturer 'SPC DynaTest 实验室' `
        -Tester '张工' `
        -DaysAgo 1 `
        -Seed 1101 `
        -TemperatureC 24.8 `
        -HumidityPct 52.0 `
        -PressureKpa 101.2 `
        -Remark '常温常压条件下完成 24 路基础、曲线、功率及保护功能测试，综合判定合格。'
    New-ProjectData `
        -Name '合格样机-低温启动验证 B' `
        -Serial 'SSPC-QA-2026-0002' `
        -Model 'SSPC-24CH-28V-1A-LT' `
        -Manufacturer 'SPC DynaTest 实验室' `
        -Tester '李工' `
        -DaysAgo 2 `
        -Seed 2202 `
        -TemperatureC -20.0 `
        -HumidityPct 38.0 `
        -PressureKpa 100.9 `
        -Remark '低温启动后完成全通道闭合、关断、动态响应与保护功能复核，全部项目合格。'
    New-ProjectData `
        -Name '合格样机-高温老化复测 C' `
        -Serial 'SSPC-QA-2026-0003' `
        -Model 'SSPC-24CH-28V-1A-HT' `
        -Manufacturer 'SPC DynaTest 实验室' `
        -Tester '王工' `
        -DaysAgo 3 `
        -Seed 3303 `
        -TemperatureC 55.0 `
        -HumidityPct 46.0 `
        -PressureKpa 100.6 `
        -Remark '高温老化后复测 24 路输出特性、时序曲线、功率损耗及六项保护，结果均满足判定阈值。'
)

New-Item -ItemType Directory -Path $Root -Force | Out-Null

foreach ($project in $projects) {
    $folder = Join-Path $Root (Get-SafeName $project.Name)
    New-Item -ItemType Directory -Path $folder -Force | Out-Null
    New-Item -ItemType Directory -Path (Join-Path $folder 'curves') -Force | Out-Null
    $json = $project | ConvertTo-Json -Depth 8
    Set-Content -LiteralPath (Join-Path $folder 'project.json') -Value $json -Encoding UTF8
    Write-Host "[OK] $($project.Name) -> $folder"
}

Write-Host "Done. $($projects.Count) qualified projects written to: $Root"